Oldsmobile Cutlass 1994 Ciera 3.1L Workshop Manual

oldsmobile :: Oldsmobile Cutlass Ciera V6-3100

3.1L MFI VIN M (1994)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Antenna Relay > Component Information > Locations > Component Locations

Behind Center Of I/P

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Antenna Relay > Component Information > Locations > Component Locations > Page 8

Behind RH Side Of I/P

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Keyless Entry Module > Component Information > Locations

LH Side Of Luggage Compartment

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Keyless Entry Module > Component Information > Locations > Page 12

Keyless Entry Module: Diagrams

Remote Keyless Entry (RKE) Module

Remote Keyless Entry (RKE) Module

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Relay Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Relay Module: > 09-06-03-

004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules

Relay Module: All Technical Service BulletinsElectrical - MIL ON/DTC's Set By Various Control Modules
TECHNICAL

09-06-03-004DBulletin No.:

December 08, 2010Date:

Subject:

Intermittent No Crank/No Start, No Module Communication, MIL, Warning Lights, Vehicle Messages or DTCs Set by Various ControlModules - Diagnosing and Repairing Fretting Corrosion (Disconnect Affected Connector and Apply Dielectric Lubricant)

Models:

2011 and Prior GM Passenger Cars and Trucks

Attention:

This repair can be applied to ANY electrical connection including, but not limited to: lighting, body electrical, in-line connections, powertrain controlsensors, etc. DO NOT over apply lubricant to the point where it prevents the full engagement of sealed connectors. A light coating on the terminalsurfaces is sufficient to correct the condition.

Supercede:This bulletin is being revised to update the Attention statement and add the 2011 model year. Please discard Corporate Bulletin Number 09-06-03-004C(Section 06 - Engine/Propulsion System).

Condition

Some customers may comment on any of the following conditions:

- An intermittent no crank/no start

- Intermittent malfunction indicator lamp (MIL) illumination

- Intermittent service lamp illumination

- Intermittent service message(s) being displayed

The technician may determine that he is unable to duplicate the intermittent condition.

Cause

- Vibration

- Thermal cycling

- Poor connection/terminal retention

- Micro motion

- A connector, component or wiring harness not properly secured resulting in movement
On low current signal circuits this condition may cause high resistance, resulting in intermittent connections.
On high current power circuits this condition may cause permanent increases in the resistance and may cause a device to become inoperative.

Representative List of Control Modules and Components

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Relay Module > Component Information > Technical Service Bulletins > All Technical

Service Bulletins for Relay Module: > 09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 21

Cutlass Ciera V6-3100 3.1L MFI VIN M (1994)

This condition may be caused by a buildup of nonconductive insulating oxidized debris known as fretting corrosion, occurring between two electricalcontact surfaces of the connection or connector. This may be caused by any of the following conditions:

The following is only a representative list of control modules and components that may be affected by this connection or connector condition and include every possible module or component for every vehicle. DOESNOT

- Blower Control Module

- Body Control Module (BCM)

- Communication Interface Module (CIM)

- Cooling Fan Control Module

- Electronic Brake Control Module (EBCM)

- Electronic Brake and Traction Control Module (EBTCM)

- Electronic Suspension Control (ESC) Module

- Engine Control Module (ECM)

- Heating, Ventilation and Air Conditioning (HVAC) Control Module

- HVAC Actuator

- Inflatable Restraint Sensing and Diagnostic Module (SDM)

- Any AIR BAG module

- Seatbelt Lap Anchor Pretensioner

- Seatbelt Retractor Pretensioner

- An SIR system connection or connector condition resulting in the following DTCs being set: B0015, B0016, B0019, B0020, B0022, or B0023

- Powertrain Control Module (PCM)

- Remote Control Door Lock Receiver (RCDLR)

- Transmission Control Module (TCM)

Correction

replace the control module, wiring or component for the following conditions: ImportantDO NOT

-

be duplicated. The condition is intermittent and cannot

-

be duplicated. The condition is present and by disconnecting and reconnecting the connector the condition can no longer

Use the following procedure to correct the conditions listed above.

1. Install a scan tool and perform the Diagnostic System Check - Vehicle. Retrieve and record any existing history or current DTCs from all of the

control modules (refer to SI).
If any DTC(s) are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle to identify the connector(s) of the control module/component

which may be causing the condition (refer to SI).

If DTCs are not set, refer to Symptoms - Vehicle to identify the connector(s) of the control module/component which may be causing the

condition (refer to SI).

2. When identified, use the appropriate DTC Diagnostics, Symptoms, Schematics, Component Connector End Views and Component Locator

documents to locate and disconnect the affected harness connector(s) which are causing the condition.

ImportantDO NOT

apply an excessive amount of dielectric lubricant to the connectors as shown, as hydrolock may result when attempting to mate theconnectors. Use ONLY a clean nylon brush that is dedicated to the repair of the conditions in this bulletin.

3. With a one-inch nylon bristle brush, apply dielectric lubricant to both the module/component side and the harness side of the affected connector(s).

4. Reconnect the affected connector(s) and wipe away any excess lubricant that may be present. 5. Attempt to duplicate the condition by using the following information:

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Relay Module > Component Information > Technical Service Bulletins > All Technical

Service Bulletins for Relay Module: > 09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 22

Cutlass Ciera V6-3100 3.1L MFI VIN M (1994)

Note

Fretting corrosion looks like little dark smudges on electrical terminals and appear where the actual electrical contact is being made. In less severecases it may be unable to be seen or identified without the use of a magnifying glass.

- DTC Diagnostic Procedure

- Circuit/System Description

- Conditions for Running the DTC

- Conditions for Setting the DTC

- Diagnostic Aids

- Circuit/System Verification

If the condition cannot be duplicated, the repair is complete. If the condition can be duplicated, then follow the appropriate DTC, Symptom or Circuit/System Testing procedure (refer to SI).

Repair Order Documentation

be documented on the repair order. Failure to do so may result in a chargeback.ImportantThe following information MUST

- Customer vehicle condition.

- Was a Service Lamp or Service Message illuminated? If yes, specify which Service Lamp or Service Message.

- Was a DTC(s) set? If yes, specify which DTC(s) were set.

- After following the procedure contained within this bulletin, could the condition be duplicated?

If the condition duplicated, then document the affected module/component connector name and number on the repair order. was not

-

was

If the condition duplicated after the procedure contained within this bulletin was followed, and additional diagnosis led to the replacement ofa module or component, the SI Document ID Number be written on the repair order. MUST

Parts Information

Alternate Distributor For All of North America
Note

NyoGel(R) 760G Lubricant* is equivalent to GMSPO P/N 12377900, and P/N 10953529 (Canada), specified for use to correct the condition in thisbulletin.

*We believe this source and their products to be reliable. There may be additional manufacturers of such products/materials. General Motors does notendorse, indicate any preference for, or assume any responsibility for the products or material from this firm or for any such items that may be availablefrom other sources.

Warranty Information (excluding Saab Models)

For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon the module/component connection that the dielectriclubricant was applied to:

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Relay Module > Component Information > Technical Service Bulletins > All Technical

Service Bulletins for Relay Module: > 09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 23

Cutlass Ciera V6-3100 3.1L MFI VIN M (1994)

Warranty Information (Saab Models)

For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon the module/component connection that the dielectriclubricant was applied to refer to the table above.

Disclaimer

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Relay Module > Component Information > Technical Service Bulletins > Customer Interest for Relay Module: > 09-06-03-004D > Dec > 10

> Electrical - MIL ON/DTC's Set By Various Control Modules

Relay Module: Customer InterestElectrical - MIL ON/DTC's Set By Various Control Modules
TECHNICAL

09-06-03-004DBulletin No.:

December 08, 2010Date:

Subject:

Intermittent No Crank/No Start, No Module Communication, MIL, Warning Lights, Vehicle Messages or DTCs Set by Various ControlModules - Diagnosing and Repairing Fretting Corrosion (Disconnect Affected Connector and Apply Dielectric Lubricant)

Models:

2011 and Prior GM Passenger Cars and Trucks

Attention:

This repair can be applied to ANY electrical connection including, but not limited to: lighting, body electrical, in-line connections, powertrain controlsensors, etc. DO NOT over apply lubricant to the point where it prevents the full engagement of sealed connectors. A light coating on the terminalsurfaces is sufficient to correct the condition.

Supercede:This bulletin is being revised to update the Attention statement and add the 2011 model year. Please discard Corporate Bulletin Number 09-06-03-004C(Section 06 - Engine/Propulsion System).

Condition

Some customers may comment on any of the following conditions:

- An intermittent no crank/no start

- Intermittent malfunction indicator lamp (MIL) illumination

- Intermittent service lamp illumination

- Intermittent service message(s) being displayed
The technician may determine that he is unable to duplicate the intermittent condition.

Cause

- Vibration

- Thermal cycling

- Poor connection/terminal retention

- Micro motion

- A connector, component or wiring harness not properly secured resulting in movement
On low current signal circuits this condition may cause high resistance, resulting in intermittent connections.
On high current power circuits this condition may cause permanent increases in the resistance and may cause a device to become inoperative.

Representative List of Control Modules and Components

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Relay Module > Component Information > Technical Service Bulletins > Customer

Interest for Relay Module: > 09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 29

Cutlass Ciera V6-3100 3.1L MFI VIN M (1994)

This condition may be caused by a buildup of nonconductive insulating oxidized debris known as fretting corrosion, occurring between two electricalcontact surfaces of the connection or connector. This may be caused by any of the following conditions:

The following is only a representative list of control modules and components that may be affected by this connection or connector condition and include every possible module or component for every vehicle. DOESNOT

- Blower Control Module

- Body Control Module (BCM)

- Communication Interface Module (CIM)

- Cooling Fan Control Module

- Electronic Brake Control Module (EBCM)

- Electronic Brake and Traction Control Module (EBTCM)

- Electronic Suspension Control (ESC) Module

- Engine Control Module (ECM)

- Heating, Ventilation and Air Conditioning (HVAC) Control Module

- HVAC Actuator

- Inflatable Restraint Sensing and Diagnostic Module (SDM)

- Any AIR BAG module

- Seatbelt Lap Anchor Pretensioner

- Seatbelt Retractor Pretensioner

- An SIR system connection or connector condition resulting in the following DTCs being set: B0015, B0016, B0019, B0020, B0022, or B0023

- Powertrain Control Module (PCM)

- Remote Control Door Lock Receiver (RCDLR)

- Transmission Control Module (TCM)

Correction

replace the control module, wiring or component for the following conditions: ImportantDO NOT

-

be duplicated. The condition is intermittent and cannot

-

be duplicated. The condition is present and by disconnecting and reconnecting the connector the condition can no longer

Use the following procedure to correct the conditions listed above.

1. Install a scan tool and perform the Diagnostic System Check - Vehicle. Retrieve and record any existing history or current DTCs from all of the

control modules (refer to SI).
If any DTC(s) are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle to identify the connector(s) of the control module/component

which may be causing the condition (refer to SI).

If DTCs are not set, refer to Symptoms - Vehicle to identify the connector(s) of the control module/component which may be causing the

condition (refer to SI).

2. When identified, use the appropriate DTC Diagnostics, Symptoms, Schematics, Component Connector End Views and Component Locator

documents to locate and disconnect the affected harness connector(s) which are causing the condition.

ImportantDO NOT

apply an excessive amount of dielectric lubricant to the connectors as shown, as hydrolock may result when attempting to mate theconnectors. Use ONLY a clean nylon brush that is dedicated to the repair of the conditions in this bulletin.

3. With a one-inch nylon bristle brush, apply dielectric lubricant to both the module/component side and the harness side of the affected connector(s).

4. Reconnect the affected connector(s) and wipe away any excess lubricant that may be present. 5. Attempt to duplicate the condition by using the following information:

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Relay Module > Component Information > Technical Service Bulletins > Customer

Interest for Relay Module: > 09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 30

Cutlass Ciera V6-3100 3.1L MFI VIN M (1994)

Note

Fretting corrosion looks like little dark smudges on electrical terminals and appear where the actual electrical contact is being made. In less severecases it may be unable to be seen or identified without the use of a magnifying glass.

- DTC Diagnostic Procedure

- Circuit/System Description

- Conditions for Running the DTC

- Conditions for Setting the DTC

- Diagnostic Aids

- Circuit/System Verification

If the condition cannot be duplicated, the repair is complete. If the condition can be duplicated, then follow the appropriate DTC, Symptom or Circuit/System Testing procedure (refer to SI).

Repair Order Documentation

be documented on the repair order. Failure to do so may result in a chargeback.ImportantThe following information MUST

- Customer vehicle condition.

- Was a Service Lamp or Service Message illuminated? If yes, specify which Service Lamp or Service Message.

- Was a DTC(s) set? If yes, specify which DTC(s) were set.

- After following the procedure contained within this bulletin, could the condition be duplicated?

If the condition duplicated, then document the affected module/component connector name and number on the repair order. was not

-

was

If the condition duplicated after the procedure contained within this bulletin was followed, and additional diagnosis led to the replacement ofa module or component, the SI Document ID Number be written on the repair order. MUST

Parts Information

Alternate Distributor For All of North America
Note

NyoGel(R) 760G Lubricant* is equivalent to GMSPO P/N 12377900, and P/N 10953529 (Canada), specified for use to correct the condition in thisbulletin.

*We believe this source and their products to be reliable. There may be additional manufacturers of such products/materials. General Motors does notendorse, indicate any preference for, or assume any responsibility for the products or material from this firm or for any such items that may be availablefrom other sources.

Warranty Information (excluding Saab Models)

For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon the module/component connection that the dielectriclubricant was applied to:

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Relay Module > Component Information > Technical Service Bulletins > Customer

Interest for Relay Module: > 09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 31

Cutlass Ciera V6-3100 3.1L MFI VIN M (1994)

Warranty Information (Saab Models)

For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon the module/component connection that the dielectriclubricant was applied to refer to the table above.

Disclaimer

> Relays and Modules > Relays and Modules - Body and Frame > Door Module > Component Information > Technical Service Bulletins > Auto Unlock Module - Location

Door Module: Technical Service BulletinsAuto Unlock Module - Location

File In Section: 8 - Chassis/Body Electrical
Bulletin No.: 43-81-30
Date: November, 1994

Subject:Section 8A - Auto Unlock Module Location

Models:1994 Buick Century1994 Oldsmobile Cutlass Ciera

This bulletin contains revisions to Section 8A-11, 8A-14, 8A-131 and 8A-201.
Auto unlock module is located on the LH side of I/P (Instrument Panel) left of the steering column.

> Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module > Component Information > Locations

LH Side Of Luggage Compartment

> Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module > Component Information > Locations > Page 40

Keyless Entry Module: Diagrams

Remote Keyless Entry (RKE) Module

Remote Keyless Entry (RKE) Module

> Relays and Modules > Relays and Modules - Body and Frame > Auto Door Unlock Module <--> [Power Door Lock Control Module] > Component Information > Locations

Auto Door Unlock Module: Locations

NOTE: The OEM service manual does not provide a location image for this module.

Auto Door Unlock Module is located at the RH side of I/P heater duct.

> Relays and Modules > Relays and Modules - Body and Frame > Auto Door Unlock Module <--> [Power Door Lock Control Module] > Component Information > Locations > Page 44

Autodoor Unlock Module

> Relays and Modules > Relays and Modules - Body and Frame > Power Door Lock Relay > Component Information > Technical Service Bulletins > Recalls for Power Door Lock Relay: > 94C50 > Sep > 94 > Recall -

Automatic Power Door Lock Relay Short

Technical Service Bulletin # 94C50

Recall - Automatic Power Door Lock Relay Short

NUMBER: 94-C-50CORP.REF.NO.:DATE: SEPTEMBER 1994SECTION: 8C

SUBJECT:AUTOMATIC POWER DOOR LOCK RELAY

YEAR:1994

MODEL:CUTLASS CIERA

General Information

TO: All Oldsmobile Retailers

The National Traffic and Motor Vehicle Safety Act, as amended, provides that each vehicle subject to a recall campaign of this type must be adequatelyrepaired within a reasonable time after the owner has tendered it for repair. A failure to repair within sixty (60) days after tender of a vehicle is primafacie evidence of failure to repair within a reasonable time.

If the condition is not adequately repaired within a reasonable time, the owner may be entitled to an identical or reasonably equivalent vehicle at nocharge or to a refund of the purchase price less a reasonable allowance for depreciation.

To avoid having to provide these burdensome solutions, every effort must be made to promptly schedule an appointment with each owner and to repairtheir vehicle as soon as possible. As you will see in reading the included copy of the letter that is being sent to owners, the owners are being instructed tocontact the Oldsmobile Customer Assistance Network (OCAN) if their retailer does not remedy the condition within five (5) days of the mutually agreedupon service date. If the condition is not remedied within a reasonable time, they are instructed on how to contact the National Highway Traffic SafetyAdministration.
DEFECT INVOLVED

To prevent the possibility of this condition from occurring, retailers are to replace the power door lock relay and any corroded terminals. In addition, thenew relay will be relocated to an area where water intrusion is less likely.
VEHICLES INVOLVED

Certain 1994 Oldsmobile Cutlass Ciera vehicles within the breakpoints are listed. See illustration.

> Relays and Modules > Relays and Modules - Body and Frame > Power Door Lock Relay > Component Information > Technical Service Bulletins > Recalls for Power Door

Lock Relay: > 94C50 > Sep > 94 > Recall - Automatic Power Door Lock Relay Short > Page 53

Cutlass Ciera V6-3100 3.1L MFI VIN M (1994)

General Motors has determined that a defect which relates to motor vehicle safety exists in certain 1994 Oldsmobile Cutlass Ciera model vehicles. Someof these vehicles were built with a power door lock relay that can short internally due to water intrusion. If this occurs, a vehicle fire could occur withoutprior warning.

Involved vehicles have been identified by Vehicle Identification Number listings. Computer listings contain the complete vehicle identification number,owner name and address data, and are furnished to involved retailers with the campaign bulletin. Owner name and address data furnished will enableretailers to follow-up with owners involved in this campaign.

These listings may contain owner names and addresses obtained from State Motor Vehicle Registration Records. The use of such motor vehicleregistration data for any other purpose is a violation of law in several states. Accordingly, you are urged to limit the use of this listing to the follow-upnecessary to complete this campaign. Any retailer not receiving a computer listing with the campaign bulletin has no involved vehicles currentlyassigned.

All vehicles listed on the retailer's printout will require correction. Other suspect vehicles should be checked for campaign involvement by utilizing theVehicle Information Service System (V.I.S.S.).
PARTS INFORMATION

Approximately 20% of the anticipated required parts will be pre-shipped to retailer facilities on or about the week of September 15, 1994. The parts willbe charged to the retailer's open account.

If additional parts are required to complete this campaign, they are to be obtained from GMSPO (General Motors Service Paris Operations). To ensurethese parts will be obtained as soon as possible, they should be ordered from GMSPO on a C.I.O. order, with NO special instruction code, but order onan advise code (2).

OWNER NOTIFICATION Owners will be notified of this recall on their vehicles by Oldsmobile Division (see copy of the owner letter included with this bulletin).
RETAIL CAMPAIGN RESPONSIBILITY

All unsold new vehicles in retailers' possession and subject to this campaign must be held and inspected/repaired per the service procedure of thiscampaign bulletin before owners take possession of these vehicles. After campaign is completed, the vehicle may be released for sale/delivery.

Retailers are to service all vehicles subject to this campaign at no charge to owners, regardless of mileage, age of vehicle, or ownership, from this timeforward.

In summary, whenever a vehicle subject to this campaign is taken into your new or used vehicle inventory, or it is in your retail facility for service in thefuture, please take the steps necessary to be sure the campaign correction has been made before selling or releasing the vehicle. Your cooperation incompleting this campaign as soon as possible will be greatly appreciated.

Service Procedure

1. Raise and support the hood.

2.

Disconnect negative battery cable. NOTICE: Prior to disconnecting the battery cable, preset radio stations should be reviewed and recorded so thatthey may be reset prior to delivery to customer.

3. Remove the right side sound insulator from below instrument panel and right side shroud finishing panel molding (forward of the carpet retainer).

4. Reposition carpet at the right side cowl panel to expose electrical wiring harness.

5. Remove relay from cavity in front body hinge pillar.

> Relays and Modules > Relays and Modules - Body and Frame > Power Door Lock Relay > Component Information > Technical Service Bulletins > Recalls for Power Door

Lock Relay: > 94C50 > Sep > 94 > Recall - Automatic Power Door Lock Relay Short > Page 54

Cutlass Ciera V6-3100 3.1L MFI VIN M (1994)

Owners of vehicles recently sold from your new vehicle inventory with no owner information indicated on the retailer listing are to be contacted by theretailer, and arrangements made to make the required correction according to the instructions contained in this bulletin. This could be done by mailing tosuch owners a copy of the owner's letter included in this bulletin. Campaign follow-up cards should not be used for this purpose, since the owner may notas yet have received the notification letter.

NOTICE:

Relay is covered in foam to prevent rattles and has a six (6) terminal connector (see Figure 1).

6.

Remove and discard relay and inspect all terminals on connector for corrosion. If no corrosion is present, proceed to step 9, otherwise, continue tostep 7.

> Relays and Modules > Relays and Modules - Body and Frame > Power Door Lock Relay > Component Information > Technical Service Bulletins > Recalls for Power Door

Lock Relay: > 94C50 > Sep > 94 > Recall - Automatic Power Door Lock Relay Short > Page 55

Cutlass Ciera V6-3100 3.1L MFI VIN M (1994)

7. Replace connector terminals (see Figure 1).

8.

Since corrosion was present, the right upper body side hinge strap may not be properly sealed to the hinge pillar at the front edge of the hinge strap(see Figure 2).

Reseal hinge strap to pillar at upper front corner and front side using a clear flow grade sealer such as 3M Ultra Pro # 08302, American Sure Seal# CSC, Kent # 10200, or equivalent (see Figure 2).

NOTICE:

Access for the sealer application to front edge can be done through the front opening of the door to fender with door in full open position.Apply material on an acid brush, and paddle sealing material into position.

9. Install new relay to connector.

10. Reposition and tape relay to harness with connector pointing down as shown in Figure 3.

NOTICE:

DO NOT install new relay in original position.

11. Reinstall carpet, right side shroud finishing panel molding and sound insulator panel molding and sound insulator panel.

12. Reconnect battery cable and reset radio presets.

13. Install a Campaign Identification Label.

Campaign Identification Label

> Relays and Modules > Relays and Modules - Body and Frame > Power Door Lock Relay > Component Information > Technical Service Bulletins > Recalls for Power Door

Lock Relay: > 94C50 > Sep > 94 > Recall - Automatic Power Door Lock Relay Short > Page 56

Cutlass Ciera V6-3100 3.1L MFI VIN M (1994)

Each label provides space to print the campaign number and the five (5) digit retailer code of the retailer performing the campaign. Insert thisinformation with a typewriter or ball-point pen. When installing label, clean and dry the surface of the radiator support tie bar and apply the campaignlabel where it is readily visible.

Each Campaign Identification Label is to be located on the radiator core support in an area which will be visible when the vehicle is brought in forperiodic servicing by the owner.

Warranty Claim Information

Submit claims using only one, of the "V" labor-ops for each vehicle:

Parts Allowance:Current retailer price, plus 40% allowance for handling.

Owner Letter

September 1994
Dear Oldsmobile Cutlass Ciera Owner:
This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act.

REASON FOR THIS SAFETY RECALL:General Motors has determined that a defect which relates to motor vehicle safety exists in certain 1994 Oldsmobile Cutlass Ciera model vehicles. Someof these vehicles were built with a power door lock relay that can short internally due to water intrusion. If this occurs, a vehicle fire could occur withoutprior warning.

WHAT WE WILL DO:To prevent the possibility of this condition from occurring, retailers are to replace the power door lock relay and any corroded terminals. In addition, thenew relay will be relocated to an area where water intrusion is less likely. This service will be performed for you at no charge.

WHAT YOU SHOULD DO:Please contact your Oldsmobile retailer immediately to arrange a service date. Instructions have been sent to your retailer. It is estimated that parts willbe available to your retailer September 15, 1994. Please ask your retailer if you wish an estimate of the total time needed to schedule, process and returnyour vehicle. Included in this time would be about forty-five (45) minutes for a technician to perform the work required.

Your Oldsmobile retailer is best equipped to obtain parts and provide service to promptly correct your vehicle. However, if you take your vehicle to yourretailer on the agreed service date, and they do not remedy this condition then or within five days, we suggest you call Oldsmobile Customer Assistance(1-800-442-6537). Deaf, hearing impaired, or speech impaired persons with telecommunications devices for the deaf (TDD/TTY) may contactOldsmobile Customer Assistance at 1-800-TDD-OLDS (1-800-833-6537). They will assist you and the retailer in getting your vehicle corrected.

After contacting your retailer and Oldsmobile Customer Assistance, if you are still not satisfied that we have done our best to remedy this conditionwithout charge and within a reasonable time, you may write the Administrator, National Highway Traffic Safety Administration, 400 Seventh St., S.W.,Washington, D.C. 20590 or call 800-424-9393 (Washington, D.C. residents call 366-0123).

OWNER REPLY CARD:The enclosed owner reply card identifies your vehicle. Presentation of this card to your retailer will assist in making the necessary correction in theshortest possible time. If you have sold or traded your vehicle, please let us know by completing the postage paid reply card and returning it to us.
We are sorry to cause you this inconvenience; however, we have taken this action for your safety and continued satisfaction with our products.

> Relays and Modules > Relays and Modules - Body and Frame > Power Door Lock Relay > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Power Door Lock Relay: > 94C50 > Sep

> 94 > Recall - Automatic Power Door Lock Relay Short

Technical Service Bulletin # 94C50

Recall - Automatic Power Door Lock Relay Short

NUMBER: 94-C-50CORP.REF.NO.:DATE: SEPTEMBER 1994SECTION: 8C

SUBJECT:AUTOMATIC POWER DOOR LOCK RELAY

YEAR:1994

MODEL:CUTLASS CIERA

General Information

TO: All Oldsmobile Retailers

The National Traffic and Motor Vehicle Safety Act, as amended, provides that each vehicle subject to a recall campaign of this type must be adequatelyrepaired within a reasonable time after the owner has tendered it for repair. A failure to repair within sixty (60) days after tender of a vehicle is primafacie evidence of failure to repair within a reasonable time.

If the condition is not adequately repaired within a reasonable time, the owner may be entitled to an identical or reasonably equivalent vehicle at nocharge or to a refund of the purchase price less a reasonable allowance for depreciation.

To avoid having to provide these burdensome solutions, every effort must be made to promptly schedule an appointment with each owner and to repairtheir vehicle as soon as possible. As you will see in reading the included copy of the letter that is being sent to owners, the owners are being instructed tocontact the Oldsmobile Customer Assistance Network (OCAN) if their retailer does not remedy the condition within five (5) days of the mutually agreedupon service date. If the condition is not remedied within a reasonable time, they are instructed on how to contact the National Highway Traffic SafetyAdministration.
DEFECT INVOLVED

To prevent the possibility of this condition from occurring, retailers are to replace the power door lock relay and any corroded terminals. In addition, thenew relay will be relocated to an area where water intrusion is less likely.
VEHICLES INVOLVED

Certain 1994 Oldsmobile Cutlass Ciera vehicles within the breakpoints are listed. See illustration.

> Relays and Modules > Relays and Modules - Body and Frame > Power Door Lock Relay > Component Information > Technical Service Bulletins > All Technical Service

Bulletins for Power Door Lock Relay: > 94C50 > Sep > 94 > Recall - Automatic Power Door Lock Relay Short > Page 62

Cutlass Ciera V6-3100 3.1L MFI VIN M (1994)

General Motors has determined that a defect which relates to motor vehicle safety exists in certain 1994 Oldsmobile Cutlass Ciera model vehicles. Someof these vehicles were built with a power door lock relay that can short internally due to water intrusion. If this occurs, a vehicle fire could occur withoutprior warning.

Involved vehicles have been identified by Vehicle Identification Number listings. Computer listings contain the complete vehicle identification number,owner name and address data, and are furnished to involved retailers with the campaign bulletin. Owner name and address data furnished will enableretailers to follow-up with owners involved in this campaign.

These listings may contain owner names and addresses obtained from State Motor Vehicle Registration Records. The use of such motor vehicleregistration data for any other purpose is a violation of law in several states. Accordingly, you are urged to limit the use of this listing to the follow-upnecessary to complete this campaign. Any retailer not receiving a computer listing with the campaign bulletin has no involved vehicles currentlyassigned.

All vehicles listed on the retailer's printout will require correction. Other suspect vehicles should be checked for campaign involvement by utilizing theVehicle Information Service System (V.I.S.S.).
PARTS INFORMATION

Approximately 20% of the anticipated required parts will be pre-shipped to retailer facilities on or about the week of September 15, 1994. The parts willbe charged to the retailer's open account.

If additional parts are required to complete this campaign, they are to be obtained from GMSPO (General Motors Service Paris Operations). To ensurethese parts will be obtained as soon as possible, they should be ordered from GMSPO on a C.I.O. order, with NO special instruction code, but order onan advise code (2).

OWNER NOTIFICATION Owners will be notified of this recall on their vehicles by Oldsmobile Division (see copy of the owner letter included with this bulletin).
RETAIL CAMPAIGN RESPONSIBILITY

All unsold new vehicles in retailers' possession and subject to this campaign must be held and inspected/repaired per the service procedure of thiscampaign bulletin before owners take possession of these vehicles. After campaign is completed, the vehicle may be released for sale/delivery.

Retailers are to service all vehicles subject to this campaign at no charge to owners, regardless of mileage, age of vehicle, or ownership, from this timeforward.

In summary, whenever a vehicle subject to this campaign is taken into your new or used vehicle inventory, or it is in your retail facility for service in thefuture, please take the steps necessary to be sure the campaign correction has been made before selling or releasing the vehicle. Your cooperation incompleting this campaign as soon as possible will be greatly appreciated.

Service Procedure

1. Raise and support the hood.

2.

Disconnect negative battery cable. NOTICE: Prior to disconnecting the battery cable, preset radio stations should be reviewed and recorded so thatthey may be reset prior to delivery to customer.

3. Remove the right side sound insulator from below instrument panel and right side shroud finishing panel molding (forward of the carpet retainer).

4. Reposition carpet at the right side cowl panel to expose electrical wiring harness.

5. Remove relay from cavity in front body hinge pillar.

> Relays and Modules > Relays and Modules - Body and Frame > Power Door Lock Relay > Component Information > Technical Service Bulletins > All Technical Service

Bulletins for Power Door Lock Relay: > 94C50 > Sep > 94 > Recall - Automatic Power Door Lock Relay Short > Page 63

Cutlass Ciera V6-3100 3.1L MFI VIN M (1994)

Owners of vehicles recently sold from your new vehicle inventory with no owner information indicated on the retailer listing are to be contacted by theretailer, and arrangements made to make the required correction according to the instructions contained in this bulletin. This could be done by mailing tosuch owners a copy of the owner's letter included in this bulletin. Campaign follow-up cards should not be used for this purpose, since the owner may notas yet have received the notification letter.

NOTICE:

Relay is covered in foam to prevent rattles and has a six (6) terminal connector (see Figure 1).

6.

Remove and discard relay and inspect all terminals on connector for corrosion. If no corrosion is present, proceed to step 9, otherwise, continue tostep 7.

> Relays and Modules > Relays and Modules - Body and Frame > Power Door Lock Relay > Component Information > Technical Service Bulletins > All Technical Service

Bulletins for Power Door Lock Relay: > 94C50 > Sep > 94 > Recall - Automatic Power Door Lock Relay Short > Page 64

Cutlass Ciera V6-3100 3.1L MFI VIN M (1994)

7. Replace connector terminals (see Figure 1).

8.

Since corrosion was present, the right upper body side hinge strap may not be properly sealed to the hinge pillar at the front edge of the hinge strap(see Figure 2).

Reseal hinge strap to pillar at upper front corner and front side using a clear flow grade sealer such as 3M Ultra Pro # 08302, American Sure Seal# CSC, Kent # 10200, or equivalent (see Figure 2).

NOTICE:

Access for the sealer application to front edge can be done through the front opening of the door to fender with door in full open position.Apply material on an acid brush, and paddle sealing material into position.

9. Install new relay to connector.

10. Reposition and tape relay to harness with connector pointing down as shown in Figure 3.

NOTICE:

DO NOT install new relay in original position.

11. Reinstall carpet, right side shroud finishing panel molding and sound insulator panel molding and sound insulator panel.

12. Reconnect battery cable and reset radio presets.

13. Install a Campaign Identification Label.

Campaign Identification Label

> Relays and Modules > Relays and Modules - Body and Frame > Power Door Lock Relay > Component Information > Technical Service Bulletins > All Technical Service

Bulletins for Power Door Lock Relay: > 94C50 > Sep > 94 > Recall - Automatic Power Door Lock Relay Short > Page 65

Cutlass Ciera V6-3100 3.1L MFI VIN M (1994)

Each label provides space to print the campaign number and the five (5) digit retailer code of the retailer performing the campaign. Insert thisinformation with a typewriter or ball-point pen. When installing label, clean and dry the surface of the radiator support tie bar and apply the campaignlabel where it is readily visible.

Each Campaign Identification Label is to be located on the radiator core support in an area which will be visible when the vehicle is brought in forperiodic servicing by the owner.

Warranty Claim Information

Submit claims using only one, of the "V" labor-ops for each vehicle:

Parts Allowance:Current retailer price, plus 40% allowance for handling.

Owner Letter

September 1994
Dear Oldsmobile Cutlass Ciera Owner:
This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act.

REASON FOR THIS SAFETY RECALL:General Motors has determined that a defect which relates to motor vehicle safety exists in certain 1994 Oldsmobile Cutlass Ciera model vehicles. Someof these vehicles were built with a power door lock relay that can short internally due to water intrusion. If this occurs, a vehicle fire could occur withoutprior warning.

WHAT WE WILL DO:To prevent the possibility of this condition from occurring, retailers are to replace the power door lock relay and any corroded terminals. In addition, thenew relay will be relocated to an area where water intrusion is less likely. This service will be performed for you at no charge.

WHAT YOU SHOULD DO:Please contact your Oldsmobile retailer immediately to arrange a service date. Instructions have been sent to your retailer. It is estimated that parts willbe available to your retailer September 15, 1994. Please ask your retailer if you wish an estimate of the total time needed to schedule, process and returnyour vehicle. Included in this time would be about forty-five (45) minutes for a technician to perform the work required.

Your Oldsmobile retailer is best equipped to obtain parts and provide service to promptly correct your vehicle. However, if you take your vehicle to yourretailer on the agreed service date, and they do not remedy this condition then or within five days, we suggest you call Oldsmobile Customer Assistance(1-800-442-6537). Deaf, hearing impaired, or speech impaired persons with telecommunications devices for the deaf (TDD/TTY) may contactOldsmobile Customer Assistance at 1-800-TDD-OLDS (1-800-833-6537). They will assist you and the retailer in getting your vehicle corrected.

After contacting your retailer and Oldsmobile Customer Assistance, if you are still not satisfied that we have done our best to remedy this conditionwithout charge and within a reasonable time, you may write the Administrator, National Highway Traffic Safety Administration, 400 Seventh St., S.W.,Washington, D.C. 20590 or call 800-424-9393 (Washington, D.C. residents call 366-0123).

OWNER REPLY CARD:The enclosed owner reply card identifies your vehicle. Presentation of this card to your retailer will assist in making the necessary correction in theshortest possible time. If you have sold or traded your vehicle, please let us know by completing the postage paid reply card and returning it to us.
We are sorry to cause you this inconvenience; however, we have taken this action for your safety and continued satisfaction with our products.

> Relays and Modules > Relays and Modules - Body and Frame > Power Door Lock Relay > Component Information > Locations > Component Locations

Power Door Lock Relay: Component Locations

RH Shroud And Door

The Door Lock Relay Assembly is located on the RH shroud.

> Relays and Modules > Relays and Modules - Body and Frame > Power Door Lock Relay > Component Information > Locations > Component Locations > Page 68

RH Shroud And Door

> Relays and Modules > Relays and Modules - Body and Frame > Power Door Lock Relay > Component Information > Locations > Page 69

Door Lock Relay Assembly

> Relays and Modules > Relays and Modules - Body and Frame > Trunk / Liftgate Relay > Component Information > Locations

Behind Center Of I/P

> Relays and Modules > Relays and Modules - Body and Frame > Trunk / Liftgate Relay > Component Information > Locations > Page 73

Release Relay

> Relays and Modules > Relays and Modules - Brakes and Traction Control > ABS Main Relay > Component Information > Locations

RH Rear Of Engine Compartment

> Relays and Modules > Relays and Modules - Brakes and Traction Control > ABS Main Relay > Component Information > Locations > Page 78

Electronic Brake Control Relay

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Brake Fluid Solenoid Valve Relay > Component Information > Locations > LH Front

Brake Fluid Solenoid Valve Relay: LocationsLH Front

LH Rear Of Engine Compartment

Left Front ABS Solenoid is located at the LH side of shock tower, on ABS Master Cylinder

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Brake Fluid Solenoid Valve Relay > Component Information > Locations > LH Front > Page 83

LH Rear Of Engine Compartment

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Technical Service Bulletins > Customer Interest for Electronic Brake Control Module:

> 73-50-26 > Aug > 97 > Brakes - ABS Light ON, DTC 46 & 86 (C1246 & C1286)

Electronic Brake Control Module: Customer InterestBrakes - ABS Light ON, DTC 46 & 86 (C1246 & C1286)

File In Section: 5 - Brakes
Bulletin No.: 73-50-26
Date: August, 1997

Subject: ABS Light On - DTC's 46 and 86 Set(Perform Diagnostic Procedure, Replace Center ABS Motor Pinion)

Models: 1991-97 Buick Skylark1992-97 Buick Regal1994-97 Buick Century1992-96 Chevrolet Beretta, Corsica, Lumina APV1992-97 Chevrolet Cavalier, Lumina,1993-97 Chevrolet Camaro1995-97 Chevrolet Monte Carlo1997

Chevrolet Malibu, Venture

1993-97 Geo Prizm1995-97 Geo Metro1996-97 Geo Tracker1991

Oldsmobile Calais

1992-96 Oldsmobile Cutlass Ciera1992-97 Oldsmobile Achieva, Cutlass Supreme, Silhouette1997

Oldsmobile Cutlass

1998 Oldsmobile Intrigue

1991-97 Pontiac Grand Am1992-94 Pontiac Sunbird1992-97 Pontiac Grand Prix, Trans Sport1993-97 Pontiac Firebird, Trans Am1995-97 Pontiac Sunfire
Condition

Some owners may comment that the ABS light is on with Diagnostic Trouble Codes (DTC's) 46 and 86 set (rear ABS channel will not move) as currentor history. (DTC's 46 and 86 will be displayed as C1246 and C1286 on 1997 and 1998 model year vehicles).
Cause

A condition exists where the ABS motor pack gear (pinion) will bind on the motor armature shaft causing the motor not to move when commanded bythe EBCM. This condition is aggravated by light corrosion between the pinion and shaft. Therefore, it may occur more frequently when the weather ishot and humid.

Important:

Other EBCM and ABS motor pack concerns can also cause this condition, but they are not as common as the above cause.

Correction

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Technical Service Bulletins >

Customer Interest for Electronic Brake Control Module: > 73-50-26 > Aug > 97 > Brakes - ABS Light ON, DTC 46 & 86 (C1246 & C1286) > Page 92

Cutlass Ciera V6-3100 3.1L MFI VIN M (1994)

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Technical Service Bulletins >

Customer Interest for Electronic Brake Control Module: > 73-50-26 > Aug > 97 > Brakes - ABS Light ON, DTC 46 & 86 (C1246 & C1286) > Page 93

Cutlass Ciera V6-3100 3.1L MFI VIN M (1994)

Follow the included procedure (Attachments 1 and 2) for diagnosis. This condition may correct itself before the owner is able to bring the vehicle in forservice. Therefore, if DTC 46 is set in history, and is not currently setting, the included procedure will instruct you to replace the center ABS motorpinion. The new pinion has a Teflon insert which reduces friction between the pinion and motor armature shaft.
Pinion Replacement

If the included procedure instructs you to replace the center ABS motor pinion, use P/N 18029776. Please note that the new pinion is a directreplacement part which requires no modifications to the motor shaft. Follow the pinion replacement procedure included with the new pinion. Completemotor pack replacement is not required.
Parts Information

Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation Labor Time

H2506 Use published labor

operation time.

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Electronic Brake

Control Module: > 73-50-26 > Aug > 97 > Brakes - ABS Light ON, DTC 46 & 86 (C1246 & C1286)

Electronic Brake Control Module: All Technical Service BulletinsBrakes - ABS Light ON, DTC 46 & 86 (C1246 & C1286)

File In Section: 5 - Brakes
Bulletin No.: 73-50-26
Date: August, 1997

Subject: ABS Light On - DTC's 46 and 86 Set(Perform Diagnostic Procedure, Replace Center ABS Motor Pinion)

Models: 1991-97 Buick Skylark1992-97 Buick Regal1994-97 Buick Century1992-96 Chevrolet Beretta, Corsica, Lumina APV1992-97 Chevrolet Cavalier, Lumina,1993-97 Chevrolet Camaro1995-97 Chevrolet Monte Carlo1997

Chevrolet Malibu, Venture

1993-97 Geo Prizm1995-97 Geo Metro1996-97 Geo Tracker1991

Oldsmobile Calais

1992-96 Oldsmobile Cutlass Ciera1992-97 Oldsmobile Achieva, Cutlass Supreme, Silhouette1997

Oldsmobile Cutlass

1998 Oldsmobile Intrigue

1991-97 Pontiac Grand Am1992-94 Pontiac Sunbird1992-97 Pontiac Grand Prix, Trans Sport1993-97 Pontiac Firebird, Trans Am1995-97 Pontiac Sunfire
Condition

Some owners may comment that the ABS light is on with Diagnostic Trouble Codes (DTC's) 46 and 86 set (rear ABS channel will not move) as currentor history. (DTC's 46 and 86 will be displayed as C1246 and C1286 on 1997 and 1998 model year vehicles).
Cause

A condition exists where the ABS motor pack gear (pinion) will bind on the motor armature shaft causing the motor not to move when commanded bythe EBCM. This condition is aggravated by light corrosion between the pinion and shaft. Therefore, it may occur more frequently when the weather ishot and humid.

Important:

Other EBCM and ABS motor pack concerns can also cause this condition, but they are not as common as the above cause.

Correction

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Technical Service Bulletins > All

Technical Service Bulletins for Electronic Brake Control Module: > 73-50-26 > Aug > 97 > Brakes - ABS Light ON, DTC 46 & 86 (C1246 & C1286) > Page 99

Cutlass Ciera V6-3100 3.1L MFI VIN M (1994)

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Technical Service Bulletins > All

Technical Service Bulletins for Electronic Brake Control Module: > 73-50-26 > Aug > 97 > Brakes - ABS Light ON, DTC 46 & 86 (C1246 & C1286) > Page 100

Cutlass Ciera V6-3100 3.1L MFI VIN M (1994)

Follow the included procedure (Attachments 1 and 2) for diagnosis. This condition may correct itself before the owner is able to bring the vehicle in forservice. Therefore, if DTC 46 is set in history, and is not currently setting, the included procedure will instruct you to replace the center ABS motorpinion. The new pinion has a Teflon insert which reduces friction between the pinion and motor armature shaft.
Pinion Replacement

If the included procedure instructs you to replace the center ABS motor pinion, use P/N 18029776. Please note that the new pinion is a directreplacement part which requires no modifications to the motor shaft. Follow the pinion replacement procedure included with the new pinion. Completemotor pack replacement is not required.
Parts Information

Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation Labor Time

H2506 Use published labor

operation time.

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Locations > Antilock Brake Module

Electronic Brake Control Module: LocationsAntilock Brake Module

Fig. 1 TYPICAL ABS Components

Refer to for system component locations.Fig. 1

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Locations > Antilock Brake Module > Page 103

Behind RH Side Of I/P

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Diagrams > EBCM 2 Pin Connector

Electronic Brake Control Module: DiagramsEBCM 2 Pin Connector

Fig. 31 EBCM 2-pin Connector Face View.

When performing diagnostic procedures refer to for EBCM connector terminal identification.Fig. 31

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Diagrams > EBCM 2 Pin Connector > Page 106

Electronic Brake Control Module (EBCM)

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Diagrams > EBCM 2 Pin Connector > Page 107

Electronic Brake Control Module: DiagramsPinout Description

Electronic Brake Control Module (EBCM) (Part 1 Of 2)

Electronic Brake Control Module (EBCM) (Part 2 Of 2)

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Diagrams > Page 108

Electronic Brake Control Module: Description and Operation
DESCRIPTION

The ABS system is controlled by a microprocessor based Electronic Brake Control Module (EBCM). Inputs to the system include four wheelspeed sensors, brakes, ignition switch and unswitched battery voltage. Outputs include three bi-directional motor controls, three lamp controls, twosolenoid controls and the system enable relay. A serial data line, located in terminal 9 of the Data Link Connector (DLC), is provided for servicediagnostic tools and assembly plant testing.

The EBCM monitors the speed of each wheel. If any wheel begins to approach lock-up and the brake switch is on, the EBCM controls the motorsand solenoids to reduce brake pressure to the wheel approaching lock-up. Once the wheel regains traction, brake pressure is increased until wheelbegins to approach lock-up. This cycle repeats until either vehicle comes to a stop, the brake is released or no wheels approach lock-up.Additionally, the EBCM monitors itself, each input and each output for proper operation. If any system fault is detected, the EBCM will store aDTC in nonvolatile memory.

On a EBTCM, the ABS portion of the module operates the same as a EBCM. A EBTCM is used if the vehicle is equipped with either theEnhanced Traction System (ETS) or Traction Control System (TCS). The ETS or TCS portion of the EBTCM monitors wheel spin slip throughthe drive wheels speed sensors. If the wheels begin to slip, the EBTCM determines the desired wheel torque needed to minimize wheel slip. Thisinformation is sent to the PCM through the Serial data link. On models equipped w/ETS, the PCM controls engine torque by ignition retard andtransmission shifts. On models equipped w/TCS, the PCM controls engine torque by ignition retard, transmission shifts and applies brakes severaltimes until the vehicle regains traction. Once the vehicle regains traction, brake pressure is decreased and engine torque reduction is no longerrequested. This cycle repeats until traction control is no longer necessary.

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Diagrams > Page 109

Electronic Brake Control Module: Service and Repair

Fig. 800 EBCM Assembly Removal.

Fig.800

1. Disconnect EBCM electrical connectors, .2. Remove ECU to dash panel attaching screws, then the ECU from dash panel.3. Reverse procedure to install, noting the following:

a. Ensure plastic grommets, if equipped, are located properly.b. Bleed brake system as described under . See: Brakes and Traction Control/Brake BleedingBrake System Bleed

> Relays and Modules > Relays and Modules - Cooling System > Radiator Cooling Fan Motor Relay > Component Information > Locations