Cadillac Eldorado 1994 V8 4.6L Workshop Manual

cadillac :: Cadillac Eldorado V8-4.6L VIN Y (1994)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Accessory Delay Module > Accessory Delay Relay > Component Information > Locations > 2 Door

LH Electronics Bay Board (behind Panel) (2 Door)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Accessory Delay Module > Accessory Delay Relay > Component Information > Locations > 2 Door > Page 9

LH Electronics Bay Board (behind Panel) (4 Door)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Accessory Delay Module > Accessory Delay Relay > Component Information > Locations > Page 10

RAP Relay

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm Module, (Vehicle Antitheft) > Component Information > Locations > PASS-Key

RH Electronic Bay (Concours Shown, Eldorado/Seville Similar)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm Module, (Vehicle Antitheft) > Component Information > Locations > PASS-Key > Page 15

LH Electronic Bay (behind Panel)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm Module, (Vehicle Antitheft) > Component Information > Diagrams > PASS-Key

Alarm Module: DiagramsPASS-Key

Pass-key(R) Decoder Module

Pass-key(R) Decoder Module

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm Module, (Vehicle Antitheft) > Component Information > Diagrams > PASS-Key > Page 18

Alarm Module: DiagramsUniversal Theft Deterrent UTD (RPO UA6)

Theft Deterrent Module

Theft Deterrent Module

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm Module, (Vehicle Antitheft) > Component Information > Description and Operation > PASS-Key

Alarm Module: Description and OperationPASS-Key

PURPOSE

The Personal Automotive Security System is designed to disable vehicle operation if the incorrect key or starting procedure is used.(PASS-Key)

OPERATION

(PCM)

The PASS-Key decoder module sends a signal to the Powertrain Control Module , on circuit 229, if the correct key is being used. If theproper signal does not reach the PCM, it will not pulse the fuel injectors "ON" and thus not allow the vehicle to start.

Passkey II Schematic (Typical)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm Module, (Vehicle Antitheft) > Component Information > Description and

Operation > PASS-Key > Page 21

Eldorado V8-4.6L VIN Y (1994)

Passkey System Diagram - Typical

CIRCUIT OPERATION

Resistor sensing contacts are located in the ignition key lock cylinder. These contact the key resistor pellet on the key when it is inserted. When thelock is rotated, battery voltage is applied through a fuse to the PASS-Key decoder module. The pellet resistance is then compared against a fixedresistance in the module.

If the key pellet is the proper resistance, terminal A4 is grounded, energizing the starter enable relay. At the same time, a signal is applied atterminal A3 to enable the Electronic Control Module (ECM). When this signal is received by the Electronic Control Module (ECM), it allows fuelinjector pulses to begin.

If the key resister pellet is the wrong value, the PASS-Key decoder module will shut down for 2 to 4 minutes. During this interval there will be nooutput at terminals A3 or A4.

If the ignition switch is turned on again during this interval, the timer will remain shut down for another 2 to 4 minutes. The PASS-Key decodermodule will continue this process even if a key with the correct pellet is used to turn the ignition back on. The timer is restarted by the ignitionswitch voltage at terminal A2 when the ignition switch is turned to RUN.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm Module, (Vehicle Antitheft) > Component Information > Description and

Operation > PASS-Key > Page 22

Eldorado V8-4.6L VIN Y (1994)

Once the timer has completed its 2 to 4 minute cycle with the ignition off, the PASS-Key decoder module and timer are reset. A key having thecorrect code can then be used to start the engine.

The security indicator is controlled directly by the PASS-Key decoder module. If there is a PASS-Key failure this indicator will be grounded bythe PASS-Key decoder module with the ignition in RUN, BULB TEST, or START. When the ignition switch is first placed in RUN, BULBTEST, or START the indicator lights for about 2 seconds as a bulb check.

Special Passkey Ignition Key - With Specific Resistance Coded Pellet

The special ignition key used for the PASS-Key system includes a special coded resistor pellet.

Contacts In The Lock Cylinder Touch The Key's Pellet

The special PASS-Key ignition lock cylinder contains a set of contacts that touch the coded resistor pellet in the key. A two wire harness carriesthis key code signal to the PASS-Key decoder module.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm Module, (Vehicle Antitheft) > Component Information > Description and Operation > PASS-Key > Page 23

Alarm Module: Description and OperationUniversal Theft Deterrent UTD (RPO UA6)

(UTD)

The Universal Theft Deterrent System is designed to sound the horns and flash the exterior lights when the system is armed and entry is gainedforcibly through the doors or trunk.

Alarms

Operation of the exterior lights and horns when activated, is controlled by the Theft Deterrent Module via the Theft Deterrent Relay. Fuse B3applies voltage to the Theft Deterrent Relay's coil at all times.

When the alarm is active the Theft Deterrent Module cycles the alarm system control driver (terminal F) on and off once per second. During thiscycle ground is applied to the Theft Deterrent Relay coil and then removed. This causes the relay to energize and de-energize. The relay contactswill now cycle open and closed at the same rate as the alarm system control driver.

When the Theft Deterrent Relay's contacts are closed, the Horn, Park Lights, and Headlight Relays are grounded through the Diode Pack, andCKT 624. The relays now energize and the relays respective circuits will turn on. The Diode Pack is installed in the circuit to provide circuitisolation. If the diode pack were to short some unusual symptoms might occur such as the headlights light when the horn is sounded.

Arming

Arming the Theft Deterrent System is a four step procedure. The arming sequence begins when the ignition is turned OFF. This removes batteryvoltage at module terminal K, the ignition 1 input. Step 2 occurs when a door is opened and ground is applied to module terminal J, the tamperinput. The system is still not armed so grounding the tamper input at this time does not set off the alarms. The SECURITY indicator flashes to alertthe operator the system is not armed. Step 3 occurs when the doors are locked electrically, this applies battery voltage to the module's terminal G,the system arm input. The SECURITY indicator is on steady to indicate that the system is armed. The arming sequence is completed when alldoors are closed, removing ground from the module's terminal J, the tamper input. The system is now armed. The SECURITY indicator willremain on for a few seconds.

(RKE)

The Remote Keyless Entry System can also arm the Universal Theft Deterrent System if the ignition is off. When the Keyless EntryModule locks the doors it simulates a door being opened and then closed by momentarily grounding the Theft Deterrent Module's tamper input,terminal J. The Keyless Entry Module does this by applying ground through its automatic door lock inhibit terminal C9 and CKT 263. TheKeyless Entry Module applies battery voltage to the theft module's system arm input terminal G when it locks the doors. Once the doors are lockedthe Keyless Entry Module opens its automatic door lock inhibit, this simulates the doors being closed and completes the arming procedure.

Cancellation

The arming sequence can be canceled by unlocking the doors electrically prior to closing the door. When the doors are unlocked, voltage ismomentarily applied to the theft module's terminal M. This signals the module not to arm and the module will ignore the door being closed.

Two other methods of disarming the system are turning the ignition to RUN using the key and using the Keyless Entry transmitter to unlock thedoors.

When the Keyless Entry Module unlocks the doors it simulates a door lock cylinder switch closing to disarm the system. The Keyless EntryModule does this by grounding the Theft Module's disarm input terminal H. This is done through CKT 262 and the low side output driver at theKeyless Entry Module's terminal C8.
Turning the ignition to RUN will not disarm the system when the alarm is active.

Tampering

The alarms are set off when the Theft Module's tamper input, terminal J, is momentarily grounded after the system has been armed. This will occurwhen a door is opened causing a door ajar switch to ground or when Trunk Lid Tamper Switch closes due to tampering at the trunk lid lock.

Disarming

When one of the front doors is unlocked with a key, the Front Door Lock Cylinder Switch closes. This grounds the Theft Module's disarm input,terminal H. The system is now disarmed and no alarms will operate when a door is opened.

Security Indicator

The Security indicator reminds the operator to arm the system by flashing and indicates that the system is armed when it stays on steady. The TheftDeterrent Module controls the indicator by grounding it through the indicator control driver at terminal D. The PASS-Key system also uses theSECURITY indicator to inform the driver about its status.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm Module, (Vehicle Antitheft) > Component Information > Service and Repair > PASS-Key

Alarm Module: Service and RepairPASS-Key

If a PASS-Key Module is bad, it should be replaced with a new PASS-Key Module. Obtain all ignition keys to verily correct key code with tool J35628-A, and verify that each key will start car after module replacement.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm Module, (Vehicle Antitheft) > Component Information > Service and Repair > PASS-Key > Page 26

Alarm Module: Service and RepairProgramming A New Decoder Module
PASS-Key II DECODER MODULE LEARN PROCEDURE

If the PASS-Key II Decoder module is bad, it should be replaced with a new PASS-Key II Decoder module. It is not necessary to match thereplacement PASS-Key II Decoder module to the ignition key. The replacement PASS-Key II Decoder module "learns" the ignition key code(resistance value) the first time it is turned on. The ignition key code is "learned" permanently, so caution should be used to ensure that unwanted keycodes are not "learned".If a fault is detected in the system wiring, or it a defective key is used, the replacement module does not "learn" the key code and the "SECURITY"indicator flashes at a rate of once per second while the ignition is on to indicate a fault.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm Module, (Vehicle Antitheft) > Component Information > Service and Repair > PASS-Key > Page 27

Alarm Module: Service and RepairUniversal Theft Deterrent UTD (RPO UA6)
THEFT DETERRENT MODULE

REMOVE OR DISCONNECT

INSTALL OR CONNECT

1. Theft Deterrent Module (2 Nuts).2. Wiring harness connector.3. Trunk trim panel.

1. Trunk trim panel.2. Wiring harness connector.3. Theft Deterrent Module (2 Nuts).

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

RH Rear Of Trunk

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Antitheft Relay > Component Information > Locations > PASS-Key

Antitheft Relay: LocationsPASS-Key
STARTER ENABLE RELAY

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Antitheft Relay > Component Information > Locations > PASS-Key > Page 35

Eldorado V8-4.6L VIN Y (1994)

LH Front Seat Area

The Starter Enable is taped to body main harness, 9 inches rearward of front edge of LH rocker panel channel.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Antitheft Relay > Component Information > Locations > PASS-Key > Page 36

LH Electronics Bay Board (behind Panel) (2 Door)

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

LH Electronics Bay Board (behind Panel) (2 Door)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > Customer Interest for Keyless Entry Module: > 539002A

Keyless Entry Module: Customer InterestRemote Keyless Entry - Jamming Due to Garage Door Opener

FILE IN SECTION: 9 - Accessories
BULLETIN NO.: 53-90-02A
DATE: June, 1995

SUBJECT:Remote Keyless Entry (RKE) Jamming when Vehicle is in Owner's Garage (Replace RKE Module)

MODELS:1994-95 Cadillac Concours, DeVille, Eldorado, Sevillewith Module Numbers 16193106 and 16215349
This bulletin is being revised to delete the Fleetwood model. Please discard Corporate Bulletin Number 53-90-02 (Section 9 - Accessories)

CONDITION
Some owners may comment on the Remote Keyless Entry (RKE) jamming when vehicle is in the garage.
CAUSE
Due to different frequencies, RKE jamming may result from Stanley and Moromatic garage door openers.
CORRECTION

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins >

Customer Interest for Keyless Entry Module: > 539002A > Page 45

Eldorado V8-4.6L VIN Y (1994)

The following procedure and parts have been developed to correct the jamming condition (see illustration).

Important:

Before beginning this procedure, refer to bulletin # 219004 (Cadillac: T-92-73, GM of Canada: 93-9-117). If repairs are unsatisfactory afterperforming that bulletin, then proceed with the following.

1. Remove trunk front trim panel. Refer to Section 9K of the Service Manual.

2. Remove RKE module from trunk panel. Module located on upper left side of panel.

3. Assemble new RKE module, automatic door lock module and harness.

4. Install module onto trunk panel.

5.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins >

Customer Interest for Keyless Entry Module: > 539002A > Page 46

Eldorado V8-4.6L VIN Y (1994)

Using outboard hole from old module location, install screw at harness end of module, slide opposite end under Universal Theft Deterrent module,no screw needed. Module should be parallel with trunk panel top section when installed properly.

6. Remove protective plastic from hook and loop material on wiring harness and adhere to RKE module surface.

7. Clip Automatic Door Lock module to left upper metal edge of rear seat pass through surface.

8. Install trunk trim panel.

9.
Program transmitters. Use procedure in Section 9K, transmitter buttons only need to be pressed once to program for the TRW system, all othersteps are the same.

Important:

If buttons on transmitter are pressed twice on same transmitter, the second transmitter cannot be programmed.

10.
Advise owner of changes with transmitters -a.

Dealer to program transmitters.
b. Loss of interior lights only feature.
c. Review new transmitter button features with owner.

PARTS INFORMATION
(1) P/N 12077872 - Automatic Door Lock Module
(1) P/N 10178756 - RKE Module

(2) P/N 25609144 - RKE Transmitters (2 required)
(1) P/N 25640280 - Wiring Harness

Parts are currently available from GMSPO.
WARRANTY INFORMATION
For vehicles repaired under warranty, use:

Labor Operation

Labor Time

R4480 Use published labor operation time.
Add 0.1 hr (to retrofit TRW module)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > Customer Interest for Keyless Entry Module: > 539002A >

Page 47

Keyless Entry Module: Customer InterestRemote Keyless Entry System - Operates Incorrectly

File In Section: 9 - Accessories
Bulletin No.: 43-90-24
Date: January, 1995

Subject:Automatic Door Lock at Key Off and/or Remote Keyless Entry (RKE) System Functions Operating Incorrectly (Replace RKE Module)

Models:1993-95 Cadillac Eldorado, Seville1994-95 Cadillac Concours, DeVille

ConditionOwners may comment that some Remote Keyless Entry (RKE) system functions may not operate correctly.
Three conditions may occur:

1. Automatic doors lock when ignition switch is turned to the "OFF" position.

2. Trunk lid latch unlocks when it should not.

3. RKE transmitter does not activate the door locks, illuminated entry or trunk lid latch.

Vehicles Affected
CAUSE

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins >

Customer Interest for Keyless Entry Module: > 539002A > Page 48

Eldorado V8-4.6L VIN Y (1994)

Condition # 1The fuel pump currently installed on the vehicles listed above may generate electrical transients which interfere with proper operation of the RemoteKeyless Entry (RKE) module. The RKE module may respond to cause one or more of the conditions stated above.

Conditions # 2 and # 3Outside noise interference near the frequency of the RKE transmitter (key fob) to receiver (RKE module) signal may cause these conditions. Software inthe RKE receiver interpreted the noise as data, allowing the possibility of condition # 2 and/or # 3 to occur. An update to the software eliminated theunwanted conditions.

CORRECTIONTo repair the above conditions, replace the RKE module with the following:
RKE module (Domestic*) - P/N 16215349 (With Date Code 05 or later)

RKE module (Export) - P/N 16215399
(*Includes Canada)

The RKE module date code is the left-most two digits of the number on the module connector.
Follow the module replacement procedure provided in Section 9K of the 1994 Service Manual. Refer to ON-VEHICLE SERVICE paragraph.

: Note

In 1995 model year, initial production of new RKE module, P/N 16215349, did not have the updated software described above. For those vehicles,replace RKE module, P/N 16215349, with service part RKE module, P/N 16215349, having Date Code 05 or later. The VIN breakpoints for vehicleswith the new RKE module but old software in the module are as follows:

1995 Concours, DeVille - 221304 to 261820
1995 Eldorado - 604176 to 612222
1995 Seville - 806148 to 818910

Parts Information
Parts are currently available from GMSPO.

Warranty Information

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module:

> 539002A

Keyless Entry Module: All Technical Service BulletinsRemote Keyless Entry - Jamming Due to Garage Door Opener

FILE IN SECTION: 9 - Accessories
BULLETIN NO.: 53-90-02A
DATE: June, 1995

SUBJECT:Remote Keyless Entry (RKE) Jamming when Vehicle is in Owner's Garage (Replace RKE Module)

MODELS:1994-95 Cadillac Concours, DeVille, Eldorado, Sevillewith Module Numbers 16193106 and 16215349
This bulletin is being revised to delete the Fleetwood model. Please discard Corporate Bulletin Number 53-90-02 (Section 9 - Accessories)

CONDITION
Some owners may comment on the Remote Keyless Entry (RKE) jamming when vehicle is in the garage.
CAUSE
Due to different frequencies, RKE jamming may result from Stanley and Moromatic garage door openers.
CORRECTION

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

Technical Service Bulletins for Keyless Entry Module: > 539002A > Page 51

Eldorado V8-4.6L VIN Y (1994)

The following procedure and parts have been developed to correct the jamming condition (see illustration).

Important:

Before beginning this procedure, refer to bulletin # 219004 (Cadillac: T-92-73, GM of Canada: 93-9-117). If repairs are unsatisfactory afterperforming that bulletin, then proceed with the following.

1. Remove trunk front trim panel. Refer to Section 9K of the Service Manual.

2. Remove RKE module from trunk panel. Module located on upper left side of panel.

3. Assemble new RKE module, automatic door lock module and harness.

4. Install module onto trunk panel.

5.

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

Technical Service Bulletins for Keyless Entry Module: > 539002A > Page 52

Eldorado V8-4.6L VIN Y (1994)

Using outboard hole from old module location, install screw at harness end of module, slide opposite end under Universal Theft Deterrent module,no screw needed. Module should be parallel with trunk panel top section when installed properly.

6. Remove protective plastic from hook and loop material on wiring harness and adhere to RKE module surface.

7. Clip Automatic Door Lock module to left upper metal edge of rear seat pass through surface.

8. Install trunk trim panel.

9.
Program transmitters. Use procedure in Section 9K, transmitter buttons only need to be pressed once to program for the TRW system, all othersteps are the same.

Important:

If buttons on transmitter are pressed twice on same transmitter, the second transmitter cannot be programmed.

10.
Advise owner of changes with transmitters -a.

Dealer to program transmitters.
b. Loss of interior lights only feature.
c. Review new transmitter button features with owner.

PARTS INFORMATION
(1) P/N 12077872 - Automatic Door Lock Module
(1) P/N 10178756 - RKE Module

(2) P/N 25609144 - RKE Transmitters (2 required)
(1) P/N 25640280 - Wiring Harness

Parts are currently available from GMSPO.
WARRANTY INFORMATION
For vehicles repaired under warranty, use:

Labor Operation

Labor Time

R4480 Use published labor operation time.
Add 0.1 hr (to retrofit TRW module)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module:

> 539002A > Page 53

Keyless Entry Module: All Technical Service BulletinsRemote Keyless Entry System - Operates Incorrectly

File In Section: 9 - Accessories
Bulletin No.: 43-90-24
Date: January, 1995

Subject:Automatic Door Lock at Key Off and/or Remote Keyless Entry (RKE) System Functions Operating Incorrectly (Replace RKE Module)

Models:1993-95 Cadillac Eldorado, Seville1994-95 Cadillac Concours, DeVille

ConditionOwners may comment that some Remote Keyless Entry (RKE) system functions may not operate correctly.
Three conditions may occur:

1. Automatic doors lock when ignition switch is turned to the "OFF" position.

2. Trunk lid latch unlocks when it should not.

3. RKE transmitter does not activate the door locks, illuminated entry or trunk lid latch.

Vehicles Affected
CAUSE

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

Technical Service Bulletins for Keyless Entry Module: > 539002A > Page 54

Eldorado V8-4.6L VIN Y (1994)

Condition # 1The fuel pump currently installed on the vehicles listed above may generate electrical transients which interfere with proper operation of the RemoteKeyless Entry (RKE) module. The RKE module may respond to cause one or more of the conditions stated above.

Conditions # 2 and # 3Outside noise interference near the frequency of the RKE transmitter (key fob) to receiver (RKE module) signal may cause these conditions. Software inthe RKE receiver interpreted the noise as data, allowing the possibility of condition # 2 and/or # 3 to occur. An update to the software eliminated theunwanted conditions.

CORRECTIONTo repair the above conditions, replace the RKE module with the following:
RKE module (Domestic*) - P/N 16215349 (With Date Code 05 or later)

RKE module (Export) - P/N 16215399
(*Includes Canada)

The RKE module date code is the left-most two digits of the number on the module connector.
Follow the module replacement procedure provided in Section 9K of the 1994 Service Manual. Refer to ON-VEHICLE SERVICE paragraph.

: Note

In 1995 model year, initial production of new RKE module, P/N 16215349, did not have the updated software described above. For those vehicles,replace RKE module, P/N 16215349, with service part RKE module, P/N 16215349, having Date Code 05 or later. The VIN breakpoints for vehicleswith the new RKE module but old software in the module are as follows:

1995 Concours, DeVille - 221304 to 261820
1995 Eldorado - 604176 to 612222
1995 Seville - 806148 to 818910

Parts Information
Parts are currently available from GMSPO.

Warranty Information

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > Page 55

LH Electronic Bay (behind Panel)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Keyless Entry Module > Component Information > Diagrams > Harness Connector

Keyless Entry Module: DiagramsHarness Connector

Keyless Entry Module

Keyless Entry Module

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Keyless Entry Module > Component Information > Diagrams > Harness Connector > Page 58

> 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

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 > Page 64

Eldorado V8-4.6L VIN Y (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 > Page 65

Eldorado V8-4.6L VIN Y (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 > Page 66

Eldorado V8-4.6L VIN Y (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 > All Technical Service Bulletins for Relay Module: > 09-06-03-

004D

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 > Page 69

Eldorado V8-4.6L VIN Y (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 > Page 70

Eldorado V8-4.6L VIN Y (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 > Page 71

Eldorado V8-4.6L VIN Y (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 > Fuel Door Release Relay > Component Information > Locations > Fuel Door Lock Relay Assembly

LH Electronics Bay Board (behind Panel) (4 Door)

> Relays and Modules > Relays and Modules - Body and Frame > Fuel Door Release Relay > Component Information > Locations > Fuel Door Lock Relay Assembly > Page 77

LH Electronics Bay Board (behind Panel) (4 Door)

> Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module > Component Information > Technical Service Bulletins > Customer Interest for Keyless Entry Module: > 539002A

Keyless Entry Module: Customer InterestRemote Keyless Entry - Jamming Due to Garage Door Opener

FILE IN SECTION: 9 - Accessories
BULLETIN NO.: 53-90-02A
DATE: June, 1995

SUBJECT:Remote Keyless Entry (RKE) Jamming when Vehicle is in Owner's Garage (Replace RKE Module)

MODELS:1994-95 Cadillac Concours, DeVille, Eldorado, Sevillewith Module Numbers 16193106 and 16215349
This bulletin is being revised to delete the Fleetwood model. Please discard Corporate Bulletin Number 53-90-02 (Section 9 - Accessories)

CONDITION
Some owners may comment on the Remote Keyless Entry (RKE) jamming when vehicle is in the garage.
CAUSE
Due to different frequencies, RKE jamming may result from Stanley and Moromatic garage door openers.
CORRECTION

> Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module > Component Information > Technical Service Bulletins > Customer Interest for

Keyless Entry Module: > 539002A > Page 83

Eldorado V8-4.6L VIN Y (1994)

The following procedure and parts have been developed to correct the jamming condition (see illustration).

Important:

Before beginning this procedure, refer to bulletin # 219004 (Cadillac: T-92-73, GM of Canada: 93-9-117). If repairs are unsatisfactory afterperforming that bulletin, then proceed with the following.

1. Remove trunk front trim panel. Refer to Section 9K of the Service Manual.

2. Remove RKE module from trunk panel. Module located on upper left side of panel.

3. Assemble new RKE module, automatic door lock module and harness.

4. Install module onto trunk panel.

5.

> Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module > Component Information > Technical Service Bulletins > Customer Interest for

Keyless Entry Module: > 539002A > Page 84

Eldorado V8-4.6L VIN Y (1994)

Using outboard hole from old module location, install screw at harness end of module, slide opposite end under Universal Theft Deterrent module,no screw needed. Module should be parallel with trunk panel top section when installed properly.

6. Remove protective plastic from hook and loop material on wiring harness and adhere to RKE module surface.

7. Clip Automatic Door Lock module to left upper metal edge of rear seat pass through surface.

8. Install trunk trim panel.

9.

Program transmitters. Use procedure in Section 9K, transmitter buttons only need to be pressed once to program for the TRW system, all othersteps are the same.

Important:

If buttons on transmitter are pressed twice on same transmitter, the second transmitter cannot be programmed.

10.

Advise owner of changes with transmitters -a.

Dealer to program transmitters.
b. Loss of interior lights only feature.
c. Review new transmitter button features with owner.

PARTS INFORMATION
(1) P/N 12077872 - Automatic Door Lock Module
(1) P/N 10178756 - RKE Module

(2) P/N 25609144 - RKE Transmitters (2 required)
(1) P/N 25640280 - Wiring Harness

Parts are currently available from GMSPO.
WARRANTY INFORMATION
For vehicles repaired under warranty, use:

Labor Operation

Labor Time

R4480 Use published labor operation time.
Add 0.1 hr (to retrofit TRW module)

> Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module > Component Information > Technical Service Bulletins > Customer Interest for Keyless Entry Module: > 539002A > Page 85

Keyless Entry Module: Customer InterestRemote Keyless Entry System - Operates Incorrectly

File In Section: 9 - Accessories
Bulletin No.: 43-90-24
Date: January, 1995

Subject:Automatic Door Lock at Key Off and/or Remote Keyless Entry (RKE) System Functions Operating Incorrectly (Replace RKE Module)

Models:1993-95 Cadillac Eldorado, Seville1994-95 Cadillac Concours, DeVille

ConditionOwners may comment that some Remote Keyless Entry (RKE) system functions may not operate correctly.
Three conditions may occur:

1. Automatic doors lock when ignition switch is turned to the "OFF" position.

2. Trunk lid latch unlocks when it should not.

3. RKE transmitter does not activate the door locks, illuminated entry or trunk lid latch.

Vehicles Affected
CAUSE

> Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module > Component Information > Technical Service Bulletins > Customer Interest for

Keyless Entry Module: > 539002A > Page 86

Eldorado V8-4.6L VIN Y (1994)

Condition # 1The fuel pump currently installed on the vehicles listed above may generate electrical transients which interfere with proper operation of the RemoteKeyless Entry (RKE) module. The RKE module may respond to cause one or more of the conditions stated above.

Conditions # 2 and # 3Outside noise interference near the frequency of the RKE transmitter (key fob) to receiver (RKE module) signal may cause these conditions. Software inthe RKE receiver interpreted the noise as data, allowing the possibility of condition # 2 and/or # 3 to occur. An update to the software eliminated theunwanted conditions.

CORRECTIONTo repair the above conditions, replace the RKE module with the following:
RKE module (Domestic*) - P/N 16215349 (With Date Code 05 or later)

RKE module (Export) - P/N 16215399
(*Includes Canada)

The RKE module date code is the left-most two digits of the number on the module connector.
Follow the module replacement procedure provided in Section 9K of the 1994 Service Manual. Refer to ON-VEHICLE SERVICE paragraph.

: Note

In 1995 model year, initial production of new RKE module, P/N 16215349, did not have the updated software described above. For those vehicles,replace RKE module, P/N 16215349, with service part RKE module, P/N 16215349, having Date Code 05 or later. The VIN breakpoints for vehicleswith the new RKE module but old software in the module are as follows:

1995 Concours, DeVille - 221304 to 261820
1995 Eldorado - 604176 to 612222
1995 Seville - 806148 to 818910

Parts Information
Parts are currently available from GMSPO.

Warranty Information

> Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module: > 539002A

Keyless Entry Module: All Technical Service BulletinsRemote Keyless Entry - Jamming Due to Garage Door Opener

FILE IN SECTION: 9 - Accessories
BULLETIN NO.: 53-90-02A
DATE: June, 1995

SUBJECT:Remote Keyless Entry (RKE) Jamming when Vehicle is in Owner's Garage (Replace RKE Module)

MODELS:1994-95 Cadillac Concours, DeVille, Eldorado, Sevillewith Module Numbers 16193106 and 16215349
This bulletin is being revised to delete the Fleetwood model. Please discard Corporate Bulletin Number 53-90-02 (Section 9 - Accessories)

CONDITION
Some owners may comment on the Remote Keyless Entry (RKE) jamming when vehicle is in the garage.
CAUSE
Due to different frequencies, RKE jamming may result from Stanley and Moromatic garage door openers.
CORRECTION

> Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service

Bulletins for Keyless Entry Module: > 539002A > Page 89

Eldorado V8-4.6L VIN Y (1994)

The following procedure and parts have been developed to correct the jamming condition (see illustration).

Important:

Before beginning this procedure, refer to bulletin # 219004 (Cadillac: T-92-73, GM of Canada: 93-9-117). If repairs are unsatisfactory afterperforming that bulletin, then proceed with the following.

1. Remove trunk front trim panel. Refer to Section 9K of the Service Manual.

2. Remove RKE module from trunk panel. Module located on upper left side of panel.

3. Assemble new RKE module, automatic door lock module and harness.

4. Install module onto trunk panel.

5.

> Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service

Bulletins for Keyless Entry Module: > 539002A > Page 90

Eldorado V8-4.6L VIN Y (1994)

Using outboard hole from old module location, install screw at harness end of module, slide opposite end under Universal Theft Deterrent module,no screw needed. Module should be parallel with trunk panel top section when installed properly.

6. Remove protective plastic from hook and loop material on wiring harness and adhere to RKE module surface.

7. Clip Automatic Door Lock module to left upper metal edge of rear seat pass through surface.

8. Install trunk trim panel.

9.
Program transmitters. Use procedure in Section 9K, transmitter buttons only need to be pressed once to program for the TRW system, all othersteps are the same.

Important:

If buttons on transmitter are pressed twice on same transmitter, the second transmitter cannot be programmed.

10.
Advise owner of changes with transmitters -a.

Dealer to program transmitters.
b. Loss of interior lights only feature.
c. Review new transmitter button features with owner.

PARTS INFORMATION
(1) P/N 12077872 - Automatic Door Lock Module
(1) P/N 10178756 - RKE Module

(2) P/N 25609144 - RKE Transmitters (2 required)
(1) P/N 25640280 - Wiring Harness

Parts are currently available from GMSPO.
WARRANTY INFORMATION
For vehicles repaired under warranty, use:

Labor Operation

Labor Time

R4480 Use published labor operation time.
Add 0.1 hr (to retrofit TRW module)