Dodge Grand Caravan 1994 V6 201 3.3L Workshop Manual

dodge :: Dodge Truck Grand Caravan V6-201 3.3L
(1994)

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

Micro Relay Block

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

Body Control Module System

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Keyless Entry Module > Component Information > Locations > Page 10

Keyless Entry Module: Diagrams

Remote Keyless Entry Module Connectors

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Keyless Entry Module > Component Information > Service and Repair > Programming Module

Keyless Entry Module: Service and RepairProgramming Module

PROGRAMMING RKE MODULE

The RKE module is capable of retaining up to 4 different VAC(s) when vehicle battery power is interrupted. Replacement or additional key fobtransmitter VAC(s) (maximum 4) can be programmed into the Body Control Module (BCM). A functional key fob transmitter is required to programthe BCM to accept the new VAC. If a functional key fob transmitter is not available, a scan tool (DRB) can be used to program the BCM.
(1) Using a functional key fob, unlock the vehicle and disarm the Vehicle Theft Alarm

(2) Insert ignition key into the ignition switch.
(3) Switch ignition to RUN position without starting engine.
(4) On a functional key fob, actuate and hold the UNLOCK button for a minimum four seconds (maximum ten seconds).
(5) While holding UNLOCK button, and before ten seconds passes, actuate and release the PANIC button. A single chime will sound to verify that the

RKE module is set to receive the new VAC.

(6) Within 30 seconds of the chime, actuate any key on each new key fob transmitter. After 30 seconds or when ignition switch is turned OF{ the RKE

module will end the programming mode. A single chime will sound to verify that the RKE module will no longer receive additional VAC(s).

(7) When VAC programming is complete, turn OFF ignition switch and verify RKE system operation using each key fob.

NOTE: Only the primary (first two) key fob transmitters will operate the memory seat and mirror systems. If a primary key fob is being replaced, thememory seat and mirror module will require programming. Refer to Group 8R, Power Seats for proper (data link) programming procedure.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Keyless Entry Module > Component Information > Service and Repair > Programming Module > Page 13

Keyless Entry Module: Service and RepairRemote Keyless Entry Module Replacement

REMOVAL

(1) Remove instrument panel top cover.
(2) Remove screws holding RKE module to instrument panel.
(3) Disconnect wire connector from RKE module.
(4) Remove module.

INSTALLATION

Reverse the preceding operation.

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

Body Control Module System

> Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module > Component Information > Locations > Page 18

Keyless Entry Module: Diagrams

Remote Keyless Entry Module Connectors

> Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module > Component Information > Service and Repair > Programming Module

Keyless Entry Module: Service and RepairProgramming Module

PROGRAMMING RKE MODULE

The RKE module is capable of retaining up to 4 different VAC(s) when vehicle battery power is interrupted. Replacement or additional key fobtransmitter VAC(s) (maximum 4) can be programmed into the Body Control Module (BCM). A functional key fob transmitter is required to programthe BCM to accept the new VAC. If a functional key fob transmitter is not available, a scan tool (DRB) can be used to program the BCM.
(1) Using a functional key fob, unlock the vehicle and disarm the Vehicle Theft Alarm

(2) Insert ignition key into the ignition switch.
(3) Switch ignition to RUN position without starting engine.
(4) On a functional key fob, actuate and hold the UNLOCK button for a minimum four seconds (maximum ten seconds).
(5) While holding UNLOCK button, and before ten seconds passes, actuate and release the PANIC button. A single chime will sound to verify that the

RKE module is set to receive the new VAC.

(6) Within 30 seconds of the chime, actuate any key on each new key fob transmitter. After 30 seconds or when ignition switch is turned OF{ the RKE

module will end the programming mode. A single chime will sound to verify that the RKE module will no longer receive additional VAC(s).

(7) When VAC programming is complete, turn OFF ignition switch and verify RKE system operation using each key fob.

NOTE: Only the primary (first two) key fob transmitters will operate the memory seat and mirror systems. If a primary key fob is being replaced, thememory seat and mirror module will require programming. Refer to Group 8R, Power Seats for proper (data link) programming procedure.

> Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module > Component Information > Service and Repair > Programming Module > Page 21

Keyless Entry Module: Service and RepairRemote Keyless Entry Module Replacement

REMOVAL

(1) Remove instrument panel top cover.
(2) Remove screws holding RKE module to instrument panel.
(3) Disconnect wire connector from RKE module.
(4) Remove module.

INSTALLATION

Reverse the preceding operation.

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

Power Door Lock Relay: Locations

Micro Relay Block

> Relays and Modules > Relays and Modules - Body and Frame > Power Door Lock Relay > Component Information > Locations > Page 25

Grand Caravan V6-201 3.3L (1994)

Relay Block

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

ABS Main Relay: Locations

Fig. 19 Engine Compartment Wiring

Mounted on left fender side shield.

> Relays and Modules > Relays and Modules - Brakes and Traction Control > ABS Main Relay > Component Information > Locations > Page 30

ABS Main Relay: Service and Repair

1. Disconnect battery ground cable.2. Disconnect wiring harness electrical connectors from relays, then remove screw securing relay assembly to left front inner fender.3. Reverse procedure to install.

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Brake Fluid Pump Relay > Component Information > Locations

Brake Fluid Pump Relay: Locations

Fig. 19 Engine Compartment Wiring

Mounted on left fender side shield.

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

ABS Module Connector

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Diagrams > Page 37

Electronic Brake Control Module: Description and Operation

(CAB)

The Controller Anti-Lock Brake is located on the front lefthand side of the engine compartment. The CAB uses the information from the wheelspeed sensors to control the anti-lock brake system function. The CAB also monitors ABS operation and detects system faults.

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Diagrams > Page 38

Electronic Brake Control Module: Service and Repair

(CAB)

Do not twist connector.

1. With ignition switch in Off position, disconnect both battery cables and remove battery, then remove battery tray from vehicle.2. Remove Controller Anti-lock Brake from battery tray support bracket.3. Loosen bolt securing 60-way connector to CAB, then disconnect connector from CAB by pulling straight out. 4. Remove CAB with its mounting bracket from vehicle.5. Reverse procedure to install, noting the following:

60

a. Ensure ignition switch is still in Off position before connecting -way connector to CAB.b. connector bolt to inch lbs. and CAB assembly mounting bolt to inch lbs.Torque 38 14

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

Radiator Fan Relay: Locations

Radiator Fan Relay is located in the Power Distribution Center.

> Relays and Modules > Relays and Modules - Cooling System > Radiator Fan Relay <--> [Radiator Cooling Fan Motor Relay] > Component Information > Locations > Page

43

Grand Caravan V6-201 3.3L (1994)

Power Distribution Center

> Relays and Modules > Relays and Modules - Cooling System > Radiator Fan Relay <--> [Radiator Cooling Fan Motor Relay] > Component Information > Locations > Page

44

Grand Caravan V6-201 3.3L (1994)

> Relays and Modules > Relays and Modules - Cooling System > Radiator Fan Relay <--> [Radiator Cooling Fan Motor Relay] > Component Information > Diagrams > Diagram Information and Instructions

Radiator Fan Relay: Diagram Information and Instructions

Connector Information

Connector Identification

Connectors shown in the diagrams are identified using the international standard arrows for male and female terminals. A connector identifier is placednext to the arrows to indicate the connector number.

For viewing connector pin-outs, with two or more terminals, refer to Connector Pin-Outs Index, which identifies the connector by number and providesterminal numbering, circuit identification, wire colors, and functions.

All connectors are viewed from the terminal end unless otherwise specified. To find the connector location in the vehicle, refer to Connector LocationsIndex, which uses the connector identification number from the wiring diagrams to provide a figure number reference.

Splice Location Symbol Identification

Wiring Splice Examples

Splice locations are indicated in the diagrams by a diamond with a splice circuit code within it (example 1). If there is more than one splice percircuit a small box will be connected to it with the splice number in it (example 2).

Locations/Splices

To locate a splice in the wiring harness determine the splice number from the diagrams then refer to . This section shows thegeneral location of the splice in the harness.

> Relays and Modules > Relays and Modules - Cooling System > Radiator Fan Relay <--> [Radiator Cooling Fan Motor Relay] > Component Information > Diagrams >

Diagram Information and Instructions > Page 47

Grand Caravan V6-201 3.3L (1994)

> Relays and Modules > Relays and Modules - Cooling System > Radiator Fan Relay <--> [Radiator Cooling Fan Motor Relay] > Component Information > Diagrams >

Diagram Information and Instructions > Page 48

Grand Caravan V6-201 3.3L (1994)

Symbol Identification

How to Find System & Component Diagrams

Group Index

When trying to find the diagram for a specific component or system, use the information or the under Alphabetic Index to Wiring Diagrams Electrical

Group Index Diagrams By Sheet Number

Whenever a reference exists to another sheet or figure, find the corresponding diagram using the , , or . The reference number for the subsequent diagram will match a listed group shown.Diagrams By Figure Number

Fusible Link Color Code

Vehicle wiring harnesses are equipped with fusible links to protect against harness damage in the event of a short in the system. Fusible links are colorcoded to indicate wire gauge and size. Refer to the fusible link chart for color and gauge identification.

Wire Gauge Color Code Wire Color

12 Ga BK Black
14 Ga RD Red
16 Ga DB Dark Blue
18 Ga GY Gray
20 Ga OR Orange
22 Ga WT White

Main Circuit ID Codes

Main Circuit Identification

All circuits in the diagrams use an alpha/numeric code to identify the wire and its function. To identify which circuit code applies to a system, refer to theCircuit Identification Code Chart. This chart shows the main circuits only and does not show the secondary codes that may apply to some models.

> Relays and Modules > Relays and Modules - Cooling System > Radiator Fan Relay <--> [Radiator Cooling Fan Motor Relay] > Component Information > Diagrams >

Diagram Information and Instructions > Page 49

Grand Caravan V6-201 3.3L (1994)

International Symbol Identification Chart

Wire Color Codes

Black:

BK

Blue:

BL

Brown:

BR

Dark Blue:

DB

Dark Green:

DG

Gray:

GY

Light Blue:

LB

Light Green:

LG

Orange:

OR

Pink:

PK

Red:

RD

Tan:

TN

Violet:

VT

White:

WT

Yellow:

YL

> Relays and Modules > Relays and Modules - Cooling System > Radiator Fan Relay <--> [Radiator Cooling Fan Motor Relay] > Component Information > Diagrams > Diagram Information and Instructions > Page 50

Radiator Fan Relay: Diagnostic Aids

When troubleshooting wiring problems there are six steps which can aid in the procedure. The steps are listed and explained below. Always check fornon-factory items added to the vehicle before doing any diagnosis. If the vehicle is equipped with these items, disconnect them to verify these add-onitems are not the cause of the problem.

1. Verify the problem.

2. Verify any related symptoms. Do this by performing operational checks on components that are in the same circuit. Refer to the wiring diagrams.

3. Analyze the symptoms. Use the wiring diagrams to determine what the circuit is doing, where the problem most likely is occurring and where the
diagnosis will continue.

4. Isolate the problem area.

5. Repair the problem.

6. Verify proper operation. For this step check for proper operation of all items on the repaired circuit. Refer to the wiring diagrams.

> Relays and Modules > Relays and Modules - Cooling System > Radiator Fan Relay <--> [Radiator Cooling Fan Motor Relay] > Component Information > Diagrams > Diagram Information and Instructions > Page 51

Radiator Fan Relay: Electrical Diagrams

> Relays and Modules > Relays and Modules - Cooling System > Radiator Fan Relay <--> [Radiator Cooling Fan Motor Relay] > Component Information > Diagrams >

Diagram Information and Instructions > Page 52

Grand Caravan V6-201 3.3L (1994)

Air Conditioning System (Part 1 Of 4)

Air Conditioning System (Part 2 Of 4)

> Relays and Modules > Relays and Modules - Cooling System > Radiator Fan Relay <--> [Radiator Cooling Fan Motor Relay] > Component Information > Diagrams >

Diagram Information and Instructions > Page 53

Grand Caravan V6-201 3.3L (1994)

Air Conditioning System (Part 3 Of 4)

> Relays and Modules > Relays and Modules - Cooling System > Radiator Fan Relay <--> [Radiator Cooling Fan Motor Relay] > Component Information > Diagrams >

Diagram Information and Instructions > Page 54

Grand Caravan V6-201 3.3L (1994)

Air Conditioning System (Part 4 Of 4)

> Relays and Modules > Relays and Modules - Cooling System > Radiator Fan Relay <--> [Radiator Cooling Fan Motor Relay] > Component Information > Diagrams >

Diagram Information and Instructions > Page 55

Grand Caravan V6-201 3.3L (1994)

Radiator Fan System With Heater

> Relays and Modules > Relays and Modules - Cooling System > Radiator Fan Relay <--> [Radiator Cooling Fan Motor Relay] > Component Information > Diagrams >

Diagram Information and Instructions > Page 56

Grand Caravan V6-201 3.3L (1994)

Heater System

> Relays and Modules > Relays and Modules - HVAC > Blower Motor Relay > Component Information > Description and Operation

Blower Motor Relay: Description and Operation

Chrysler does not use a Blower Motor Relay for these Year/Make/Model Vehicles.

> Relays and Modules > Relays and Modules - HVAC > Compressor Clutch Relay > Component Information > Locations

Compressor Clutch Relay: Locations

Power Distribution Center

> Relays and Modules > Relays and Modules - HVAC > Compressor Clutch Relay > Component Information > Locations > Page 64

Grand Caravan V6-201 3.3L (1994)

In Power Distribution Center

> Relays and Modules > Relays and Modules - HVAC > Compressor Clutch Relay > Component Information > Locations > Page 65

Compressor Clutch Relay: Description and Operation

Power Distribution Center

> Relays and Modules > Relays and Modules - HVAC > Compressor Clutch Relay > Component Information > Locations > Page 66

Grand Caravan V6-201 3.3L (1994)

In Power Distribution Center

PURPOSE

Supplies ground path for A/C compressor clutch.

OPERATION

Controlled by A/C or defrost switch (inside vehicle) and Powertrain Control Module (PCM). Relay receives battery voltage from radiator fan relay, (A/C relay will not energize unless the radiator fan relay is energized).

When A/C or defrost is selected, (turned ON), inside vehicle, and low and high pressure switches are closed, PCM receives an A/C ON signal.PCM then supplies relay ground.
If PCM senses Wide Open Throttle (WOT) or low idle speed condition, it removes relay ground, discontinueing A/C clutch engagement.

PCM delays activation of A/C relay for a specific period after engine start-up.

> Relays and Modules > Relays and Modules - HVAC > Condenser Fan Motor Relay, HVAC > Component Information > Locations

Condenser Fan Motor Relay: Locations

Engine Compartment Components

RH Side Of Engine Compartment

> Relays and Modules > Relays and Modules - HVAC > System Relay, HVAC > Component Information > Locations

Relay Block

> Relays and Modules > Relays and Modules - Instrument Panel > Speedometer Module > Component Information > Technical Service Bulletins > Customer Interest for Speedometer Module: > 080794B > Dec > 94 > A/T -

Harsh Shift At Low Speed/Speedo. Fluctuates

Speedometer Module: Customer InterestA/T - Harsh Shift At Low Speed/Speedo. Fluctuates

NO: 08-07-94 Rev. B
GROUP: Electrical
DATE: Dec. 16, 1994

SUBJECT:Harsh Shifting at Low Speed and/or Digital Speedometer Fluctuates at Idle

THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 08-07-94 REV. A DATED OCT. 21, 1994 WHICH SHOULD BE REMOVEDFROM YOUR FILES. THE REVISION CLARIFIES THE SYMPTOMS, CHANGES THE DIAGNOSIS PROCEDURE, ADDS A NOTE TO THEREPAIR PROCEDURE AND PROVIDES A VEHICLE CLEAN POINT. ALL REVISIONS ARE MARKED WITH **ASTERISKS**.
MODELS:

1993 - 1995 (AS) Town & Country/Caravan/Voyager
1993 - 1995 (ES) Chrysler Voyager (European Market)

NOTE:

THIS BULLETIN APPLIES TO VEHICLES EQUIPPED WITH A 41TE TRANSMISSION AND A 3.3L OR 3.8L ENGINE **AND BUILTPRIOR TO NOV. 1, 1994, MDH 11-11-XX.**

SYMPTOM/CONDITION:

**The transmission may have inconsistent shift quality at vehicle speeds less than 10 MPH. Harsh 1-2 up shifts or 2-1 coast down shifts can randomlyoccur, usually 5-10% of the time. As spark plug wires age, harsh shifting may become more frequent. Also, the DIGITAL speedometer may fluctuateslightly (2 MPH) while the vehicle is parked and the engine is at idle**. These symptoms can be the result of induced voltage between the spark plugwires and the output speed sensor wires. No Diagnostic Trouble Codes (DTC's) are set due to the condition.
DIAGNOSIS:

Using the Mopar Diagnostic System (MDS) or the Scan Tool (DRB II/III), verify that all engine and transmission systems are functioning as designed. IfDiagnostic Trouble Codes (DTC's) are present, record them on the repair order for future reference and repair as necessary before proceeding. If thefluctuating speedometer and/or harsh transmission shift condition is not corrected after repair of any or all DTC'S, continue the diagnosis as follows:

If using the MDS, select EATX State Display/Special Test/RPM Display, then monitor the Output Speed Sensor. With the transmission in **any drivegear and the parking brake and service brakes fully applied (DO NOT ALLOW THE VEHICLE TO MOVE)**, vary the engine speed slowly from idleto 1800 RPM **(DO NOT PERFORM THIS TEST FOR MORE THAN 10 SECONDS AT A TIME)**. If the output speed sensor display does notremain at zero, perform the repair procedure.

If using the DRB II/III, select Transmission Systems/(41TE/State Display DRB II only)/Monitors/RPM Display, then monitor Output RPM. With thetransmission in **any drive gear and the parking brake and service brakes fully applied (DO NOT ALLOW THE VEHICLE TO MOVE)**, vary theengine speed slowly from idle to 1800 RPM **(DO NOT PERFORM THIS TEST FOR MORE THAN 10 SECONDS AT A TIME)**. If the outputRPM does not remain at zero, perform the repair procedure.
PARTS REQUIRED:

1 6004514 Clip Strap
AR 6015756 Tie Strap
AR 4778138 Black Tape MS-CH71A (3/4 in. x 100 ft. roll)

> Relays and Modules > Relays and Modules - Instrument Panel > Speedometer Module > Component Information > Technical Service Bulletins > Customer Interest for

Speedometer Module: > 080794B > Dec > 94 > A/T - Harsh Shift At Low Speed/Speedo. Fluctuates > Page 82

Grand Caravan V6-201 3.3L (1994)

AR 4688708 Aluminum Tape (1 in. x 60 yd. roll)
REPAIR PROCEDURE:

This procedure involves covering the wiring harness near the spark plug wires with aluminum tape to prevent the spark plug wires from inducing falsesignals into the output speed sensor wiring that connects to the Transmission Control Module (TCM).

1. Remove and discard the tie strap holding the wiring harness to the right engine mount.

2.
Remove the wiring clip from the spark plug cable separator bracket and wiring harness. On some 1993 model vehicles, the wiring may be held tothe bracket with a tie strap. If so equipped, remove and discard the tie strap.

3. Remove the wiring clip from the oil dipstick by opening the clip. Do Not remove the clip from the wiring harness or otherwise damage the clip.

4.
Wrap the wiring harness (over the convolute) with aluminum tape, P/N 4688708, using a 25% overlap. Wrap the wiring harness from the oildipstick clip to within 4 in. (100 mm) of the clip at the right engine mount.

**:NOTE

THE TAPES MUST BE APPLIED AS DESCRIBED FOR THE REPAIR TO BE EFFECTIVE.**

5.
Cover the aluminum tape **using a 25% overlap** with black tape MS-CH71A, P/N 4778138. **Triple wrap the harness in the area of the A/Ccompressor high pressure relief valve.**

6. Re-install the wiring harness and clip at the dip stick.

7.
Install a tie strap, P/N 6015756, at the right engine mount with the tie strap going through the wiring clip and through the outboard horizontal holein the engine mount bracket.

8.
Install a clip strap, P/N 6004514, to the engine wiring harness at the spark plug cable separator bracket and plug it onto the bracket. If the vehicleoriginally had the wiring strapped to the spark plug separator bracket, replace the tie strap.

**9. Position the spark plug cables to provide the maximum distance away from the transmission wiring harness.**

> Relays and Modules > Relays and Modules - Instrument Panel > Speedometer Module > Component Information > Technical Service Bulletins > Customer Interest for

Speedometer Module: > 080794B > Dec > 94 > A/T - Harsh Shift At Low Speed/Speedo. Fluctuates > Page 83

Grand Caravan V6-201 3.3L (1994)

10. Repeat the diagnostic procedure to confirm proper Output Speed Sensor/Output RPM values.

NOTE:

IF HARSH SHIFTING CONTINUES TO EXIST, REFER TO TECHNICAL SERVICE BULLETIN **18-27-94 ISSUED IN THE DEC. 30, 1994COMPAK.**

POLICY:Reimbursable within the provisions of the warranty.

TIME ALLOWANCE:Labor Operation No.

08-90-66-98 0.3 Hrs.

FAILURE CODE: XX - Service Adjustment

> Relays and Modules > Relays and Modules - Instrument Panel > Speedometer Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Speedometer Module: > 080794B > Dec >

94 > A/T - Harsh Shift At Low Speed/Speedo. Fluctuates

Speedometer Module: All Technical Service BulletinsA/T - Harsh Shift At Low Speed/Speedo. Fluctuates

NO: 08-07-94 Rev. B
GROUP: Electrical
DATE: Dec. 16, 1994

SUBJECT:Harsh Shifting at Low Speed and/or Digital Speedometer Fluctuates at Idle

THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 08-07-94 REV. A DATED OCT. 21, 1994 WHICH SHOULD BE REMOVEDFROM YOUR FILES. THE REVISION CLARIFIES THE SYMPTOMS, CHANGES THE DIAGNOSIS PROCEDURE, ADDS A NOTE TO THEREPAIR PROCEDURE AND PROVIDES A VEHICLE CLEAN POINT. ALL REVISIONS ARE MARKED WITH **ASTERISKS**.
MODELS:

1993 - 1995 (AS) Town & Country/Caravan/Voyager
1993 - 1995 (ES) Chrysler Voyager (European Market)

NOTE:

THIS BULLETIN APPLIES TO VEHICLES EQUIPPED WITH A 41TE TRANSMISSION AND A 3.3L OR 3.8L ENGINE **AND BUILTPRIOR TO NOV. 1, 1994, MDH 11-11-XX.**

SYMPTOM/CONDITION:

**The transmission may have inconsistent shift quality at vehicle speeds less than 10 MPH. Harsh 1-2 up shifts or 2-1 coast down shifts can randomlyoccur, usually 5-10% of the time. As spark plug wires age, harsh shifting may become more frequent. Also, the DIGITAL speedometer may fluctuateslightly (2 MPH) while the vehicle is parked and the engine is at idle**. These symptoms can be the result of induced voltage between the spark plugwires and the output speed sensor wires. No Diagnostic Trouble Codes (DTC's) are set due to the condition.
DIAGNOSIS:

Using the Mopar Diagnostic System (MDS) or the Scan Tool (DRB II/III), verify that all engine and transmission systems are functioning as designed. IfDiagnostic Trouble Codes (DTC's) are present, record them on the repair order for future reference and repair as necessary before proceeding. If thefluctuating speedometer and/or harsh transmission shift condition is not corrected after repair of any or all DTC'S, continue the diagnosis as follows:

If using the MDS, select EATX State Display/Special Test/RPM Display, then monitor the Output Speed Sensor. With the transmission in **any drivegear and the parking brake and service brakes fully applied (DO NOT ALLOW THE VEHICLE TO MOVE)**, vary the engine speed slowly from idleto 1800 RPM **(DO NOT PERFORM THIS TEST FOR MORE THAN 10 SECONDS AT A TIME)**. If the output speed sensor display does notremain at zero, perform the repair procedure.

If using the DRB II/III, select Transmission Systems/(41TE/State Display DRB II only)/Monitors/RPM Display, then monitor Output RPM. With thetransmission in **any drive gear and the parking brake and service brakes fully applied (DO NOT ALLOW THE VEHICLE TO MOVE)**, vary theengine speed slowly from idle to 1800 RPM **(DO NOT PERFORM THIS TEST FOR MORE THAN 10 SECONDS AT A TIME)**. If the outputRPM does not remain at zero, perform the repair procedure.
PARTS REQUIRED:

1 6004514 Clip Strap
AR 6015756 Tie Strap
AR 4778138 Black Tape MS-CH71A (3/4 in. x 100 ft. roll)

> Relays and Modules > Relays and Modules - Instrument Panel > Speedometer Module > Component Information > Technical Service Bulletins > All Technical Service

Bulletins for Speedometer Module: > 080794B > Dec > 94 > A/T - Harsh Shift At Low Speed/Speedo. Fluctuates > Page 89

Grand Caravan V6-201 3.3L (1994)

AR 4688708 Aluminum Tape (1 in. x 60 yd. roll)
REPAIR PROCEDURE:

This procedure involves covering the wiring harness near the spark plug wires with aluminum tape to prevent the spark plug wires from inducing falsesignals into the output speed sensor wiring that connects to the Transmission Control Module (TCM).

1. Remove and discard the tie strap holding the wiring harness to the right engine mount.

2.
Remove the wiring clip from the spark plug cable separator bracket and wiring harness. On some 1993 model vehicles, the wiring may be held tothe bracket with a tie strap. If so equipped, remove and discard the tie strap.

3. Remove the wiring clip from the oil dipstick by opening the clip. Do Not remove the clip from the wiring harness or otherwise damage the clip.

4.
Wrap the wiring harness (over the convolute) with aluminum tape, P/N 4688708, using a 25% overlap. Wrap the wiring harness from the oildipstick clip to within 4 in. (100 mm) of the clip at the right engine mount.

**:NOTE

THE TAPES MUST BE APPLIED AS DESCRIBED FOR THE REPAIR TO BE EFFECTIVE.**

5.
Cover the aluminum tape **using a 25% overlap** with black tape MS-CH71A, P/N 4778138. **Triple wrap the harness in the area of the A/Ccompressor high pressure relief valve.**

6. Re-install the wiring harness and clip at the dip stick.

7.
Install a tie strap, P/N 6015756, at the right engine mount with the tie strap going through the wiring clip and through the outboard horizontal holein the engine mount bracket.

8.
Install a clip strap, P/N 6004514, to the engine wiring harness at the spark plug cable separator bracket and plug it onto the bracket. If the vehicleoriginally had the wiring strapped to the spark plug separator bracket, replace the tie strap.

**9. Position the spark plug cables to provide the maximum distance away from the transmission wiring harness.**

> Relays and Modules > Relays and Modules - Instrument Panel > Speedometer Module > Component Information > Technical Service Bulletins > All Technical Service

Bulletins for Speedometer Module: > 080794B > Dec > 94 > A/T - Harsh Shift At Low Speed/Speedo. Fluctuates > Page 90

Grand Caravan V6-201 3.3L (1994)

10. Repeat the diagnostic procedure to confirm proper Output Speed Sensor/Output RPM values.

NOTE:

IF HARSH SHIFTING CONTINUES TO EXIST, REFER TO TECHNICAL SERVICE BULLETIN **18-27-94 ISSUED IN THE DEC. 30, 1994COMPAK.**

POLICY:Reimbursable within the provisions of the warranty.

TIME ALLOWANCE:Labor Operation No.

08-90-66-98 0.3 Hrs.

FAILURE CODE: XX - Service Adjustment

> Relays and Modules > Relays and Modules - Lighting and Horns > Backup Lamp Relay > Component Information > Locations

Backup Lamp Relay: Locations

In Power Distribution Center

The Backup Lamp Relay is located in the Power Distribution Box.

> Relays and Modules > Relays and Modules - Lighting and Horns > Backup Lamp Relay > Component Information > Locations > Page 95

Grand Caravan V6-201 3.3L (1994)

Power Distribution Center

As shown, the Backup Lamp Relay is in the bottom row center.

> Relays and Modules > Relays and Modules - Lighting and Horns > Backup Lamp Relay > Component Information > Locations > Page 96

Power Distribution Center

> Relays and Modules > Relays and Modules - Lighting and Horns > Daytime Running Lamp Control Unit > Component Information > Locations

> Relays and Modules > Relays and Modules - Lighting and Horns > Daytime Running Lamp Control Unit > Component Information > Diagrams > Diagram Information and Instructions

Daytime Running Lamp Control Unit: Diagram Information and Instructions

Connector Information

Connector Identification

Connectors shown in the diagrams are identified using the international standard arrows for male and female terminals. A connector identifier is placednext to the arrows to indicate the connector number.

For viewing connector pin-outs, with two or more terminals, refer to Connector Pin-Outs Index, which identifies the connector by number and providesterminal numbering, circuit identification, wire colors, and functions.

All connectors are viewed from the terminal end unless otherwise specified. To find the connector location in the vehicle, refer to Connector LocationsIndex, which uses the connector identification number from the wiring diagrams to provide a figure number reference.

Splice Location Symbol Identification

Wiring Splice Examples

Splice locations are indicated in the diagrams by a diamond with a splice circuit code within it (example 1). If there is more than one splice percircuit a small box will be connected to it with the splice number in it (example 2).

Locations/Splices

To locate a splice in the wiring harness determine the splice number from the diagrams then refer to . This section shows thegeneral location of the splice in the harness.

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Instructions > Page 102

Grand Caravan V6-201 3.3L (1994)