ESP CHRYSLER VOYAGER 2001 Manual PDF

Symptom:
*BUS +/- SIGNALS OPEN OR NO RESPONSE FROM POWER LIFT-
GATE MODULE
POSSIBLE CAUSES
BODY CONTROL MODULE - LIFTGATE WAKE UP GROUND OPEN
FUSED B(+) CIRCUIT OPEN
LIFTGATE MODULE WAKE UP SIGNAL WIRE OPEN
LIFTGATE MODULE WAKE UP SIGNAL WIRE SHORT TO VOLTAGE
GROUND CIRCUIT OPEN
LIFTGATE MODULE WAKE UP SIGNAL WIRE SHORT TO GROUND
PCI BUS CIRCUIT OPEN
POWER LIFTGATE MODULE - OPEN
TEST ACTION APPLICABILITY
1Note: Ensure there is PCI Bus communication with other modules on the
vehicle before proceeding. If not, refer to the symptom list from the menu
and repair as necessary.
Disconnect the Power Liftgate Module C1 connector.
Measure the voltage between Fused B(+) circuit and ground.
Is the voltage above 10.0 volts?All
Ye s®Go To 2
No®Repair the Fused B(+) circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
2Note: Ensure there is PCI Bus communication with other modules on the
vehicle before proceeding. If not, refer to the symptom list from the menu
and repair as necessary.
Disconnect the Power Liftgate Module C2 connector.
Using a 12-volt test light connected to 12-volts, check the Ground circuit.
Does the test light illuminate brightly?All
Ye s®Go To 3
No®Repair the Ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
389
COMMUNICATION

TEST ACTION APPLICABILITY
3Note: Ensure there is PCI Bus communication with other modules on the
vehicle before proceeding. If not, refer to the symptom list from the menu
and repair as necessary.
Disconnect the Power Liftgate Module C2 connector.
Use Scope input cable CH7058, Cable to Probe adapter CH7062, and the red and
black test probes.
Connect the scope input cable to the channel one connector on the DRB. Attach the
red and black leads and the cable to probe adapter to the scope input cable.
Select DRB Standalone.
Select lab scope.
Select Live.
Select 12 volt square wave.
Press F2 for Scope.
Press F2 and use the down arrow to set voltage range to 20 volts. Press F2 again
when complete.
Connect the Black lead to the chassis ground. Connect the Red lead to the PCI Bus
circuit in the Power Liftgate Module C2 connector.
Turn the ignition on.
Observe the voltage display on the DRB Lab Scope.
Does the voltage pulse from 0 to approximately 7.5 volts?All
Ye s®Go To 4
No®Repair the PCI Bus circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
4 Disconnect the Power Liftgate Module C2 connector.
Turn the ignition on.
Measure the resistance between ground and the Liftgate Module Wake Up Signal
circuit.
Is the resistance below 50.0 ohms?All
Ye s®Go To 5
No®Go To 8
5 Disconnect the Body Control Module C2 connector.
Disconnect the Power Liftgate Module C2 connector.
Measure the voltage between the Liftgate Module Wake Up Signal circuit and
ground.
Is there any voltage present?All
Ye s®Repair the Liftgate Module Wake Up Signal wire for a short to
voltage.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 6
6 Disconnect the Body Control Module C2 connector.
Disconnect the Power Liftgate Module C2 connector.
Measure the resistance between the Liftgate Module Wake Up Signal circuit and
ground.
Is the resistance below 100.0 ohmsAll
Ye s®Repair the Liftgate Module Wake Up Signal wire for a short to
ground.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 7
390
COMMUNICATION
*BUS +/- SIGNALS OPEN OR NO RESPONSE FROM POWER LIFTGATE
MODULE Ð
Continued

TEST ACTION APPLICABILITY
7 If there are no possible causes remaining, view repair. All
Repair
Replace the Power Liftgate Module.
Perform BODY VERIFICATION TEST - VER 1.
8 Disconnect the Body Control Module C2 connector.
Disconnect the Power Liftgate Module C2 connector.
Measure the resistance of the Liftgate Module Wake Up Signal circuit between the
BCM C2 connector and the Power Liftgate Module C2 connector.
Is the resistance below 5.0 ohmsAll
Ye s®Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
No®Repair the Liftgate Module Wake Up Signal wire for an open.
Perform BODY VERIFICATION TEST - VER 1.
391
COMMUNICATION
*BUS +/- SIGNALS OPEN OR NO RESPONSE FROM POWER LIFTGATE
MODULE Ð
Continued

Symptom:
*BUS +/- SIGNALS OPEN OR NO RESPONSE FROM RIGHT SLID-
ING DOOR CONTROL MODULE
POSSIBLE CAUSES
FUSED B(+) CIRCUIT OPEN
RIGHT SLIDING DOOR WAKE UP SIGNAL WIRE OPEN
RIGHT SLIDING DOOR WAKE UP SIGNAL WIRE SHORT TO VOLTAGE
GROUND CIRCUIT OPEN
RIGHT SLIDING DOOR WAKE UP SIGNAL WIRE SHORT TO GROUND
PCI BUS CIRCUIT OPEN
BODY CONTROL MODULE - RIGHT SLIDING DOOR WAKE UP GROUND OPEN
RIGHT POWER SLIDING DOOR MODULE - OPEN
TEST ACTION APPLICABILITY
1Note: Ensure there is PCI Bus communication with other modules on the
vehicle before proceeding. If not, refer to the symptom list from the menu
and repair as necessary.
Disconnect the Right Sliding Door Control Module C1 connector.
Measure the voltage between Fused B(+) circuit and ground.
Is the voltage above 10.0 volts?All
Ye s®Go To 2
No®Repair the Fused B(+) circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
2Note: Ensure there is PCI Bus communication with other modules on the
vehicle before proceeding. If not, refer to the symptom list from the menu
and repair as necessary.
Disconnect the Right Sliding Door Control Module C1 connector.
Using a 12-volt test light connected to 12-volts, check the Ground circuit.
Does the test light illuminate brightly?All
Ye s®Go To 3
No®Repair the Ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
392
COMMUNICATION

TEST ACTION APPLICABILITY
3Note: Ensure there is PCI Bus communication with other modules on the
vehicle before proceeding. If not, refer to the symptom list from the menu
and repair as necessary.
Disconnect the Right Sliding Door Control Module C2 connector.
Use Scope input cable CH7058, Cable to Probe adapter CH7062, and the red and
black test probes.
Connect the scope input cable to the channel one connector on the DRB. Attach the
red and black leads and the cable to probe adapter to the scope input cable.
Select DRB Standalone.
Select lab scope.
Select Live.
Select 12 volt square wave.
Press F2 for Scope.
Press F2 and use the down arrow to set voltage range to 20 volts. Press F2 again
when complete.
Connect the Black lead to the chassis ground. Connect the Red lead to the PCI Bus
circuit in the Right Sliding Door Control Module C2 connector.
Turn the ignition on.
Observe the voltage display on the DRB Lab Scope.
Does the voltage pulse from 0 to approximately 7.5 volts?All
Ye s®Go To 4
No®Repair the PCI Bus circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
4 Disconnect the Right Sliding Door Control Module C2 connector.
Turn the ignition on.
Measure the resistance between ground and the Right Sliding Door Wake Up Signal
circuit.
Is the resistance below 50.0 ohms?All
Ye s®Go To 5
No®Go To 8
5 Disconnect the Body Control Module C3 connector.
Disconnect the Right Sliding Door Module C2 connector.
Measure the voltage between the Right Sliding Door Wake Up Signal circuit and
ground.
Is there any voltage present?All
Ye s®Repair the Right Sliding Door Wake Up Signal wire for a short to
voltage.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 6
6 Disconnect the Body Control Module C3 connector.
Disconnect the Right Sliding Door Control Module C2 connector.
Measure the resistance between the Right Sliding Door Wake Up Signal circuit and
ground.
Is the resistance below 100.0 ohmsAll
Ye s®Repair the Right Sliding Door Wake Up Signal wire for a short to
ground.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 7
393
COMMUNICATION
*BUS +/- SIGNALS OPEN OR NO RESPONSE FROM RIGHT SLIDING
DOOR CONTROL MODULE Ð
Continued

TEST ACTION APPLICABILITY
7 If there are no possible causes remaining, view repair. All
Repair
Replace the Right Sliding Door Control Module.
Perform BODY VERIFICATION TEST - VER 1.
8 Disconnect the Body Control Module C3 connector.
Disconnect the Right Sliding Door Control Module C2 connector.
Measure the resistance of the Right Sliding Door Wake Up Signal circuit between the
BCM C3 connector and the Right Sliding Door Control Module C2 connector.
Is the resistance below 5.0 ohmsAll
Ye s®Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
No®Repair the Right Sliding Door Wake Up Signal wire for an open.
Perform BODY VERIFICATION TEST - VER 1.
394
COMMUNICATION
*BUS +/- SIGNALS OPEN OR NO RESPONSE FROM RIGHT SLIDING
DOOR CONTROL MODULE Ð
Continued

Symptom:
*BUS +/- SIGNALS OPEN OR NO RESPONSE FROM THATCHAM
ALARM MODULE
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH THE BCM
GROUND CIRCUIT OPEN
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
OPEN PCI BUS CIRCUIT
THATCHAM ALARM MODULE
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRB, enter Body then Body Computer.
Was the DRB able to I/D or communicate with the BCM?All
Ye s®Go To 2
No®Refer to the symptom list for problems related to no communica-
tion with the BCM.
Perform BODY VERIFICATION TEST - VER 1.
2 Turn the ignition off.
Disconnect the RKE Module 6-way harness connector.
Measure the resistance between ground and the ground circuit.
Is the resistance below 5.0 ohms?All
Ye s®Go To 3
No®Repair the Ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
3 Turn the ignition off.
Disconnect the Thatcham Alarm Module C1 harness connector.
Turn the ignition on.
Using a 12-volt test light connected to ground, probe the Fused Ignition Switch
Output circuit.
Is the test light illuminated?All
Ye s®Go To 4
No®Repair the Fused Ignition Switch Output circuit for an open or
short.
Perform BODY VERIFICATION TEST - VER 1.
395
COMMUNICATION

TEST ACTION APPLICABILITY
4Note: Ensure there is PCI Bus communication with other modules on the
vehicle before proceeding. If not, refer to the symptom list from the menu
and repair as necessary.
Disconnect the Thatcham Alarm Module C1 harness connector.
Use Scope input cable CH7058, Cable to Probe adapter CH7062, and the red and
black test probes.
Connect the scope input cable to the channel one connector on the DRB. Attach the
red and black leads and the cable to probe adapter to the scope input cable.
With the DRBIIItselect Pep Module Tools.
Select lab scope.
Select Live Data.
Select 12 volt square wave.
Press F2 for Scope.
Press F2 and use the down arrow to set voltage range to 20 volts. Press F2 again
when complete.
Connect the Black lead to the chassis ground. Connect the Red lead to the PCI Bus
circuit in the Thatcham Alarm Module connector.
Turn the ignition on.
Observe the voltage display on the DRB Lab Scope.
Does the voltage pulse from 0 to approximately 7.5 volts?All
Ye s®Go To 5
No®Repair the PCI Bus circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
5 If there are no possible causes remaining, view repair. All
Repair
Replace the Thatcham Alarm Module in accordance with the
service information.
Perform BODY VERIFICATION TEST - VER 1.
396
COMMUNICATION
*BUS +/- SIGNALS OPEN OR NO RESPONSE FROM THATCHAM ALARM
MODULE Ð
Continued

Symptom:
*NO RESPONSE FROM CABIN HEATER ASSIST - DIESEL ONLY
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH THE ECM
FUSED B+ CIRCUIT OPEN
GROUND CIRCUIT OPEN
SCI TRANSMIT CIRCUIT OPEN
CABIN HEATER ASSIST
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRB, attempt to communicate with the ECM.
Was the DRB able to I/D or communicate with the ECM?All
Ye s®Go To 2
No®Refer to the symptom list for problems related to no communica-
tion with the ECM.
Perform CABIN HEATER VERIFICATION TEST - VER 1.
2 Turn the ignition off.
Disconnect the Cabin Heater Assist C2 harness connector.
Using a 12-volt test light connected to ground, probe the Fused B+ circuit.
Is the test light illuminated?All
Ye s®Go To 3
No®Check the IPM Fuse #15 for an open. If open, check for a short to
ground on the Fused B+ circuit. If not open, repair the Fused B+
circuit for an open.
Perform CABIN HEATER VERIFICATION TEST - VER 1.
3 Turn the ignition off.
Disconnect the Cabin Heater Assist C2 harness connector.
Measure the resistance between ground and the ground circuit.
Is the resistance below 5.0 ohms?All
Ye s®Go To 4
No®Repair the ground circuit for an open.
Perform CABIN HEATER VERIFICATION TEST - VER 1.
4 Turn the ignition off.
Disconnect the Cabin Heater Assist C1 harness connector.
Disconnect the DRB from the DLC.
Measure the resistance of the SCI Transmit circuit between the Cabin Heater Assist
connector and the DLC.
Is the resistance below 5.0 ohms?All
Ye s®Go To 5
No®Repair the SCI Transmit circuit for an open.
Perform CABIN HEATER VERIFICATION TEST - VER 1.
397
COMMUNICATION

TEST ACTION APPLICABILITY
5 If there are no possible causes remaining, view repair. All
Repair
Replace the Cabin Heater Assist in accordance with the service
information.
Perform CABIN HEATER VERIFICATION TEST - VER 1.
398
COMMUNICATION
*NO RESPONSE FROM CABIN HEATER ASSIST - DIESEL ONLY Ð
Continued