check engine CHRYSLER VOYAGER 2001 Service Manual

TEST ACTION APPLICABILITY
2 Ignition on, engine not running.
With the DRBIIIt, read Transmission Control Module DTC's
Are there any Transmission Control Relay related DTC's P1765, P1767, or P1768
present?All
Ye s®Refer to symptom list and perform the appropriate symptom for
Transmission Control Relay related DTC's.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 3
3 With the DRBIIIt, Check the STARTS SINCE SET counter.
NOTE: This counter only applies to the last DTC set.
Is the STARTS SINCE SET counter for P0750 set at 0?All
Ye s®Go To 4
No®Go To 11
4 Turn the ignition off to the lock position.
CAUTION: Remove the Starter Relay from the IPM. This will prevent the
vehicle from being started in gear.
Install Transmission Simulator, Miller tool #8333 and the FWD Adapter Cable kit,
Miller tool #8333-1.
Ignition on, engine not running.
With the DRBIIIt, actuate the L/R Solenoid.
Monitor the L/R Solenoid LED on the Transmission Simulator #8333.
Did the L/R Solenoid LED on the Transmission Simulator blink on and off during
actuation?All
Ye s®Go To 5
No®Go To 6
5 If there are no possible causes remaining, view repair. All
Repair
Replace the Transmission Solenoid/Pressure switch assembly .
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
6 Turn the ignition off to the lock position.
Disconnect the Transmission Solenoid/Pressure Switch harness connector.
Remove the Transmission Control Relay from the IPM.
Note: Check connectors - Clean/repair as necessary.
Connect a jumper wire between the Fused B+ circuit and the Transmission Control
Relay Output circuit in the Transmission Control Relay connector in the IPM.
Ignition on, engine not running.
Using a 12-volt test light connected to ground, check the Transmission Control Relay
Output circuit in the Solenoid/Pressure Switch Assembly harness connector.
NOTE: The test light must illuminate brightly. Compare the brightness to
that of a direct connection to the battery.
Does the test light illuminate brightly?All
Ye s®Go To 7
No®Repair the Transmission Control Relay Output circuit for an open
or high resistance.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
64
TRANSMISSION
P0750-LR SOLENOID CIRCUIT ÐContinued

TEST ACTION APPLICABILITY
7 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.
Measure the resistance of the L/R Solenoid Control circuit from the TCM harness
connector to the Solenoid/Pressure Switch Assembly harness connector.
Is the resistance above 5.0 ohms?All
Ye s®Repair the L/R Solenoid Control circuit for an open.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 8
8 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.
Measure the resistance between ground and the L/R Solenoid Control circuit.
Is the resistance below 5.0 ohms?All
Ye s®Repair the L/R Solenoid Control circuit for a short to ground.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 9
9 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.
Remove the Transmission Control Relay from the IPM.
Note: Check connectors - Clean/repair as necessary.
Connect a jumper wire between the Fused B+ circuit and the Transmission Control
Relay Output circuit in the Transmission Control Relay connector in the IPM.
Ignition on, engine not running.
Measure the voltage of the L/R Solenoid Control circuit in the TCM harness
connector.
Is the voltage above 0.5 volt?All
Ye s®Repair the L/R Solenoid Control circuit for a short to voltage.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 10
10 If there are no possible causes remaining, view repair. All
Repair
Replace the Transmission Control Module. WITH THE DRBIIIt
PERFORM QUICK LEARN AND REPROGRAM PINION FAC-
TOR.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
11 The conditions necessary to set this DTC are not present at this time.
Using the schematics as a guide, inspect the wiring and connectors specific to this
circuit.
Wiggle the wiring while checking for shorts and open circuits.
Were there any problems found?All
Ye s®Repair as necessary.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Test Complete.
65
TRANSMISSION
P0750-LR SOLENOID CIRCUIT ÐContinued

Symptom:
P0755-2-4 SOLENOID CIRCUIT
When Monitored and Set Condition:
P0755-2-4 SOLENOID CIRCUIT
When Monitored: Initially at power-up, then every 10 seconds thereafter. They will also
be tested immediately after a Gear Ratio or Pressure Switch error is detected.
Set Condition: Three consecutive Solenoid continuity test failures, or one failure if test is
run in response to a Gear Ratio or Pressure Switch error.
POSSIBLE CAUSES
RELATED RELAY DTC'S PRESENT
INTERMITTENT WIRING AND CONNECTORS
TRANSMISSION CONTROL RELAY OUTPUT CIRCUIT OPEN
2-4 SOLENOID CONTROL CIRCUIT OPEN
2-4 SOLENOID CONTROL CIRCUIT SHORT TO GROUND
2-4 SOLENOID CONTROL CIRCUIT SHORT TO VOLTAGE
2-4 SOLENOID
TCM - 2-4 SOLENOID
TEST ACTION APPLICABILITY
1NOTE: Low fluid level can be the cause of many Transmission problems. If
the fluid level is low locate and repair the leak then check and adjust the
fluid level per the Service Information.
NOTE: Always perform diagnostics with a fully charged battery to avoid
false symptoms.
With the DRBIIIt, read the engine DTC's. Check and repair all engine DTC's prior
to performing Transmission Symptom Diagnostics.
With the DRBIIIt, read Transmission DTC's. Record all DTC's and 1 Trip Failures.
NOTE: Diagnose 1 Trip Failures as a fully matured DTC.
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
Repair as necessary.
Perform the Shift Lever Position Test. If the test does not pass, refer to Symptom test
for P0705 Check Shifter Signal.
For Gear Ratio DTC's, check and record all CVI's.
Most DTC's set on start up but some must be set by driving the vehicle such that all
diagnostic monitors have run.
NOTE: Verify flash level of Transmission Control Module. Some problems
are corrected by software upgrades to the Transmission Control Module.
NOTE: Check for applicable TSB's related to the symptom.
Perform this procedure prior to Symptom diagnosis.All
Continue
Go To 2
66
TRANSMISSION

TEST ACTION APPLICABILITY
2 With the DRBIIIt, read Transmission Control Module DTC's
Are there any Transmission Control Relay related DTC's P1765, P1767, or P1768
present?.All
Ye s®Refer to symptom list and perform the appropriate symptom for
Transmission Control Relay related DTC's.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 3
3 With the DRBIIIt, Check the STARTS SINCE SET counter.
NOTE: This counter only applies to the last DTC set.
Is the STARTS SINCE SET counter for P0755 set at 0?All
Ye s®Go To 4
No®Go To 11
4 Turn the ignition off to the lock position.
CAUTION: Remove the Starter Relay from the IPM. This will prevent the
vehicle from being started in gear.
Install Transmission Simulator, Miller tool #8333 and the FWD Adapter Cable kit,
Miller tool #8333-1.
Ignition on, engine not running.
With the DRBIIIt, actuate the 2-4 Solenoid.
Monitor the 2-4 Solenoid LED on the Transmission Simulator, Miller tool #8333
Did the 2-4 Solenoid LED on the Transmission Simulator blink on and off during
actuation?All
Ye s®Go To 5
No®Go To 6
5 If there are no possible causes remaining, view repair. All
Repair
Replace the Transmission Solenoid/Pressure switch assembly.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
6 Turn the ignition off to the lock position.
Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.
Remove the Transmission Control Relay from the IPM.
Note: Check connectors - Clean/repair as necessary.
Connect a jumper wire between the Fused B+ circuit and the Transmission Control
Relay Output circuit in the Transmission Control Relay connector in the IPM.
Ignition on, engine not running.
Using a 12-volt test light connected to ground, check the Transmission Control Relay
Output circuit in the Transmission Solenoid/Pressure Switch Assembly harness
connector.
NOTE: The test light must illuminate brightly. Compare the brightness to
that of a direct connection to the battery.
Does the test light illuminate brightly?All
Ye s®Go To 7
No®Repair the Transmission Control Relay Output circuit for an open
or high resistance.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
67
TRANSMISSION
P0755-2-4 SOLENOID CIRCUIT ÐContinued

TEST ACTION APPLICABILITY
7 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the 2-4 Solenoid Control circuit from the TCM harness
connector to the Solenoid/Pressure Switch Assembly harness connector.
Is the resistance above 5.0 ohms?All
Ye s®Repair the 2-4 Solenoid Control circuit for an open.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 8
8 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the 2-4 Solenoid Control circuit.
Is the resistance below 5.0 ohms?All
Ye s®Repair the 2-4 Solenoid Control circuit for a short to ground.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 9
9 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.
Remove the Transmission Control Relay from the IPM.
Note: Check connectors - Clean/repair as necessary.
Connect a jumper wire between the Fused B+ circuit and Transmission Control Relay
Output circuit in the Transmission Control Relay connector in the IPM.
Ignition on, engine not running.
Measure the voltage of the 2-4 Solenoid Control circuit in the TCM harness
connector.
Is the voltage above 0.5 volt?All
Ye s®Repair the 2-4 Solenoid Control circuit for a short to voltage.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 10
10 If there are no possible causes remaining, view repair. All
Repair
Replace the Transmission Control Module .WITH THE DRBIIIt
PERFORM QUICK LEARN AND REPROGRAM PINION FAC-
TOR.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
11 The conditions necessary to set this DTC are not present at this time.
Using the schematics as a guide, inspect the wiring and connectors specific to this
circuit.
Wiggle the wiring while checking for shorts and open circuits.
Were there any problems found?All
Ye s®Repair as necessary.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Test Complete.
68
TRANSMISSION
P0755-2-4 SOLENOID CIRCUIT ÐContinued

Symptom:
P0760-OD SOLENOID CIRCUIT
When Monitored and Set Condition:
P0760-OD SOLENOID CIRCUIT
When Monitored: Initially at power-up, then every 10 seconds thereafter. They will also
be tested immediately after a Gear Ratio or Pressure Switch error is detected.
Set Condition: Three consecutive solenoid continuity test failures, or one failure if test is
run in response to a Gear Ratio or Pressure Switch error.
POSSIBLE CAUSES
RELATED RELAY DTC'S PRESENT
INTERMITTENT WIRING AND CONNECTORS
TRANSMISSION CONTROL RELAY OUTPUT CIRCUIT OPEN
OD SOLENOID CONTROL CIRCUIT OPEN
OD SOLENOID CONTROL CIRCUIT SHORT TO GROUND
OD SOLENOID CONTROL CIRCUIT SHORT TO VOLTAGE
OD SOLENOID
TCM - OD SOLENOID
TEST ACTION APPLICABILITY
1NOTE: Low fluid level can be the cause of many Transmission problems. If
the fluid level is low locate and repair the leak then check and adjust the
fluid level per the Service Information.
NOTE: Always perform diagnostics with a fully charged battery to avoid
false symptoms.
With the DRBIIIt, read the engine DTC's. Check and repair all engine DTC's prior
to performing Transmission Symptom Diagnostics.
With the DRBIIIt, read Transmission DTC's. Record all DTC's and 1 Trip Failures.
NOTE: Diagnose 1 Trip Failures as a fully matured DTC.
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
Repair as necessary.
Perform the Shift Lever Position Test. If the test does not pass, refer to Symptom test
for P0705 Check Shifter Signal.
For Gear Ratio DTC's, check and record all CVI's.
Most DTC's set on start up but some must be set by driving the vehicle such that all
diagnostic monitors have run.
NOTE: Verify flash level of Transmission Control Module. Some problems
are corrected by software upgrades to the Transmission Control Module.
NOTE: Check for applicable TSB's related to the symptom.
Perform this procedure prior to Symptom diagnosis.All
Continue
Go To 2
69
TRANSMISSION

TEST ACTION APPLICABILITY
2 With the DRBIIIt, read Transmission Control Module DTC's
Are there any Transmission Control Relay related DTC's P1765, P1767, or P1768
present?All
Ye s®Refer to symptom list and perform the appropriate symptom for
the Transmission Control Relay related DTC's.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 3
3 With the DRBIIIt, Check the STARTS SINCE SET counter.
NOTE: This counter only applies to the last DTC set.
Is the STARTS SINCE SET counter for P0760 set at 0?All
Ye s®Go To 4
No®Go To 11
4 Turn the ignition off to the lock position.
CAUTION: Remove the Starter Relay from the IPM. This will prevent the
vehicle from being started in gear.
Install Transmission Simulator, Miller tool #8333 and the FWD Adapter Cable kit,
Miller tool #8333-1.
Ignition on, engine not running.
Monitor the OD Solenoid LED on the Transmission Simulator Miller tool #8333,
With the DRBIIIt, actuate the OD Solenoid.
Did the OD Solenoid LED on the Transmission Simulator blink on and off during
actuation?All
Ye s®Go To 5
No®Go To 6
5 If there are no possible causes remaining, view repair. All
Repair
Replace the Transmission Solenoid/Pressure Switch Assembly.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
6 Turn the ignition off to the lock position.
Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.
Remove the Transmission Control Relay from the IPM.
Note: Check connectors - Clean/repair as necessary.
Connect a jumper wire between the Fused B+ circuit and the Transmission Control
Relay Output circuit in the Transmission Control Relay connector in the IPM.
Ignition on, engine not running.
Using a 12-volt test light connected to ground, check the Transmission Control Relay
Output circuit in the Solenoid/Pressure Switch Assembly harness connector.
NOTE: The test light must illuminate brightly. Compare the brightness to
that of a direct connection to the battery.
Does the test light illuminate brightly?All
Ye s®Go To 7
No®Repair the Transmission Control Relay Output circuit for an open
or high resistance.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
70
TRANSMISSION
P0760-OD SOLENOID CIRCUIT ÐContinued

TEST ACTION APPLICABILITY
7 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the OD Solenoid Control circuit from the TCM harness
connector to the Transmission Solenoid/Pressure Switch Assembly harness connec-
tor.
Is the resistance above 5.0 ohms?All
Ye s®Repair the OD Solenoid Control circuit for an open.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 8
8 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the OD Solenoid Control circuit.
Is the resistance below 5.0 ohms?All
Ye s®Repair the OD Solenoid Control circuit for a short to ground.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 9
9 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.
Remove the Transmission Control Relay from the IPM.
Note: Check connectors - Clean/repair as necessary.
Connect a jumper wire between the Fused B+ circuit and the Transmission Control
Relay Output circuit in the Transmission Control Relay connector in the IPM.
Ignition on, engine not running.
Measure the voltage of the OD Solenoid Control circuit in the TCM harness
connector.
Is the voltage above 0.5 volt?All
Ye s®Repair the OD Solenoid Control circuit for a short to voltage.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 10
10 If there are no possible causes remaining, view repair. All
Repair
Replace the TCM. WITH THE DRBIIItPERFORM QUICK
LEARN AND REPROGRAM PINION FACTOR.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
11 The conditions necessary to set this DTC are not present at this time.
Using the schematics as a guide, inspect the wiring and connectors specific to this
circuit.
Wiggle the wiring while checking for shorts and open circuits.
Were there any problems found?All
Ye s®Repair as necessary.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Test Complete.
71
TRANSMISSION
P0760-OD SOLENOID CIRCUIT ÐContinued

Symptom:
P0765-UD SOLENOID CIRCUIT
When Monitored and Set Condition:
P0765-UD SOLENOID CIRCUIT
When Monitored: Initially at power-up, then every 10 seconds thereafter. They will also
be tested immediately after a Gear Ratio or Pressure Switch error is detected.
Set Condition: Three consecutive Solenoid continuity test failures, or one failure if test is
run in response to a Gear Ratio or Pressure Switch error.
POSSIBLE CAUSES
RELATED RELAY DTC'S PRESENT
INTERMITTENT WIRING AND CONNECTORS
TRANSMISSION RELAY OUTPUT CIRCUIT OPEN
UD SOLENOID CONTROL CIRCUIT OPEN
UD SOLENOID CONTROL CIRCUIT SHORT TO GROUND
UD SOLENOID CONTROL CIRCUIT SHORT TO VOLTAGE
UD SOLENOID
TCM - UD SOLENOID
TEST ACTION APPLICABILITY
1NOTE: Low fluid level can be the cause of many Transmission problems. If
the fluid level is low locate and repair the leak then check and adjust the
fluid level per the Service Information.
NOTE: Always perform diagnostics with a fully charged battery to avoid
false symptoms.
With the DRBIIIt, read the engine DTC's. Check and repair all engine DTC's prior
to performing Transmission Symptom Diagnostics.
With the DRBIIIt, read Transmission DTC's. Record all DTC's and 1 Trip Failures.
NOTE: Diagnose 1 Trip Failures as a fully matured DTC.
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
Repair as necessary.
Perform the Shift Lever Position Test. If the test does not pass, refer to Symptom test
for P0705 Check Shifter Signal.
For Gear Ratio DTC's, check and record all CVI's.
Most DTC's set on start up but some must be set by driving the vehicle such that all
diagnostic monitors have run.
NOTE: Verify flash level of Transmission Control Module. Some problems
are corrected by software upgrades to the Transmission Control Module.
NOTE: Check for applicable TSB's related to the symptom.
Perform this procedure prior to Symptom diagnosis.All
Continue
Go To 2
72
TRANSMISSION

TEST ACTION APPLICABILITY
2 With the DRBIIIt, read Transmission Control Module DTC's
Are there any Transmission Control Relay related DTC's P1765, P1767, or P1768
present?All
Ye s®Refer to symptom list and perform the appropriate symptom for
Transmission Control Relay related DTC's.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 3
3 With the DRBIIIt, Check the STARTS SINCE SET counter.
NOTE: This counter only applies to the last DTC set.
Is the STARTS SINCE SET counter for P0765 set at 0?All
Ye s®Go To 4
No®Go To 11
4 Turn the ignition off to the lock position.
CAUTION: Remove the Starter Relay from the IPM. This will prevent the
vehicle from being started in gear.
Install Transmission Simulator, Miller tool #8333 and the FWD Adapter Cable kit,
Miller tool #8333-1.
Ignition on, engine not running.
With the DRBIIIt, actuate the UD Solenoid.
Monitor the UD Solenoid LED on the Transmission Simulator, Miller tool #8333.
Did the UD Solenoid LED on the Transmission Simulator blink on and off?All
Ye s®Go To 5
No®Go To 6
5 If there are no possible causes remaining, view repair. All
Repair
Replace Transmission Solenoid/Pressure Switch Assembly as re-
quired.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
6 Turn the ignition off to the lock position.
Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.
Remove the Transmission Control Relay from the IPM.
Note: Check connectors - Clean/repair as necessary.
Connect a jumper wire between the Fused B+ circuit and Transmission Control Relay
Output circuit in the Transmission Control Relay connector in the IPM.
Ignition on, engine not running.
Using a 12-volt test light connected to ground, check the Transmission Control Relay
Output circuit in the Transmission Solenoid/Pressure Switch Assembly harness
connector.
NOTE: The test light must illuminate brightly. Compare the brightness to
that of a direct connection to the battery.
Does the test light illuminate brightly?All
Ye s®Go To 7
No®Repair the Transmission Control Relay Output circuit for an open
or high resistance.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
73
TRANSMISSION
P0765-UD SOLENOID CIRCUIT ÐContinued