check engine CHRYSLER VOYAGER 2001 Service Manual

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 UD 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 UD 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 UD Solenoid Control circuit.
Is the resistance below 5.0 ohms?All
Ye s®Repair the UD 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.
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.
Note: Check connectors - Clean/repair as necessary.
Measure the voltage of the UD Solenoid Control circuit in the TCM harness
connector.
Is the voltage above 0.5 volt?All
Ye s®Repair the UD 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.
74
TRANSMISSION
P0765-UD SOLENOID CIRCUIT ÐContinued

Symptom:
P1714-LOW BATTERY VOLTAGE
When Monitored and Set Condition:
P1714-LOW BATTERY VOLTAGE
When Monitored: With the engine running and the TCM has closed the Transmission
Control Relay.
Set Condition: If battery voltage at TCM Transmission Control Relay Output Sense
circuit is less than 10.0 volts for 15 seconds. *P-1714 generally indicates a gradually falling
battery voltage or resistive connections to the TCM.
POSSIBLE CAUSES
RELATED CHARGING SYSTEM DTCS
INTERMITTENT WIRING AND CONNECTORS
FUSED IGNITION SWITCH OUTPUT ( RUN/START) CIRCUIT OPEN
FUSED IGNITION SWITCH OUTPUT (START) CIRCUIT OPEN
GROUND CIRCUIT OPEN
FUSED B+ CIRCUIT
TRANS CONTROL RELAY OUTPUT TO TCM HIGH RESISTANCE
TCM - LOW BATTERY VOLTAGE
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
75
TRANSMISSION

TEST ACTION APPLICABILITY
2 With the DRBIIIt, read the PCM DTC's.
Are any Charging System related DTC's stored in the PCM?All
Ye s®Refer to the Charging System category and repair any PCM
Charging System DTC's, before testing DTC P1714.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 3
3 With the DRBIIIt, read Transmission DTC's.
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 P1714 set at 0?All
Ye s®Go To 4
No®Go To 10
4 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Note: Check connectors - Clean/repair as necessary.
Ignition on, engine not running.
Using a 12-volt test light connected to ground, check the Fused Ignition Switch
Output circuit in the TCM 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 5
No®Repair the Fused Ignition Switch Output (Run/Start) circuit for
an open or high resistance.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
5 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Remove the Starter Relay from the IPM.
Turn the ignition switch to the start position.
Using a 12-volt test light connected to ground, check the Fused Ignition Switch
Output (Start) circuit in the TCM 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 6
No®Repair the Fused Ignition Switch Output (Start) circuit for an
open or high resistance. If the fuse is open make sure to check for
a short to ground.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
Note: Reinstall the Starter Relay.
76
TRANSMISSION
P1714-LOW BATTERY VOLTAGE ÐContinued

TEST ACTION APPLICABILITY
6 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Note: Check connectors - Clean/repair as necessary.
Using a 12-volt test light connected to 12-volts, check the ground circuits in the TCM
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 at all ground circuits?All
Ye s®Go To 7
No®Repair the Ground circuit(s) for an open or high resistance.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
7 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Note: Check connectors - Clean/repair as necessary.
Ignition on, engine not running.
Using a 12-volt test light connected to ground, check the Fused B+ circuit in the TCM
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 8
No®Repair the Fused B+ circuit for an open or high resistance. If the
fuse is open make sure to check for a short to ground.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
8 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Note: Check connectors - Clean/repair as necessary.
Ignition on, engine not running.
Using a 12-volt test light connected to ground, check both Transmission Control
Relay Output circuits in the TCM 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 9
No®Repair the Transmission Control Relay Output circuit for an open
or high resistance.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
9 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.
77
TRANSMISSION
P1714-LOW BATTERY VOLTAGE ÐContinued

Symptom:
P1716-BUS COMMUNICATION WITH PCM
When Monitored and Set Condition:
P1716-BUS COMMUNICATION WITH PCM
When Monitored: Continuously with ignition key on.
Set Condition: If no bus messages are received from the Powertrain Control Module for
10 seconds.
POSSIBLE CAUSES
NO COMMUNICATION WITH PCM
OTHER BUS PROBLEMS PRESENT
INTERMITTENT WIRING AND CONNECTORS
TCM - BUS COMMUNICATION
TEST ACTION APPLICABILITY
1 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 equal to zero?All
Ye s®Go To 2
No®Go To 5
2 Ignition on, engine not running.
With the DRBIIIt, attempt to communicate with the Powertrain Control Module
(PCM).
Can the DRBIIItcommunicate with the PCM?All
Ye s®Go To 3
No®Refer to symptom list for problems related to No Response From
PCM.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
3 With the DRBIIIt, check all of the other modules on the vehicle for evidence of a
vehicle bus problem.
Bus related DTC's in other modules point to an overall vehicle bus problem. Other
symptoms such as a customer complaint of intermittent operation of bus controlled
features also indicate a bus problem.
Does the PRNDL display indicate9No Bus9or is there any evidence of an overall
vehicle bus problem?All
Ye s®Refer to the Communications category for the related symp-
tom(s).
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 4
79
TRANSMISSION

TEST ACTION APPLICABILITY
4 Ignition on, engine not running.
With the DRBIIIt, erase TCM DTC's.
Start the engine in park.
With the DRBIIIt, read Transmission DTC's.
Did the DTC, P1716, return?All
Ye s®Replace the TCM. WITH THE DRBIIItPERFORM QUICK
LEARN AND REPROGRAM PINION FACTOR.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 5
5 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.
80
TRANSMISSION
P1716-BUS COMMUNICATION WITH PCM ÐContinued

Symptom:
P1717-NO COMMUNICATION WITH THE MIC
When Monitored and Set Condition:
P1717-NO COMMUNICATION WITH THE MIC
When Monitored: Continuously with engine running.
Set Condition: The code sets in approximately 25 seconds if no BUS messages are
received form the MIC.
POSSIBLE CAUSES
OTHER BUS PROBLEMS PRESENT
INTERMITTENT WIRING AND CONNECTORS
MIC - NO COMMUNICATION
TCM - BUS COMMUNICATION
TEST ACTION APPLICABILITY
1 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 equal to zero?All
Ye s®Go To 2
No®Go To 5
2 With the DRBIIIt, check all of the other modules on the vehicle for evidence of a
vehicle bus problem.
Bus related DTC's in other modules point to an overall vehicle bus problem. Other
symptoms such as a customer complaint of intermittent operation of bus controlled
features also indicate a bus problem.
Does the PRNDL display indicate9No Bus9or is there any evidence of an overall
vehicle bus problem?All
Ye s®Refer to the Communications category for the related symp-
tom(s).
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 3
3 Ignition on, engine not running.
With the DRBIIIt, clear all DTC's.
Start the engine in park.
With the DRBIIIt, read the MIC DTC's.
Can the DRBIIItcommunicate with the MIC?All
Ye s®Go To 4
No®Refer to the communication category and perform symptoms
related for No Response to MIC.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
81
TRANSMISSION

TEST ACTION APPLICABILITY
4 Ignition on, engine not running.
With the DRBIIIt, erase TCM DTC's.
Start the engine in park.
With the DRBIIIt, read Transmission DTC's.
Is the DTC, P1717- No Communication with the MIC, present?All
Ye s®Replace the TCM. WITH THE DRBIIItPERFORM QUICK
LEARN AND REPROGRAM PINION FACTOR.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Test Complete.
5 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.
82
TRANSMISSION
P1717-NO COMMUNICATION WITH THE MIC ÐContinued

Symptom:
P1738-HIGH TEMPERATURE OPERATION ACTIVATED
When Monitored and Set Condition:
P1738-HIGH TEMPERATURE OPERATION ACTIVATED
When Monitored: Whenever the engine is running.
Set Condition: Immediately when the Overheat shift schedule is activated (240 degrees
Trans oil temp).
POSSIBLE CAUSES
ENGINE COOLING SYSTEM MALFUNCTION
INCORRECT FLUID LEVEL
TRANSMISSION OIL COOLER PLUGGED
HIGH TEMPERATURE OPERATIONS ACTIVATED
TEST ACTION APPLICABILITY
1 Perform Engine Cooling System diagnostics per Service Information
Is the engine cooling system functioning properly?All
Ye s®Go To 2
No®Repair cause of engine overheating. Refer to Service Information
for additional repair information.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
2 Check the Transmission Fluid level per the Service Information.
Is the Transmission Fluid Level at the proper level?All
Ye s®Go To 3
No®Repair any Transmission Fluid leak as necessary and adjust the
Transmission Fluid Level in accordance with the Service Infor-
mation.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
3 Perform Cooler Flow Check per Service Information.
Did the cooler flow test pass?All
Ye s®Go To 4
No®Repair cause of plugged Transmission Oil Cooler. Flush or replace
Transmission Oil Cooler(s) as necessary per Service Information.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
83
TRANSMISSION

Symptom:
P1765-SWITCHED BATTERY
When Monitored and Set Condition:
P1765-SWITCHED BATTERY
When Monitored: Ignition key is turned from the OFF position to RUN position and/or
ignition key is turned from the CRANK position to RUN position.
Set Condition: This DTC is set if the Transmission Control Module senses voltage on any
of the Pressure Switch Inputs prior to the TCM energizing the Transmission Control Relay.
POSSIBLE CAUSES
INTERMITTENT WIRING AND CONNECTORS
2-4 PRESSURE SWITCH SENSE CIRCUIT SHORT TO VOLTAGE
L/R PRESSURE SWITCH SENSE CIRCUIT SHORT TO VOLTAGE
OD PRESSURE SWITCH SENSE CIRCUIT SHORT TO VOLTAGE
TCM - SWITCHED BATTERY
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
2 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 P1765 set at 0?All
Ye s®Go To 3
No®Go To 7
86
TRANSMISSION