Chrysler Voyager. Manual — part 247

TEST

ACTION

APPLICABILITY

6

Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Using a 12-volt test light connected to 12-volts, check each ground 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 at all the ground circuits?

All

Yes

→ Go To 7

No

→ Repair the Ground circuit(s) for an open. Check the main ground

connection to engine block and/or chassis. Refer to the wiring
diagrams located in the Service Information.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.

7

Note: 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 TCM 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 DRBIII

t select 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. Set Probe to x10.
Press F2 again when complete.
Connect the Black lead to the chassis ground. Connect the Red lead to the PCI Bus
circuit in the TCM 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

Yes

→ Go To 8

No

→ Repair the PCI Bus circuit for an open.

Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.

8

Using the schematics as a guide, inspect the wiring and connectors. Repair as
necessary. Pay particular attention to all power and ground circuits.
If there are no possible causes remaining, view repair.

All

Repair

Replace the Transmission Control Module in accordance with the
service information. WITH THE DRBIII

t PERFORM QUICK

LEARN AND REPROGRAM PINION FACTOR.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.

415

COMMUNICATION

*NO RESPONSE FROM TRANSMISSION CONTROL MODULE - EATX —

Continued

Symptom:

*NO RESPONSE FROM TRANSMISSION CONTROL MODULE - NGC

POSSIBLE CAUSES

NO RESPONSE FROM TRANSMISSION CONTROL MODULE

FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN

FUSED B(+) CIRCUIT OPEN

GROUND CIRCUIT(S) OPEN

PCI BUS CIRCUIT OPEN

POWERTRAIN CONTROL MODULE

TEST

ACTION

APPLICABILITY

1

Turn the ignition on.
Note: As soon as one or more module communicates with the DRB, answer
the question.
With the DRB, attempt to communicate with the Instrument Cluster.
With the DRB, attempt to communicate with the Airbag Control Module.
Was the DRB able to I/D or establish communications with both of the modules?

All

Yes

→ Go To 2

No

→ Refer to the Communications category and perform the appropri-

ate symptom.
Perform 41TE (NGC) TRANSMISSION VERIFICATION TEST -
VER 1.

2

Turn the ignition off.
Disconnect the PCM harness connectors.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Turn the ignition on.
Using a 12-volt test light connected to ground, probe both Fused Ignition Switch
Output circuits (cavs 11 and 12) in the appropriate terminal of special tool #8815.
NOTE: The test light must illuminate brightly. Compare the brightness to
that of a direct connection to the battery.
Is the test light illuminated for both circuits?

All

Yes

→ Go To 3

No

→ Repair the Fused Ignition Switch Output circuit for an open.

Refer to the wiring diagrams located in the Service Information.
Perform 41TE (NGC) TRANSMISSION VERIFICATION TEST -
VER 1.

416

COMMUNICATION

TEST

ACTION

APPLICABILITY

3

Turn the ignition off.
Disconnect the PCM harness connectors.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Using a 12-volt test light connected to ground, probe the Fused B(+) circuit in the
appropriate terminal of special tool #8815.
NOTE: The test light must illuminate brightly. Compare the brightness to
that of a direct connection to the battery.
Is the test light illuminated?

All

Yes

→ Go To 4

No

→ Repair the Fused B(+) circuit for an open. Refer to the wiring

diagrams located in the Service Information.
Perform 41TE (NGC) TRANSMISSION VERIFICATION TEST -
VER 1.

4

Turn the ignition off.
Disconnect the PCM harness connectors.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Using a 12-volt test light connected to 12-volts, probe each ground circuit in the
appropriate terminal of special tool #8815.
NOTE: The test light must illuminate brightly. Compare the brightness to
that of a direct connection to the battery.
Is the light illuminated at all ground circuits?

All

Yes

→ Go To 5

No

→ Repair the Ground circuit(s) for an open. Check the main ground

connection to engine block and/or chassis. Refer to the wiring
diagrams located in the Service Information.
Perform 41TE (NGC) TRANSMISSION VERIFICATION TEST -
VER 1.

417

COMMUNICATION

*NO RESPONSE FROM TRANSMISSION CONTROL MODULE - NGC —

Continued

TEST

ACTION

APPLICABILITY

5

Note: 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 PCM harness connectors.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
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 DRBIII

t select 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. Set Probe to x10.
Press F2 again when complete.
Connect the Black lead to the chassis ground. Connect the Red lead to the PCI Bus
circuit in the appropriate terminal of special tool #8815.
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

Yes

→ Go To 6

No

→ Repair the PCI Bus circuit for an open.

Perform 41TE (NGC) TRANSMISSION VERIFICATION TEST -
VER 1.

6

Using the schematics as a guide, inspect the wiring and connectors. Repair as
necessary. Pay particular attention to all power and ground circuits.
If there are no possible causes remaining, view repair.

All

Repair

Replace and program the Powertrain Control Module in accor-
dance with the service information. WITH THE DRBIII

t PER-

FORM QUICK LEARN AND REPROGRAM PINION FACTOR.
Perform 41TE (NGC) TRANSMISSION VERIFICATION TEST -
VER 1.

418

COMMUNICATION

*NO RESPONSE FROM TRANSMISSION CONTROL MODULE - NGC —

Continued