Chrysler Voyager. Manual — part 507

TEST

ACTION

APPLICABILITY

7

Turn the ignition off to the lock position.
Disconnect the PCM harness connector.
Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.
Note: Check connectors - Clean/repair as necessary.
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.
Measure the resistance between ground and the OD Pressure Switch Sense circuit.
Is the resistance below 5.0 ohms?

All

Yes

→ Repair the OD Pressure Switch Sense circuit for a short to

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

No

→ Go To 8

8

Turn the ignition off to the lock position.
Disconnect the PCM harness connector.
Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.
Remove the Transmission Control Relay.
Note: Check connectors - Clean/repair as necessary.
Connect a jumper wire between the Fused B+ circuit and Transmission Control Relay
Output circuit.
Ignition on, engine not running.
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.
Measure the voltage of the OD Pressure Switch Sense circuit.
Is the voltage above 0.5 volts?

All

Yes

→ Repair the OD Pressure Switch Sense circuit for a short to

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

No

→ Go To 9

9

Turn the ignition off to the lock position.
Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.
Remove the Transmission Control Relay.
Note: Check connectors - Clean/repair as necessary.
Connect a jumper wire between the Fused B+ circuit and Transmission Control Relay
Output circuit.
Using a 12-volt test light connected to ground, check the Transmission Control Relay
Output circuit.
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

Yes

→ Go To 10

No

→ Repair the Transmission Control Relay Output circuit for an

open. If the fuse is open make sure to check for a short to ground.
Perform 41TE (NGC) TRANSMISSION VERIFICATION TEST -
VER 1.

255

TRANSMISSION - NGC

P0871-OD PRESSURE SWITCH SENSE CIRCUIT —

Continued

TEST

ACTION

APPLICABILITY

10

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 Powertrain Control Module per the Service Informa-
tion. WITH THE DRBIII

t PERFORM QUICK LEARN AND

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

11

The conditions necessary to set the 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 and connectors while checking for shorted and open circuits.
With the DRBIII

t, check the EATX EVENT DATA to help identify the conditions in

which the DTC was set.
Were there any problems found?

All

Yes

→ Repair as necessary.

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

No

→ Test Complete.

256

TRANSMISSION - NGC

P0871-OD PRESSURE SWITCH SENSE CIRCUIT —

Continued

Symptom:

P0884-POWER UP AT SPEED

When Monitored and Set Condition:

P0884-POWER UP AT SPEED

When Monitored:

When the Transmission Control Module initially powers up. Note: the

Transmission Control Module is integrated with Powertrain Control Module. The Trans-
mission Control Module has separate powers and grounds specifically to its portion of the
PCM.

Set Condition:

This DTC will set if the TCM powers up and senses the vehicle in a valid

forward gear (no PRNDL DTCs) with a output speed above 800 RPM (approximately
32Km/h or 20 MPH).

POSSIBLE CAUSES

P0884 POWER UP AT SPEED

TEST

ACTION

APPLICABILITY

1

NOTE: 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 DRBIII

t, read Engine DTC’s. Check and repair all Engine DTC’s prior to

performing any transmission symptom diagnostics.
With the DRBIII

t, 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 P0706 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 Powertrain Control Module. Some problems are
corrected by software upgrades to the Transmission and Engine software.
NOTE: Check for applicable TSB’s related to the problem.
Perform this procedure prior to Symptom diagnosis.

All

Continue

Go To

2

257

TRANSMISSION - NGC

TEST

ACTION

APPLICABILITY

2

This DTC is set when the PCM is initialized while the vehicle is moving down the
road in a valid forward gear. This is usually a momentarily loss of power to the
Transmission portion of the PCM.
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.
NOTE: Due to the integration of the Powertrain and Transmission Control
Modules, the transmission part of the PCM has its own specific power and
ground circuits.
Check all of the Fused B+, Fused Ignition Switch Output, and Ground circuits
related to the PCM for an intermittent open or short to ground.
Perform a wiggle test on all wiring and connectors pertaining to the PCM while
looking for shorts and open circuits.
With the DRBIII

t, check the EATX EVENT DATA to help identify the conditions in

which the DTC was set.
If there are no possible causes remaining, view repair.

All

Repair

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

258

TRANSMISSION - NGC

P0884-POWER UP AT SPEED —

Continued