Chrysler Pacifica. Manual — part 941
TEST
ACTION
APPLICABILITY
7
If there are no possible causes remaining, view repair.
All
Repair
Replace the Transmission Oil Pump per the Service Information.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.
128
TRANSMISSION - NGC
P0944-LOSS OF PRIME —
Continued
Symptom:
P0952-AUTOSTICK INPUT CIRCUIT LOW
When Monitored and Set Condition:
P0952-AUTOSTICK INPUT CIRCUIT LOW
When Monitored:
Whenever the engine is running.
Set Condition:
The transmission is not in the Autostick position and the upshift or
downshift is reporting closed - below 0.3 volts or if both switches are reported closed at the
same time.
POSSIBLE CAUSES
AUTOSTICK
t SWITCH
AUTOSTICK
t DOWNSHIFT SENSE CIRCUIT SHORT TO GROUND
AUTOSTICK
t UPSHIFT SENSE CIRCUIT SHORT TO GROUND
POWERTRAIN CONTROL MODULE
INTERMITTENT WIRING AND CONNECTORS
TEST
ACTION
APPLICABILITY
1
With the DRBIII
t, Check the STARTS SINCE SET counter for P0951.
Note: This counter only applies to the last DTC set.
Is the Starts Since Set counter set at 0?
All
Yes
→ Go To 2
No
→ Go To 6
2
Turn the ignition off to the lock position.
Disconnect the AutoStick
t Switch harness connector.
Note: Check connectors - Clean/repair as necessary.
Ignition on, engine not running.
Measure the voltage of both the AutoStick
t Upshift and Downshift sense circuits.
Is the voltage above 5.0 volts on both circuits?
All
Yes
→ Replace the AutoStickt Switch per the Service Information.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.
No
→ Go To 3
129
TRANSMISSION - NGC
TEST
ACTION
APPLICABILITY
3
Turn the ignition off to the lock position.
Disconnect the PCM harness connector.
Disconnect the AutoStick
t Switch 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 AutoStick
t Downshift Sense circuit.
Is the resistance below 5.0 ohms?
All
Yes
→ Repair the AutoStickt Downshift Sense circuit for a short to
ground.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.
No
→ Go To 4
4
Turn the ignition off to the lock position.
Disconnect the PCM harness connector.
Disconnect the AutoStick
t Switch 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 AutoStick
t Upshift Sense circuit.
Is the resistance below 5.0 ohms?
All
Yes
→ Repair the AutoStickt Upshift Sense circuit for a short to ground.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.
No
→ Go To 5
5
Ignition on, engine not running.
With the DRBIII
t display the AutoStickt Switch status.
Shift into AutoStick
t.
Push the shift lever to the right several times to actuate the AutoStick
t Upshift
Switch and then to the left several times to actuate the AutoStick
t Downshift Switch.
Do both AutoStick
t Upshift and Downshift Switch states toggle?
All
Yes
→ Test Complete.
No
→ Replace the Powertrain Control Module per the Service Informa-
tion. WITH THE DRBIII
t PERFORM QUICK LEARN AND
REPROGRAM PINION FACTOR.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.
130
TRANSMISSION - NGC
P0952-AUTOSTICK INPUT CIRCUIT LOW —
Continued
TEST
ACTION
APPLICABILITY
6
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 wires while checking 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.
Were there any problems found?
All
Yes
→ Repair as necessary.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.
No
→ Test Complete.
131
TRANSMISSION - NGC
P0952-AUTOSTICK INPUT CIRCUIT LOW —
Continued
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