Chrysler RG Voyager. Manual — part 1318
TEST
ACTION
APPLICABILITY
6
Turn the ignition off to the lock position.
Replace the AutoStick Switch per the Service Information.
Ignition on, engine not running.
With the DRBIII
t, erase Transmission DTCs.
In AutoStick mode, perform multiple AutoStick upshifts and downshifts.
With the DRBIII
t, read Transmission DTCs.
Does the DTC return?
All
Yes
→ Go To 7
No
→ Test Complete.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.
7
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 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.
8
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 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.
No
→ Test Complete.
273
TRANSMISSION - NGC
P0953-AUTOSTICK INPUT CIRCUIT HIGH —
Continued
Symptom:
P0992-2-4/OD HYDRAULIC PRESSURE TEST FAILURE
When Monitored and Set Condition:
P0992-2-4/OD HYDRAULIC PRESSURE TEST FAILURE
When Monitored:
In any forward gear with engine speed above 1000 RPM shortly after
a shift and every minute thereafter.
Set Condition:
After a shift into a forward gear, with engine speed >1000 RPM, the PCM
momentarily turns on element pressure to the clutch circuits that don’t have pressure to
identify the correct pressure switch closes. If the pressure switch does not close 2 times, the
DTC sets.
POSSIBLE CAUSES
CONDITION P0992 PRESENT
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
274
TRANSMISSION - NGC
TEST
ACTION
APPLICABILITY
2
NOTE: The vehicle must be driven to set this DTC. The transmission must be
warm or hot with the Engine RPM above 1000 RPM.
This DTC is an indication of both the 2/4 and the O/D Hydraulic Pressure Switch
DTCs present.
Perform diagnostics for both P0870 and P0845 to determine which switch is the cause
of the DTC.
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
Refer to the Transmission category and perform the symptoms for
P0845 and P0870.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.
275
TRANSMISSION - NGC
P0992-2-4/OD HYDRAULIC PRESSURE TEST FAILURE —
Continued
Symptom:
P1652-SERIAL COMMUNICATION LINK MALFUNCTION
When Monitored and Set Condition:
P1652-SERIAL COMMUNICATION LINK MALFUNCTION
When Monitored:
Continuously with engine running.
Set Condition:
The DTC sets in approximately 20 seconds if no BUS messages are
received by the TCM. Note: Due to the integration of the Powertrain and Transmission
Control Modules, bus communication between the modules is internal.
POSSIBLE CAUSES
ENGINE COMMUNICATION DTCS PRESENT
POWERTRAIN CONTROL MODULE
INTERMITTENT WIRING AND CONNECTORS
TEST
ACTION
APPLICABILITY
1
Ignition on, engine not running.
With the DRBIII
t, read Engine DTC’s.
Are there any Engine Communication DTC’s present?
All
Yes
→ Refer to the Powertrain category and perform the appropriate
symptom.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.
No
→ Go To 2
2
With the DRBIII
t, erase Transmission DTC’s.
Start the Engine in Park.
With the DRBIII
t, read Transmission DTCs.
NOTE: The Engine must run for at least 20 seconds to reset this DTC.
Did the DTC reset after the engine was started?
All
Yes
→ Go To 3
No
→ Go To 4
3
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. WITH THE DRBIII
t
PERFORM QUICK LEARN AND REPROGRAM PINION FAC-
TOR.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.
276
TRANSMISSION - NGC
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