Chrysler Pacifica. Manual — part 916
Symptom List:
P0604-INTERNAL TCM
P0605-INTERNAL TCM
P0613-INTERNAL TCM
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be P0604-INTERNAL TCM.
POSSIBLE CAUSES
PCM - INTERNAL ERROR
TEST
ACTION
APPLICABILITY
1
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.
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TRANSMISSION - NGC
Symptom:
P0706-CHECK SHIFTER SIGNAL
When Monitored and Set Condition:
P0706-CHECK SHIFTER SIGNAL
When Monitored:
Continuously with the ignition on.
Set Condition:
After 3 occurrences in one ignition cycle of an invalid PRNDL DTC which
lasts for more than 0.1 second. Note: All indicator lights on the instrument cluster will
illuminate boxed when the vehicle engine is not running, ignition on or engine running in
park or neutral if a problem exists.
POSSIBLE CAUSES
SHIFTER OUT OF ADJUSTMENT
TRS T1 SENSE CIRCUIT OPEN
TRS T3 SENSE CIRCUIT OPEN
TRS T41 SENSE CIRCUIT OPEN
TRS T42 SENSE CIRCUIT OPEN
TRS T1 SENSE CIRCUIT SHORT TO GROUND
TRS T3 SENSE CIRCUIT SHORT TO GROUND
TRS T41 SENSE CIRCUIT SHORT TO GROUND
TRS T42 SENSE CIRCUIT SHORT TO GROUND
TRS T1 SENSE CIRCUIT SHORT TO VOLTAGE
TRS T3 SENSE CIRCUIT SHORT TO VOLTAGE
TRS T41 SENSE CIRCUIT SHORT TO VOLTAGE
TRS T42 SENSE CIRCUIT SHORT TO VOLTAGE
TRANSMISSION RANGE SENSOR
POWERTRAIN CONTROL MODULE
INTERMITTENT WIRING AND CONNECTORS
29
TRANSMISSION - NGC
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
2
With the DRBIII
t, erase Transmission DTCs.
Cycle the ignition off, then start the vehicle.
Firmly apply the brakes and shift into Overdrive.
NOTE: Vehicle must remain in Overdrive for at least three seconds.
With the brakes firmly applied, shift slowly through all gears (PRNDL) as least three
times, pausing momentarily in each gear.
NOTE: If all the PRNDL lights box individually then the error was cleared.
Shift into park and turn the ignition off to the lock position.
Ignition on, engine not running.
With the DRBIII
t, read Transmission DTCs.
Does the DTC P0706 reset, or do all the PRNDL indicators remain boxed in park or
neutral?
All
Yes
→ Go To 3
No
→ Go To 21
3
With the DRBIII
t, perform the Shift Lever Position Test.
Select the test outcome from the following:
All
Test passes
Test fails with DTC
Test fails without DTC
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P0706-CHECK SHIFTER SIGNAL —
Continued
TEST
ACTION
APPLICABILITY
4
Turn the ignition off to the lock position.
Remove the Starter Relay.
CAUTION: Removal of the Starter Relay is to prevent a Transmission, NO
RESPONSE, condition and disable the starter.
Install the Transmission Simulator, Miller tool #8333 and the Electronic Transmis-
sion Adapter kit 8333-1A.
Ignition on, engine not running.
With the DRBIII
t, perform the Shift Lever Position Test.
When the DRBIII
t instructs you to put the Gear Selector in a particular position,
you must do so using the Transmission Simulator.
The LED for the gear position in question must be illuminated on the Transmission
Simulator, prior to pressing the ENTER key on the DRBIII
t.
Did the Shift Lever Position Test pass?
All
Yes
→ Go To 5
No
→ Go To 6
NOTE: After completion of this procedure, make sure to disconnect the
Transmission Simulator, Miller tool #8333 and FWD adaptor cable kit, Miller
tool #8333-1A and reconnect all connectors.
5
If there are no possible causes remaining, view repair.
All
Repair
Replace the Transmission Range Sensor per the Service Informa-
tion.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.
6
Ignition on, engine not running.
With the DRBIII
t, monitor the TRS Sense circuits on the Input/Output screen - C1
thru C4.
Move the shift lever through all gear positions, pausing momentarily in each gear
position and watch for one of the circuits to not change state.
Pick the one that did not change state.
All
TRS T1 sense (C4)
TRS T3 sense (C3)
TRS T41 sense (C1)
TRS T42 sense (C2)
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P0706-CHECK SHIFTER SIGNAL —
Continued
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