Chrysler Town, Dodge Caravan. Manual — part 662
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Replace the Sentry Key Immobilizer Module in accordance with the Service Infor-
mation.
Turn the ignition on.
Display and erase all PCM and SKIM DTCs.
Perform 5 ignition key cycles leaving the ignition key on for 90 seconds per cycle.
With the DRB, display PCM DTCs.
Does the DRB display the same DTC?
All
Yes
→ Replace and program the PCM in accordance with the Service
Information.
Perform SKIS VERIFICATION.
No
→ Test Complete.
5
WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE
PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.
NOTE: The conditions that set the DTC are not present at this time. The
following list may help in identifying the intermittent condition.
With the engine running and at normal operating temperature, monitor the DRB
parameters related to the DTC while wiggling the wire harness. Look for parameter
values to change and/or a DTC to set.
Review the DTC When Monitored and Set Conditions. If possible, try to duplicate the
conditions under which the DTC was set.
Refer to any Technical Service Bulletins (TSB) that may apply.
Visually inspect the related wire harness. Look for any chafed, pierced, pinched, or
partially broken wires.
Visually inspect the related wire harness connectors. Look for broken, bent, pushed
out, or corroded terminals.
Were any of the above conditions present?
All
Yes
→ Repair as necessary.
Perform SKIS VERIFICATION.
No
→ Test Complete.
456
DRIVEABILITY - NGC
P1686-NO SKIM BUS MESSAGES —
Continued
Symptom:
P1687-NO CLUSTER BUS MESSAGE
When Monitored and Set Condition:
P1687-NO CLUSTER BUS MESSAGE
When Monitored:
Engine Running.
Set Condition:
No BUS messages received from the MIC (Instrument Cluster) for 20
seconds.
POSSIBLE CAUSES
DTC RESET
COMMUNICATE WITH CLUSTER
INSTRUMENT CLUSTER OPERATION
PCM
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, erase DTCs.
Start the engine on and off several times. Leave the engine running for at least 20
second each time.
With the DRBIII
t, read DTCs.
Does the DTC reset?
All
Yes
→ Go To 2
No
→ Refer to the INTERMITTENT CONDITION symptom in the
Driveability category.
Perform POWERTRAIN VERIFICATION TEST VER - 1 - NGC.
2
Ignition on, engine not running.
With the DRBIII
t, attempt to communicate with the Instrument cluster.
Can communication be established with the Instrument Cluster?
All
Yes
→ Go To 3
No
→ Refer to the Communication Category and perform the appropri-
ate symptom related to no communication with cluster.
Perform POWERTRAIN VERIFICATION TEST VER - 1 - NGC.
3
Start the engine
Allow the engine to idle.
Is the correct engine speed display (Tachometer) in the instrument cluster?
All
Yes
→ Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 1 - NGC.
No
→ Refer to the Instrument Category and perform the appropriate
symptom.
Perform POWERTRAIN VERIFICATION TEST VER - 1 - NGC.
457
DRIVEABILITY - NGC
Symptom List:
P1696-EEPROM MEMORY WRITE DENIED/INVALID
P1697-EMR (SRI) MILEAGE NOT STORED
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be P1696-EEPROM MEMORY
WRITE DENIED/INVALID.
When Monitored and Set Condition:
P1696-EEPROM MEMORY WRITE DENIED/INVALID
When Monitored:
Ignition key on continuous.
Set Condition:
An attempt to program/write to the internal EEPROM failed. Also checks
at powerdown.
P1697-EMR (SRI) MILEAGE NOT STORED
When Monitored:
Ignition key on continuous.
Set Condition:
An attempt to program/write to the internal EEPROM failed. Also checks
at powerdown.
POSSIBLE CAUSES
DRB DISPLAYS WRITE FAILURE
DRB DISPLAYS WRITE REFUSED 2ND TIME
DRB DISPLAYS SRI MILEAGE INVALID
COMPARE SRI MILEAGE WITH ODOMETER
TEST
ACTION
APPLICABILITY
1
With the DRBIII
t, perform the SRI Memory Test.
Does the DRBIII
t display Write Failure?
All
Yes
→ Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 1 - NGC.
No
→ Go To 2
2
With the DRBIII
t, perform the SRI Memory Test.
Does the DRBIII
t display Write Refused?
All
Yes
→ Go To 3
No
→ Go To 4
458
DRIVEABILITY - NGC
TEST
ACTION
APPLICABILITY
3
With the DRBIII
t, perform the SRI Memory Test a second time.
NOTE: Retest the SRI Memory two more times.
Does the DRBIII
t display Write Refused again?
All
Yes
→ Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 1 - NGC.
No
→ Test Complete.
4
With the DRBIII
t, perform the SRI Memory Test.
Does the DRBIII
t display SRI Mileage Invalid?
All
Yes
→ Update the mileage and retest the SRI Memory.
Perform POWERTRAIN VERIFICATION TEST VER - 1 - NGC.
No
→ Go To 5
5
Compare the SRI Mileage stored with the Instrument Panel Odometer.
Is the mileage within the specified range displayed on the DRBIII
t?
All
Yes
→ Test Complete.
No
→ Update the mileage and retest the SRI Memory.
Perform POWERTRAIN VERIFICATION TEST VER - 1 - NGC.
459
DRIVEABILITY - NGC
P1696-EEPROM MEMORY WRITE DENIED/INVALID —
Continued
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