Diagnostic Test

1) SCAN TOOL DISPLAYS A WRITE FAILURE

Fig 1: SCAN TOOL (STARSCAN)
Courtesy of DAIMLERCHRYSLER CORP.

With a scan tool, perform the SRI Memory Test.

Does scan tool display Write Failure?

Yes
1. Replace and program the Powertrain Control Module. Refer to MODULE-POWERTRAIN CONTROL .
2. Perform NGC POWERTRAIN VERIFICATION TEST VER - 1 .
No
1. Go To step 2).
2) SCAN TOOL DISPLAYS A WRITE REFUSED
With the a scan tool, perform the SRI Memory Test.

Does the scan tool display Write Refused?

Yes
1. Go To step 3).
No
1. Go To step 4).
3) PCM REFUSED 2ND TEST
With a scan tool, perform the SRI Memory Test a third time.

NOTE: Retest the SRI Memory two more times.

Does the scan tool display Write Refused again?

Yes
1. Replace and program the Powertrain Control Module. Refer to MODULE-POWERTRAIN CONTROL .
2. Perform NGC POWERTRAIN VERIFICATION TEST VER - 1 .
No
1. Test Complete.
4) SCAN TOOL DISPLAYS SRI MILEAGE INVALID
With a scan tool, perform the SRI Memory Test.

Does the scan tool display SRI Mileage Invalid?

Yes
1. Update the mileage and retest the SRI Memory.
2. Perform NGC POWERTRAIN VERIFICATION TEST VER - 1 .
No
1. Go To step 5).
5) COMPARE SRI MILEAGE WITH ODOMETER
Compare the SRI Mileage stored with the Instrument Panel Odometer.

Is the mileage within the specified range displayed on the scan tool?

Yes
1. Test Complete.
No
1. Update the mileage and retest the SRI Memory.
2. Perform NGC POWERTRAIN VERIFICATION TEST VER - 1 .