P1679

P1679-CALIBRATION NOT LEARNED

For a complete wiring diagram refer to Diagrams/Electrical. Electrical Diagrams


Theory of Operation


The TCM needs to learn certain values to properly control Transmission operation. This DTC indicates that these values are not currently learned in the TCM. If the TCM or Transmission is replaced, the QUICK LEARN Procedure must be performed.



When Monitored:
- Ignition on, engine running.

Set Condition:
- TCM detects learned values are not currently in memory.







Always perform the AS68RC Pre-Diagnostic Troubleshooting procedure before proceeding. AS68RC Pre-Diagnostic Troubleshooting Procedure



Diagnostic Test


1. PERFORM TCM QUICK LEARN

This DTC will set if the TCM or the Transmission have been replaced.

View repair

Repair

- With the scan tool, perform the QUICK LEARN Procedure.
- Perform AS68RC VERIFICATION TEST. Verification Tests