P167A-CALIBRATION MISMATCH

For a complete wiring diagram Refer to Section 8W.

Theory of Operation

During the initial ignition on, the Transmission Control Module (TCM) receives the calibrated data from the EEPROM assembly inside the transmission and stores this information in the EEPROM of the TCM. At every ignition on, the TCM compares the stored data in the EEPROM to the transmitted data from the EEPROM in the transmission. If the calibration data does not match the DTC will set and the MIL will illuminate after one failure.

• When Monitored:

  One time at initial ignition on with a system voltage between 9.0 and 16.0 volts.

• Set Condition:

  If the TCM stored calibration does not match the EEPROM assembly in the transmission. This DTC requires only one problem identification to set the MIL.

Always perform the CVT Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 21 - TRANSMISSION/TRANSAXLE/AUTOMATIC - CVT - STANDARD PROCEDURE)

• This is an informational DTC indicating that the TCM, CV Transmission, or the CV Transmission internal controller (valve body) was replaced without being calibrated. With the scan tool perform a Re-initialize CVT procedure. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/TRANSMISSION CONTROL MODULE - STANDARD PROCEDURE)
• Perform CVT VERIFICATION TEST. (Refer to 21 - TRANSMISSION/TRANSAXLE/AUTOMATIC - CVT - STANDARD PROCEDURE)