C1668

DTC C1668 REPEATED WATCHDOG RESET / INTERNAL FAILURE DETECTION

COMPONENT LOCATION
Refer to DTC C1126. C1126

GENERAL DESCRIPTION
Refer to DTC C1126. C1126

DTC DESCRIPTION
This DTC indicates that the receiver has detected an internal error.

DTC DETECTING CONDITION:

COMPONENT INSPECTION
1. Connect "TPMS exciter" or Scantool to Data Link Connector (DLC).





2. Clear DTC.
3. IG OFF & IG ON. Wait 4 minutes.
4. Execute "Diagnostic Trouble Codes (DTCs)".
5. Is "C1668" present?
YES
> Substitute with a known-good TPM Receiver module and check for proper operation.
> If the problem is corrected, replace TPM Receiver module and go to "Verification of vehicle Repair" procedure.
NO
> TPM receiver complete successful Auto-Learn.
> System is OK

VERIFICATION OF VEHICLE REPAIR
Refer to DTC C1121. C1121