Diagnostic Trouble Code (DTC) Information

DTC information
981 3190 Replaced by 9511428 981 3190 Replaced by 951 1428 998 8686 Replaced by 9511532 998 8686 Replaced By 9511532
Condition




Diagnostic trouble code (DTC) AT-421 is posted if the transmission control module (TCM) registers that there is no supply voltage to transmission control module (TCM) #A10 for approx. 10 seconds.

Substitute value
None.

Possible source
- Open-circuit in power supply.
- Contact resistance in terminals.

Fault symptom[s]
- No fault symptoms.