Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information
981 3190 Replaced by 9511428 981 3190 Replaced by 951 1428 998 8686 Replaced by 9511532 998 8686 Replaced By 9511532
Condition




The load signal (TQ) from the engine control module (ECM) provides the transmission control module (TCM) with information about the torque being delivered by the engine. This signal also provides information about engine speed (rpm), and whether the engine is idling or if the fuel is shut-off. Diagnostic trouble code (DTC) AT-134 is stored if the transmission control module (TCM) does not register an incoming load signal when the RPM sensor on the transmission gives a signal that the rpm of the input shaft after the torque converter is over approximately 600 rpm.

Substitute value
The transmission control module (TCM) "Emergency mode I"program has been initiated.

Possible source
- Open-circuit in the signal cable.
- Short-circuit to supply voltage or ground in the signal cable.
- Contact resistance in the terminals.

Fault symptom[s]
- The combined instrument panel warning lamp flashes once when the fault is detected.
- No lock-up function.
- No adaptation of the gear slippage times at high altitude (High Altitude Compensation).