Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-981A

Condition




Diagnostic trouble code (DTC) ECM-981A is stored if the engine control module (ECM) registers an internal fault which indicates that the normal engine control functions are producing a higher torque than is within the maximum permitted range. The diagnostic trouble code (DTC) is diagnosed at ignition on or with the engine running.

Substitute value
The engine speed (RPM) is restricted to approximately 2200 rpm by shutting off the fuel.
The requested torque is limited to a calculated operating range.

Possible source
- Defective engine control module (ECM).

Fault symptom[s]
- Maximum engine speed (RPM) too low
- Cruise control does not function at all
- Uneven idle
- Malfunction indicator lamp (MIL) lit.