DTC ECM-981A

Diagnostic Trouble Code (DTC) Information





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.