TCM EDC16 / P1981 04

Read the instructions below then start the fault diagnostic procedure.

Symptom: Message appears in display.

P1981 04

Fault symptom

Message appears in display.

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Engine running and not in limp home mode.

Battery voltage must be between 11 - 16 V.

Oil temperature >20 ° C

No oil temperature DTCs.

Fault criteria:

Current consumption exceeds 80 mA for more than 2.75 s.

System reaction to a fault:

Limp home

Checking the wiring harness

Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.

Diagnostic help

Diagnosis regards:

Electrical fault in connecting leads or component.