TCM E39 / P0974 00
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Message appears in display.
Solenoid S1 Circuit, Open/Short to B+
Fault symptom
Message appears in display.
On-board diagnosis
Type of diagnosis:
Enable criteria:
| Battery voltage must be between 10.2 - 15.5 V. |
| Engine speed over 400 rpm. |
| The diagnostic runs when the output is enabled. |
Fault criteria:
| Solenoid signal output is OFF but the input receives an ON signal. |
System reaction to a fault:
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. |
Functions in the diagnostic tool related to the fault:
| (See also description of readings/activations in diagnostic tool) |
