P0720 00 (TCM - Trans Control Module)

P0720 00

Output RPM. No Signal.







Fault symptom
Messages shown in SID.

On-board diagnosis

Type of diagnosis:
Continuous

Enable criteria:
Engine running and not in limp home mode.
Exceptions:
- Reverse gear engaged.
- 2nd or 3rd gear engaged.

Fault criteria:
Control module receives no voltage from the output speed sensor.
Control module receives no value from output speed sensor but receives value from the input speed sensor.

System reaction to a fault:
Control module uses speed value from the ABS system instead of the output speed sensor.
If the DTC remains during several test cycles:
- 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.