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TPMM / C0781 05

Read the instructions below then start the fault diagnostic procedure.

Symptom: Message appears in display.

  C0781 05


Radio Receiver Right Front, Open Load or Short to B+

Fault symptom

Message appears in display.

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Vehicle speed above 30 km/h for more than 30 seconds.

Fault criteria:

The signal detector is inactive during the entire programming procedure.

System reaction to a fault:

The control module stores the most recently received transfer and uses it for continued functionality.

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:

The diagnostic trouble code can be generated if tyres that block radio waves to the radio receiver are mounted. The radio waves are especially hindered by thick cord tyres.
In case of a fault, the control module may need up to 10 minutes in an active state before it can diagnose the fault.
Electrical fault in connecting leads or component.

Functions in the diagnostic tool related to the fault:


Test value:
Receiver RF
(See also description of readings/activations in diagnostic tool)