Fault Code 0910

Fault code 0910

Control lamp warning light

Diagnostic conditions
- Ignition on
- Internal control module function test
- Warning light on/off

Possible causes of fault
- 'Short circuit to ground' Control lamp does not light, output is active.
- 'Open circuit/short circuit to B+' Control lamp does not light in the event of an 'open circuit', output in component group alone is active.
- 'Open circuit/short circuit to B+' Control lamp does not stay lit in the event of a 'short circuit to B+', output in component group alone is active.

Affected pins
Plug 'J' on vehicle electrical system control module:
- Pin 4 'warning light switch (button)'

Diagnosis/troubleshooting

NOTE:
- Before replacing the control module, the ground connections, power supply and plug connections on the control module must be checked.
- When replacing the vehicle electrical system control module, observe the coding of the control module.
- After the test drive, read out the fault memory with the Porsche System Tester II No. 9588 again. Additional causes of faults that could damage the vehicle electrical system control module should be detected and remedied.