8009 CDR23

8009 CDR23

Open Circuit In MOST Distribution Line, Optical/Electrical Open Circuit

Diagnostic conditions
- Ignition on
- Start CDR23

Possible cause of fault
- An optical (optical waveguide) or electrical (PCM2) open circuit in the ring
- MOST switch in production mode
- MOST switch incorrectly coded
- An optically/electrically faulty MOST control module is connected to the MOST

NOTE:
The MOST optical waveguide is connected to the following control modules:
- CDR23 as of model year 2003
- CD changer
- Amplifier


Diagnosis/Troubleshooting

Work Instruction 1 - 6: