PCM2/CDR23

8009 CDR23

Optical/electrical open circuit in MOST ring line

Diagnostic conditions
- Ignition on
- CDR23 ON

Possible cause of fault
- An optical (optical waveguide) or electrical (PCM2 internal) open circuit in the ring
- 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
- Optional external amplifier (BOSE)
- CD changer

Diagnosis/troubleshooting