8009 CDR23

8009 CDR23

Open circuit in MOST distribution line, optical/electrical open circuit

Diagnostic conditions
- Ignition on
- CDR23 ON

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

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

Affected terminals

Diagnosis/troubleshooting

Diagnosis/troubleshooting (Part 1):

Diagnosis/troubleshooting (Part 2):