D103

D103-MOST RING BREAK BEFORE POSITION 3-RADIO





For a complete wiring diagram, Refer to the Wiring Information Electrical Diagrams.

- When Monitored:
Whenever the radio is awake.

- Set Condition:
When the radio detects a break in the fiber optic cable ring.





1. TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, record and erase DTC's.
3. With the scan tool, read DTC's.

Does the scan tool display D103-MOST RING BREAK BEFORE POSITION 3-RADIO?

Yes

- Go To 2

No

- The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
- Perform BODY VERIFICATION TEST. Body Verification Test.

2. FIBER OPTIC CABLE
1. Check the fiber optic cable between MOST component 3 and the MOST predecessor.
2. Check for broken or misaligned fiber optic cable.

Is the fiber optic cable broken or misaligned?

Yes

- Repair or replace the fiber optic cable between MOST component 3 and the MOST predecessor.
- Perform BODY VERIFICATION TEST. Body Verification Test.

No

- Test complete.
- Perform BODY VERIFICATION TEST. Body Verification Test.