U2603

: U2603: BREAK IN OPTICAL HARNESS TO AUDIO CONTROL MODULE. (RECEIVER)

G239843t251 : CHECK FIBRE OPTIC LEAD BETWEEN LUGGAGE COMPARTMENT JOINT AND AMPLIFIER
1. Disconnect the fibre optic connector DB07.
2. Disconnect the fibre optic connector DB01.
3. Connect the optical bus tester to DB07.
4. Set the optical bus tester to TX.
5. Set the optical bus tester to ON.
6. Check for light pulses at the receiver pin of disconnected D2B connector DB01.

- Are light pulses visible?

-> Yes

-> No
INSTALL a new telematic harness between DB01 and DB07. CLEAR the DTC. TEST the system for normal operation.

G239843t252 : CHECK CABIN FIBRE OPTIC HARNESS
1. Disconnect the fibre optic connector TL95.
2. Disconnect the fibre optic connector DB01.
3. Connect the optical bus tester to DB01 using the adaptor lead, if required.
4. Set the optical bus tester to TX.
5. Set the optical bus tester to ON.
6. Check for light pulses at the receiver pin of disconnected D2B connector TL95.

- Are light pulses visible?

-> Yes

-> No
INSTALL a new cabin optical harness between RA01 and FC107. CLEAR the DTC. TEST the system for normal operation.

G239843t253 : CHECK FIBRE OPTIC LEAD BETWEEN ASHTRAY AND AUDIO CONTROL MODULE
1. Disconnect the fibre optic connector CC21.
2. Disconnect the fibre optic connector TL95.
3. Connect the optical bus tester to CC21.
4. Set the optical bus tester to TX.
5. Set the optical bus tester to ON.
6. Check for light pulses at the receiver pin of disconnected D2B connector TL95.

- Are light pulses visible?

-> Yes

-> No
INSTALL a new instrument optical harness between CC21 and TL95. CLEAR the DTC. TEST the system for normal operation.

G239843t254 : CHECK THE AUDIO CONTROL MODULE
1. Connect the optical short link between the receiver and transmitter of the audio control module.
2. Turn the ignition switch to the ACC position.
3. Wait for 10 seconds.
4. Check for DTC.

- Is U2603 logged?

-> Yes
INSTALL a new audio control module, CLEAR the DTC. TEST the system for normal operation.

-> No
Recheck DTCs. No fault found in D2B system.