Pinpoint Test AD: U2603: BREAK IN OPTICAL HARNESS TO ICE HEAD UNIT. (RECEIVER)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2008 Jaguar S-Type, 2007 Jaguar S-Type, 2006 Jaguar S-Type, 2005 Jaguar S-Type, and 2004 Jaguar S-Type. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FIBRE OPTIC LEAD BETWEEN LUGGAGE COMPARTMENT JOINT AND AMPLIFIER
Disconnect the fibre optic connector, RA006.

Disconnect the fibre optic connector, RA001.

Connect the Optical Bus Tester to RA006.

Set the Optical Bus Tester to TX.

Set the Optical Bus Tester to ON.

Check for light pulses at the receiver pin of disconnected D2B connector, RA001.

Are light pulses visible?

YES: Go to step 2.

NO: INSTALL a new telematic harness between RA001 and RA006. For additional information, refer to the electrical guide. CLEAR the DTC. TEST the system for normal operation.
CHECK CABIN FIBRE OPTIC HARNESS
Disconnect the fibre optic connector, FC107.

Disconnect the fibre optic connector, RA01.

Connect the Optical Bus Tester to RA01 using adaptor lead, if required.

Set the Optical Bus Tester to TX.

Set the Optical Bus Tester to ON.

Check for light pulses at the receiver pin of disconnected D2B connector, FC107.

Are light pulses visible?

YES: Go to step 3.

NO: INSTALL a new cabin optical harness between RA01 and FC107. For additional information, refer to the electrical guide. CLEAR the DTC. TEST the system for normal operation.
CHECK FIBRE OPTIC LEAD BETWEEN ASHTRAY AND ICE HEAD UNIT
Disconnect the fibre optic connector, FC108.

Disconnect the fibre optic connector, FC107.

Connect the Optical Bus Tester to FC107.

Set the Optical Bus Tester to TX.

Set the Optical Bus Tester to ON.

Check for light pulses at the receiver pin of disconnected D2B connector, FC108.

Are light pulses visible?

YES: Go to step 4.

NO: INSTALL a new instrument optical harness between FC107 and FC094. For additional information, refer to the electrical guide. CLEAR the DTC. TEST the system for normal operation.
CHECK THE ICE HEAD UNIT
Connect the optical short link between the receiver and transmitter of the ICE head unit.

Turn the ignition switch to the ACC position.

Wait for 10 seconds.

Check for DTC.

Is U2603 logged?

YES: INSTALL a new ICE head unit, refer to Audio Unit . CLEAR the DTC. TEST the system for normal operation.

NO: Recheck DTCs. No fault found in D2B system.