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REPAIR the circuit between TLO9 pin 05 and audio control module electrical connector CC08 pin 19. For additional information, refer to the wiring diagrams. CLEAR the DTC. TEST the system for normal operation. G239843t351 : CHECK THE WAKE-UP SIGNAL TO THE REAR 1. Disconnect the rear entertainment module electrical connector RC001. 2. Turn the ignition switch to the ACC position. 3. Measure the voltage between RC01 pin 06 (OG) and GROUND, using an oscilloscope (see note above). •
Does the oscilloscope show a wake-up signal as described? -> Yes Check for DTCs indicating a module fault.
-> No REPAIR the circuit between RC01 pin 06 and audio control module electrical connector CC08 pin 19. For additional information, refer to the wiring diagrams. CLEAR the DTC. TEST the system for normal operation. PINPOINT TEST G239843p24 : U2003; G239843t233 : CHECK THE CD CHANGER MODULE, USING THE OPTICAL BUS 1. Connect the optical bus tester to the fibre optic lead connector DB02. 2. Set the optical bus tester to BY-PASS. 3. CLEAR the DTC. 4. Turn the ignition switch to the ACC position. 5. Wait for 10 seconds. 6. Check for "not responding" DTCs. •
Is U2003 set? -> Yes For "wake-up" signal circuit tests, GO to Pinpoint Test G239843p5. . GO to Pinpoint Test G239843t255.
-> No GO to Pinpoint Test G239843t234.
G239843t234 : CHECK FOR DTC U2602 OR U2603 1. Check DTCs. |