XJ (X350) V8-4.2L (2005)
GO to Pinpoint Test G239843t99.
G239843t99 : CHECK THE IGNITION SUPPLY (2) TO THE IC
1. Turn the ignition switch to the OFF position.
2. Reconnect the IC electrical connector, IP05.
3. Disconnect the IC electrical connector, IP06.
4. Turn the ignition switch to the ON position.
5. Measure the voltage between IP06, pin 17, (WB) and GROUND.
-
Is the voltage less than 10 volts?
-> YES
REPAIR the circuit between the IC and battery. This circuit includes the primary junction box (fuse 06) and the ignition switch. TEST the system
for normal operation.
-> NO
GO to Pinpoint Test G239843t100.
G239843t100 : CHECK THE GROUND TO THE IC
1. Turn the ignition switch to the OFF position.
2. Reconnect the IC electrical connector, IP06.
3. Disconnect the IC electrical connector, IP05.
4. Measure the resistance between IP05, pin 14 (B) and GROUND.
-
Is the resistance greater than 5 ohms?
-> YES
REPAIR the high resistance circuit. TEST the system for normal operation.
-> NO
CHECK for DTCs indicating a network or module fault. REFER to the DTC index.
Pinpoint Test G239843P24
PINPOINT TEST G239843p24 : U2003; COMPACT DISC CHANGER NOT RESPONDING
G239843t233 : CHECK THE CD CHANGER MODULE, USING THE OPTICAL BUS TESTER
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 See: Pinpoint Test G239843P5
GO to Pinpoint Test G239843t255. See: Pinpoint Test G239843P5
-> NO
GO to Pinpoint Test G239843t234.
G239843t234 : CHECK FOR DTC U2602 OR U2603
1. Check DTCs.
-
Are codes U2602 or U2603 logged?
-> YES
For optical ring tests, GO to Pinpoint Test G239843p29. See: Pinpoint Test G239843P29
and GO to Pinpoint Test G239843p30. See: Pinpoint Test G239843P30
-> NO
Recheck DTCs. No break in optical harness.