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Home >> Jaguar >> 2008 >> XJ (X350) V8-4.2L SC >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Information Bus >> Testing and Inspection >> Pinpoint Tests >> Pinpoint Test G239843P23
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Pinpoint Test G239843P23



PINPOINT TEST G239843p23 : CHECK THE SUPPLIES AND GROUNDS TO THE INSTRUMENT CLUSTER (IC)

G239843t96 : CHECK THE PERMANENT SUPPLY TO THE IC
1. Disconnect the IC electrical connector, IP06.
2. Measure the voltage between IP06, pin 03, (O) 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 47). TEST the system for normal operation.

-> NO
GO to Pinpoint Test G239843t97.

G239843t97 : CHECK THE ACCESSORY SUPPLY TO THE IC
1. Reconnect the IC electrical connector, IP06.
2. Disconnect the IC electrical connector, IP05.
3. Turn the ignition switch to the ACC position.
4. Measure the voltage between IP05, pin 04, (YG) 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 08) and the ignition switch. TEST the system for normal operation.

-> NO
GO to Pinpoint Test G239843t98.

G239843t98 : CHECK THE IGNITION SUPPLY (1) TO THE IC
1. Turn the ignition switch to the ON position.
2. Measure the voltage between IP05, pin 03, (GR) 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 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.
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