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Home >> Jaguar >> 2007 >> XJ (X350) V8-4.2L SC >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Pinpoint Tests >> Speed Control >> PINPOINT TEST G532451p4 : FORWARD ALERT SWITCH LED CIRCUIT TESTS
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PINPOINT TEST G532451p4 : FORWARD ALERT SWITCH LED CIRCUIT TESTS



Pinpoint Tests

PINPOINT TEST G532451p4 : FORWARD ALERT SWITCH LED CIRCUIT TESTS

G532451t6 : CHECK THE FORWARD ALERT SWITCH LED CIRCUIT FOR SHORT CIRCUIT TO GROUND
1. Turn the ignition switch to the OFF position.
2. Disconnect the ACC module connector IP78.
3. Disconnect the forward alert switch connector IP50.
4. Measure the resistance between the ACC module connector IP78, pin 05 (R) and GROUND.

- Is the resistance less than 10,000 ohms?

-> YES
REPAIR the short to ground. CLEAR the DTC. TEST the system for normal operation.

-> NO
INSTALL a new forward alert switch. CLEAR the DTC. TEST the system for normal operation. If the DTC is repeated, INSTALL a new ACC control module, not the forward looking sensor.
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