XJ (X308) V8-4.0L SC (2003)
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Is the resistance less than 10,000 ohms?
-> Yes
REPAIR the short circuit. Test the system for normal operation.
-> No
Check for DTCs indicating a faulty module or circuit. Refer to the DTC index.
Check the Supplies and Grounds to the Adaptive Speed Module
: CHECK THE SUPPLIES AND GROUNDS TO THE ADAPTIVE SPEED CONTROL MODULE (ASCCM)
G239843t111 : CHECK THE IGNITION SUPPLY TO THE ASCCM
1. Disconnect the ASCCM electrical connector, EC23.
2. Turn the ignition switch to the ON position.
3. Measure the voltage between EC23, pin 07 (WU) and GROUND.
-
Is the voltage less than 10 volts?
-> Yes
REPAIR the circuit between the ASCCM and battery. This circuit includes the primary junction box (fuse 02) and the ignition switch. TEST the system
for normal operation.
-> No
G239843t112 : CHECK THE SWITCHED SYSTEM POWER (SSP) SUPPLY TO THE ASCCM
1. Make sure the SSP relay is energized.
2. Measure the voltage between EC23, pin 01 (NW) and GROUND.
-
Is the voltage less than 10 volts?
-> Yes
REPAIR the circuit between the ASCCM and battery. This circuit includes the primary junction box (fuse 27) and the SSP relay. TEST the system for
normal operation.
-> No
G239843t113 : CHECK THE GROUND TO THE ASCCM
1. Measure the resistance between EC23, pin 02 (B) and GROUND.
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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.
Check the Supplies and Grounds to the Air Conditioning Module
: CHECK THE SUPPLIES AND GROUNDS TO THE AIR CONDITIONING CONTROL MODULE (A/CCM)
G239843t103 : CHECK THE IGNITION SUPPLY TO THE A/CCM
1. Disconnect the A/CCM electrical connector, CR119.
2. Turn the ignition switch to the ON position.
3. Measure the voltage between CR119, pin 03 (WG) and GROUND.
-
Is the voltage less than 10 volts?
-> Yes