Jaguar XJ (X350). Service manual — part 996
CR14, harness side CR14, harness side
Pin 04
Pin 03
Is the resistance greater than 100 Kohms?
-> Yes
GO to Pinpoint Test G549822t93.
-> No
REPAIR the short circuit. For additional information, refer to the wiring diagrams. Clear any DTCs, test
the system for normal operation.
G549822t93 : CHECK WHETHER THE SHORT CIRCUIT TO GROUND IS IN THE
HARNESS OR THE MODULE
1. Measure the resistance between:
CR14, harness side
Battery
Pin 04
Negative terminal
Is the resistance greater than 100 Kohms?
-> Yes
Suspect: - ECM
-> No
REPAIR the short circuit. For additional information, refer to the wiring diagrams. Clear any DTCs, test
the system for normal operation.
G549822t94 : CHECK WHETHER THE SHORT CIRCUIT TO POWER IS IN THE
HARNESS OR THE MODULE
1. Key off. 2. Disconnect the ECM connector, EC66. 3. Key on, engine off. 4. Measure the resistance
between:
CR14, harness side
Battery
Pin 04
Positive terminal
Is the resistance greater than 100 Kohms?
-> Yes
Suspect: - ECM
-> No
REPAIR the short circuit. For additional information, refer to the wiring diagrams. Clear any DTCs, test
the system for normal operation.
G549822t95 : CHECK WHETHER THE SHORT CIRCUIT IS IN THE HARNESS
OR THE MODULE
1. Key off. 2. Disconnect the ECM connector, EC66. 3. Key on, engine off. 4. Measure the resistance
between:
CR14, harness side CR14, harness side
Pin 04
Pin 05
Pin 04
Pin 03
Are the resistances greater than 100 Kohms?
-> Yes
Suspect: -ECM
-> No
REPAIR the short circuit. For additional information, refer to the wiring diagrams. Clear any DTCs, test
the system for normal operation.
G549822t96 : CHECK THE 5 VOLT SUPPLY CIRCUIT FOR SHORT CIRCUIT TO
GROUND
1. Measure the resistance between:
CR14, harness side
Battery
Pin 05
Negative terminal
Is the resistance greater than 100 Kohms?
-> Yes
GO to Pinpoint Test G549822t97.
www.
-> No
GO to Pinpoint Test G549822t101.
G549822t97 : CHECK THE 5 VOLT SUPPLY CIRCUIT FOR SHORT CIRCUIT TO
POWER
1. Measure the resistance between:
CR14, harness side
Battery
Pin 05
Positive terminal
Is the resistance greater than 100 Kohms?
-> Yes
GO to Pinpoint Test G549822t98.
-> No
GO to Pinpoint Test G549822t103.
G549822t98 : CHECK THE 5 VOLT SUPPLY CIRCUIT FOR HIGH RESISTANCE
1. Key off. 2. Disconnect the ECM connector, EC66. 3. Measure the resistance between:
CR14, harness side EC66, harness side
Pin 05
Pin E1
Is the resistance less than 10 ohms?
-> Yes
Suspect : - ECM connector - ECM
-> No
REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams. Clear any
DTCs, test the system for normal operation.
G549822t99 : CHECK THE APP1 SUPPLY AND RETURN CIRCUITS FOR SHORT
CIRCUIT TO EACH OTHER
1. Key off. 2. Disconnect the ECM connector, EC66. 3. Key on, engine off. 4. Measure the resistance
between:
CR14, harness side CR14, harness side
Pin 05
Pin 03
Is the resistance greater than 100 Kohms?
-> Yes
GO to Pinpoint Test G549822t100.
-> No
REPAIR the short circuit. For additional information, refer to the wiring diagrams. Clear any DTCs, test
the system for normal operation.
G549822t100 : CHECK THE APP1 SENSOR TO ECM RETURN CIRCUIT FOR
HIGH RESISTANCE
1. Measure the resistance between:
CR14, harness side EC66, harness side
Pin 03
Pin C1
Is the resistance less than 10 ohms?
-> Yes
Suspect : - ECM connector - ECM
-> No
REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams. Clear any
DTCs, test the system for normal operation.
G549822t101 : CHECK THE APP1 SUPPLY AND RETURN CIRCUITS FOR
SHORT CIRCUIT TO EACH OTHER
1. Key off. 2. Disconnect the ECM connector, EC66. 3. Key on, engine off. 4. Measure the resistance
between:
www.
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