Jaguar XJ (X350). Manual — part 1579

G1043827t100 : CHECK THE FRONT CRASH SENSOR
SIGNAL RETURN CIRCUIT FOR HIGH RESISTANCE

1. Disconnect the battery negative terminal. 2. Wait one minute for the system to become safe.
3. Disconnect the RCM electrical connector, CR87. 4. Disconnect the front crash sensor
electrical connector, EC50. 5. Measure the resistance between CR87, pin 20 (W) and EC50,
pin 01 (W).

•

Is the resistance greater than 5 ohms?

-> Yes
REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams.
CLEAR the DTC. TEST the system for normal operation.

-> No
GO to Pinpoint Test G1043827t101.

G1043827t101 : CHECK THE FRONT CRASH SENSOR
SIGNAL RETURN CIRCUIT FOR SHORT TO
GROUND

1. Reconnect the battery negative terminal. 2. Measure the resistance between CR87, pin 20
(W) and GROUND.

•

Is the resistance less than 10,000 ohms?

-> Yes
REPAIR the short circuit. For additional information, refer to the wiring diagrams. CLEAR
the DTC. TEST the system for normal operation.

-> No
GO to Pinpoint Test G1043827t102.

G1043827t102 : CHECK THE FRONT CRASH SENSOR
SIGNAL RETURN CIRCUIT FOR SHORT TO POWER

1. Measure the voltage between CR87, pin 20 (W) and GROUND.

•

Is the voltage greater than 3 volts?

-> Yes
REPAIR the short circuit. For additional information, refer to the wiring diagrams. CLEAR
the DTC. TEST the system for normal operation.

-> No

GO to Pinpoint Test G1043827t103.

G1043827t103 : CHECK THE FRONT CRASH SENSOR
SIGNAL POWER CIRCUIT FOR HIGH RESISTANCE

1. Disconnect the battery negative terminal. 2. Wait one minute for the system to become safe.
3. Measure the resistance between CR87, pin 19 (N) and EC50, pin 02 (N).

•

Is the resistance greater than 5 ohms?

-> Yes
REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams.
CLEAR the DTC. TEST the system for normal operation.

-> No
GO to Pinpoint Test G1043827t104.

G1043827t104 : CHECK THE FRONT CRASH SENSOR
SIGNAL POWER CIRCUIT FOR SHORT TO GROUND

1. Reconnect the battery negative terminal. 2. Measure the resistance between CR87, pin 19
(N) and GROUND.

•

Is the resistance less than 10,000 ohms?

-> Yes
REPAIR the short circuit. For additional information, refer to the wiring diagrams. CLEAR
the DTC. TEST the system for normal operation.

-> No
GO to Pinpoint Test G1043827t105.

G1043827t105 : CHECK THE FRONT CRASH SENSOR
SIGNAL POWER CIRCUIT FOR SHORT TO POWER

1. Measure the voltage between CR87, pin 19 (N) and GROUND.

•

Is the voltage greater than 3 volts?

-> Yes
REPAIR the short circuit. For additional information, refer to the wiring diagrams. CLEAR
the DTC. TEST the system for normal operation.

-> No

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INSTALL a new front crash sensor,
Crash Sensor (76.73.55)

PINPOINT TEST G1043827p18 : DTC
B2296: FLASH CODE 43: DRIVER SIDE
FRONT CRASH SENSOR CIRCUIT
MALFUNCTION

G1043827t106 : CHECK THE DRIVER SIDE FRONT
CRASH SENSOR SIGNAL POWER CIRCUIT FOR
HIGH RESISTANCE

1. Disconnect the battery negative terminal. 2. Wait one minute for the system to become safe.
3. Disconnect the RCM electrical connector, CR87. 4. Disconnect the driver side front crash
sensor electrical connector, CR60. 5. Measure the resistance between CR87, pin 27 (NG) and
CR60, pin 02 (NG).

•

Is the resistance greater than 5 ohms?

-> Yes
REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams.
CLEAR the DTC. TEST the system for normal operation.

-> No
GO to Pinpoint Test G1043827t107.

G1043827t107 : CHECK THE DRIVER SIDE FRONT
CRASH SENSOR SIGNAL POWER CIRCUIT FOR
SHORT TO GROUND

1. Reconnect the battery negative terminal. 2. Measure the resistance between CR87, pin 27
(NG) and GROUND.

•

Is the resistance less than 10,000 ohms?

-> Yes
REPAIR the short circuit. For additional information, refer to the wiring diagrams. CLEAR
the DTC. TEST the system for normal operation.

-> No
GO to Pinpoint Test G1043827t108.

G1043827t108 : CHECK THE DRIVER SIDE FRONT
CRASH SENSOR SIGNAL POWER CIRCUIT FOR
SHORT TO POWER

1. Measure the voltage between CR87, pin 27 (NG) and GROUND.

•

Is the voltage greater than 3 volts?

-> Yes
REPAIR the short circuit. For additional information, refer to the wiring diagrams. CLEAR
the DTC. TEST the system for normal operation.

-> No
GO to Pinpoint Test G1043827t109.

G1043827t109 : CHECK THE DRIVER SIDE FRONT
CRASH SENSOR SIGNAL RETURN CIRCUIT FOR
HIGH RESISTANCE

1. Disconnect the battery negative terminal. 2. Wait one minute for the system to become safe.
3. Measure the resistance between CR87, pin 28 (WU) and CR60, pin 01 (WU).

•

Is the resistance greater than 5 ohms?

-> Yes
REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams.
CLEAR the DTC. TEST the system for normal operation.

-> No
GO to Pinpoint Test G1043827t110.

G1043827t110 : CHECK THE DRIVER SIDE FRONT
CRASH SENSOR SIGNAL RETURN CIRCUIT FOR
SHORT TO GROUND

1. Reconnect the battery negative terminal. 2. Measure the resistance between CR87, pin 28
(WU) and GROUND.

•

Is the resistance less than 10,000 ohms?

-> Yes
REPAIR the short circuit. For additional information, refer to the wiring diagrams. CLEAR
the DTC. TEST the system for normal operation.

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