Jaguar XJ (X350). Manual — part 1573

-> 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 G1043827t40.

G1043827t40 : CHECK THE LOWER STACK
TRANSDUCER CIRCUIT FOR SHORT CIRCUIT

1. Disconnect the lower stack transducer electrical connector, CL06. 2. Measure the resistance
between SP30, pin 03 (NW) and SP30, pin 04 (Y).

•

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 G1043827t41.

G1043827t41 : CHECK THE ROOF REAR CENTER
TRANSDUCER CAN - CIRCUIT FOR HIGH
RESISTANCE

1. Measure the resistance between SP30, pin 03 (NW) and CL06, pin 01 (NW).

•

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 G1043827t42.

G1043827t42 : CHECK THE ROOF REAR CENTER
TRANSDUCER CAN - CIRCUIT FOR SHORT TO
GROUND

1. Measure the resistance between SP30, pin 03 (NW) 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 G1043827t43.

G1043827t43 : CHECK THE ROOF REAR CENTER
TRANSDUCER CAN - CIRCUIT FOR SHORT TO
POWER

1. Measure the voltage between SP30, pin 03 (NW) 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 G1043827t44.

G1043827t44 : CHECK THE ROOF REAR CENTER
TRANSDUCER CAN + CIRCUIT FOR HIGH
RESISTANCE

1. Measure the resistance between SP30, pin 01 (BG) and RF16, pin 01 (BG).

•

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 G1043827t45.

G1043827t45 : CHECK THE ROOF REAR CENTER
TRANSDUCER CAN + CIRCUIT FOR SHORT TO
GROUND

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1. Measure the resistance between SP30, pin 01 (BG) 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 G1043827t46.

G1043827t46 : CHECK THE ROOF REAR CENTER
TRANSDUCER CAN + CIRCUIT FOR SHORT TO
POWER

1. Measure the voltage between SP30, pin 01 (BG) 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
INSTALL a new occupant classification module
Driver Air Bag Module (76.73.39) CLEAR the DTC, allow a self-test to complete. TEST the
system for normal operation. If the DTC reoccurs, contact dealer technical support for advice
on possible transducer failure.

PINPOINT TEST G1043827p5 : DTC
B1884, B1890: FLASH CODE 18:
PASSENGER AIRBAG DEACTIVATION
(PAD) WARNING LAMP CIRCUIT
MALFUNCTION

G1043827t47 : CHECK THE PAD WARNING LAMP
BULB FOR CONTINUITY

1. Disconnect the battery negative terminal. 2. Wait one minute for the system to become safe.
3. Disconnect the PAD lamp electrical connector, IP68. 4. Check for continuity between IP68,
pins 01 (WU) and 03 (BR).

•

Is the circuit continuous?

-> Yes
GO to Pinpoint Test G1043827t48.


-> No
INSTALL a new bulb. CLEAR the DTC. TEST the system for normal operation.

G1043827t48 : CHECK THE POWER SUPPLY TO THE
PAD WARNING LAMP

1. Reconnect the battery negative terminal. 2. Turn the ignition switch to the ON position. 3.
Measure the voltage between IP68, pin 01 (WU) and GROUND.

•

Is the voltage greater than 10 volts?

-> Yes
REPAIR the circuit between the PAD warning lamp and battery. This circuit includes the
primary junction box (fuse 29). For additional information, refer to the wiring diagrams.
CLEAR the DTC. TEST the system for normal operation.

-> No
GO to Pinpoint Test G1043827t49.

G1043827t49 : CHECK THE POWER SUPPLY TO THE
PAD WARNING LAMP 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, CR86. 4. Measure the resistance between IP68,
pin 03 (BR) and CR86, pin 15 (BR).

•

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 G1043827t50.

G1043827t50 : CHECK THE POWER SUPPLY TO THE
PAD WARNING LAMP FOR SHORT TO GROUND

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