Jaguar XJ (X350). Manual — part 1235

-> Yes

GO to Pinpoint Test G426404t28.

-> No

INSTALL a new rear climate control module. CLEAR the DTC. TEST the system for normal operation.

G426404t28 : CHECK THE REAR BLOWER MOTOR FOR SHORT TO GROUND

1. Disconnect the rear blower motor connector RA4. 2. Measure the resistance between the rear

climate control module connector RA2, pin 07 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

INSTALL a new rear blower motor. CLEAR the DTC. TEST the system for normal operation.

PINPOINT TEST G426404p9 : REAR
BLOWER MOTOR AND CONTROL
MODULE TESTS

G426404t29 : CHECK THE REAR BLOWER MOTOR FOR BATTERY VOLTAGE

1. Disconnect the battery negative terminal.

Battery Disconnect and Connect 2. Disconnect the rear blower motor connector RA4. 3. Reconnect

the battery negative terminal.

Battery Connect (86.15.15) 4. Turn the ignition switch to the ON position. 5. Measure the voltage

between the rear blower motor connector RA4, pin 01 and GROUND.

•

Is the voltage less than 10 volts?

-> Yes

REPAIR the circuit between the rear blower motor connector RA4, pin 01 and battery positive. This

circuit includes the rear passenger distribution box (fuse 53) and rear ignition relay R2. Test the

system for normal operation.

-> No

GO to Pinpoint Test G426404t30.

G426404t30 : CHECK THE REAR BLOWER MOTOR CONTROL MODULE
GROUND CIRCUIT

1. Turn the ignition switch to the OFF position. 2. Disconnect the battery negative terminal.

Battery Disconnect and Connect 3. Disconnect the rear blower motor control module connector

RA3. 4. Measure the resistance between the rear blower motor module connector RA3, pin 01 and

ground.

•

Is the resistance greater than 5 ohms?

-> Yes

REPAIR the high resistance circuit between the rear blower motor module connector RA3, pin 01 and

ground connection G32BS. Check the ground connection for contamination and security. For

additional information, refer to the wiring diagrams. TEST the system for normal operation.

-> No

GO to Pinpoint Test G426404t31.

G426404t31 : CHECK THE REAR BLOWER MOTOR GROUND CIRCUIT FOR
OPEN CIRCUIT

1. Measure the resistance between the rear blower motor connector RA4, pin 02 and rear blower

motor module connector RA3, pin 04.

•

Is the resistance greater than 5 ohms?

-> Yes

REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams. TEST the

system for normal operation.

-> No

GO to Pinpoint Test G426404t32.

G426404t32 : CHECK THE REAR BLOWER MOTOR CONTROL MODULE
FEEDBACK CIRCUIT FOR OPEN CIRCUIT

1. Disconnect the rear climate control module connector RA1. 2. Measure the resistance between

the rear blower motor module connector RA3, pin 03 and rear climate control module RA1, pin 13.

•

Is the resistance greater than 5 ohms?

-> Yes

REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams. TEST the

system for normal operation.

-> No

TEST the rear blower motor. If the rear blower motor is OK, INSTALL a new rear blower motor control

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module. TEST the system for normal operation. If the concern persists, INSTALL a new rear climate

control module.

PINPOINT TEST G426404p10 :
AUXILIARY CLIMATE CONTROL
MODULE CIRCUIT TESTS

G426404t33 : CHECK THE AUXILIARY CLIMATE CONTROL MODULE
BATTERY SUPPLY CIRCUIT FOR OPEN CIRCUIT

1. Disconnect the battery negative terminal.

Battery Disconnect and Connect 2. Disconnect the rear climate control module connector RA2. 3.

Reconnect the battery negative terminal.

Battery Connect (86.15.15) 4. Turn the ignition switch to the ON position. 5. Measure the voltage

between the rear climate control module connector RA2, pin 08 and GROUND.

•

Is the voltage less than 10 volts?

-> Yes

REPAIR the high resistance circuit between the rear climate control module connector RA2, pin 08

and battery. This circuit includes the passenger junction fuse box (fuse 28) and the switched system

power relay. For additional information, refer to the wiring diagrams. TEST the system for normal

operation.

-> No

GO to Pinpoint Test G426404t46.

G426404t46 : CHECK THE AUXILIARY CLIMATE CONTROL MODULE GROUND
CIRCUIT FOR OPEN CIRCUIT

1. Turn the ignition switch to the OFF position. 2. Disconnect the battery negative terminal.

Battery Disconnect and Connect 3. Measure the resistance between the rear climate control module

connector RA2, pin 01 and GROUND.

•

Is the resistance greater than 5 ohms?

-> Yes

REPAIR the high resistance circuit between the rear climate control module connector RA2, pin 01

and ground connection G32BS. Check the ground connection for contamination and security. For

additional information, refer to the wiring diagrams. TEST the system for normal operation.

-> No

INSTALL a new rear climate control module. TEST the system for normal operation.

PINPOINT TEST G426404p11 : DTC
B2833: SENSOR POWER SUPPLY
CIRCUIT TESTS

G426404t47 : CHECK THE SENSOR POWER SUPPLY CIRCUIT FOR OPEN
CIRCUIT

1. Disconnect the battery negative terminal.

Battery Disconnect and Connect 2. Disconnect the evaporator sensor connector, RA10. 3. Disconnect

the rear climate control module connector, RA1. 4. Measure the resistance between RA1, pin 09 and

RA10, pin 01.

•

Is the resistance greater than 5 ohms?

-> Yes

REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams. TEST the

system for normal operation.

-> No

GO to Pinpoint Test G426404t48.

G426404t48 : CHECK THE SENSOR POWER SUPPLY CIRCUIT FOR SHORT
CIRCUIT TO GROUND

1. Measure the resistance between RA10, pin 01 and GROUND.

•

Is the resistance less than 10,000 ohms?

-> Yes

REPAIR the short circuit. For additional information, refer to the wiring diagrams. TEST the system for

normal operation.

-> No

GO to Pinpoint Test G426404t49.

G426404t49 : CHECK THE SENSOR POWER SUPPLY CIRCUIT FOR SHORT
CIRCUIT TO B+

1. Reconnect the battery negative terminal.

Battery Connect (86.15.15) 2. Turn the ignition switch to the ON position. 3. Measure the voltage

between RA10, pin 01 and GROUND.

•

Is the voltage greater than 3 volts?

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