Pinpoint Test G426404P8

PINPOINT TEST G426404p8 : DTC B2844: REAR CLIMATE CONTROL MODULE IGNITION FEED CIRCUIT TESTS

G426404t25 : CHECK THE REAR CLIMATE CONTROL MODULE IGNITION FEED CIRCUIT FOR VOLTAGE
1. Disconnect the battery negative terminal.
2. Disconnect the rear climate control module connector RA02.
3. Reconnect the battery negative terminal.
4. Turn the ignition switch to the ON position.
5. Measure the voltage between the rear climate control module connector RA02, pin 07 (RG) and GROUND.

- Is the voltage less than 10 volts?

-> YES
GO to Pinpoint Test G426404t24.

-> NO
CHECK the ground to the rear climate control module. If a ground is present, INSTALL a new rear climate control module. CLEAR the DTC. TEST the system for normal operation.

G426404t24 : CHECK REAR PASSENGER DISTRIBUTION BOX FUSE F53
1. Turn the ignition switch to the OFF position.
2. Remove the rear passenger distribution box fuse F53.
3. Inspect fuse F53 for open circuit.

- Is the fuse OK?

-> YES
GO to Pinpoint Test G426404t26.

-> NO
GO to Pinpoint Test G426404t27.

G426404t26 : CHECK THE REAR CLIMATE CONTROL MODULE IGNITION FEED CIRCUIT FOR OPEN CIRCUIT
1. Disconnect the battery negative terminal.
2. Measure the resistance between the rear climate control module connector RA02, pin 07 (RG) and rear passenger distribution box fuse F53.

- Is the resistance greater than 5 ohms?

-> YES
REPAIR the high resistance circuit. CLEAR the DTC. TEST the system for normal operation.

-> NO
REPAIR the high resistance circuit between the rear passenger distribution box fuse F53 and battery positive. This circuit includes the rear ignition relay R2. CLEAR the DTC. TEST the system for normal operation.

G426404t27 : CHECK THE REAR CLIMATE CONTROL MODULE IGNITION FEED CIRCUIT FOR SHORT TO GROUND
1. Disconnect the battery negative terminal.
2. Measure the resistance between the rear climate control module connector RA02, pin 07 (RG) and GROUND.

- Is the resistance less than 10,000 ohms?

-> 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 RA04.
2. Measure the resistance between the rear climate control module connector RA02, pin 07 (RG) and GROUND.

- Is the resistance less than 10,000 ohms?

-> YES
REPAIR the short circuit. 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.