Pathfinder 2WD V6-4.0L (VQ40DE) (2009)
Diagnosis Procedure
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the ABS actuator and electric unit (control unit) for damage, bend and loose connection (unit side and
connector side).
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the terminal and connector.
2.CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of ABS actuator and electric unit (control unit).
2. Check the resistance between the ABS actuator and electric unit (control unit) harness connector terminals.
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VQ engine models
Is the measurement value within the specification?
YES >> GO TO 3.
NO >> Repair the ABS actuator and electric unit (control unit) branch line.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the ABS actuator and electric unit (control unit). Refer to the following.
NOTE:
Check the type discrimination of the vehicle. Refer to See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Application and
ID/Type 1 - VDC/TCS/ABS.
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TYPE 1 (VQ40DE): See: Testing and Inspection/Diagnostic Trouble Code Tests and Associated Procedures/C Code Charts/C1109/Type 1 -
VDC/TCS/ABS
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TYPE 2: See: Testing and Inspection/Diagnostic Trouble Code Tests and Associated Procedures/C Code Charts/C1109/Type 2 - Hill Descent
Control/Hill Start Assist/VDC/TCS/ABS
Is the inspection result normal?
YES (Present error)>>Replace the ABS actuator and electric unit (control unit). Refer to the following.
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TYPE 1: See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Hydraulic Control Assembly - Antilock Brakes/Service
and Repair
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TYPE 2: See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Hydraulic Control Assembly - Antilock Brakes/Service
and Repair
YES (Past error)>>Error was detected in the ABS actuator and electric unit (control unit) branch line.
NO >> Repair the power supply and the ground circuit.
Branch Line
MALFUNCTION AREA CHART
Branch Line