Checking the power supply

Fig 1: Engine Start Verification

GLL101037

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Disconnecting Connector

GLL101071

Courtesy of VOLVO CARS OF NORTH AMERICA.

Ignition off
Disconnect the connector for the pump motor
Start the engine.
Check the voltage for the pump motor by taking readings between terminals #1 and #2 on the pump motor connector (control module side). The voltage must be Ubat.

If the voltage is not OK, check the wiring between the control module for four wheel drive (Active on Demand Coupling) and the pump motor. Check for an open-circuit. Check for a short-circuit to each other.

Replace the oil pump motor if the voltage is OK.

Remedy as necessary.

Other information
- To replace the oil pump motor, see Oil pump active on demand coupling (AOC), replacing .
- For information about signals, see Signal specification, control module for four wheel drive
- See Contents .
Fig 3: Identifying Connector Terminals
Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 4: Identifying Voltage Display
Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 5: Locating Active On Demand Coupling Connector
Courtesy of VOLVO CARS OF NORTH AMERICA.

Continue
Refer to Verification