Diagnosis Procedure
- CHECK LIFTING SENSOR POWER SUPPLY
- Turn Ignition Switch ON.
- Check voltage between Lifting Sensor Control Unit harness connector and ground.
(+)
(-)
Voltage (V)
(Approx.)
Lifting Sensor Control Unit
Connector
Terminals
B515
33
Ground
12
Is the inspection result normal?
YES
GO TO 3.
NO
GO TO 2.
- CHECK POWER SUPPLY CIRCUIT
- Turn Ignition Switch OFF.
- Disconnect Lifting Sensor Control Unit connector and Driver Seat Control Unit connector.
- Check continuity between Lifting Sensor Control Unit harness connector and Driver Seat Control Unit harness connector.
Lifting Sensor Control Unit
Driver Seat Control Unit
Continuity
Connector
Terminal
Connector
Terminal
B515
33
B514
33
Existed
- Check continuity between Lifting Sensor Control Unit harness connector and ground.
Lifting Sensor Control Unit
Ground
Continuity
Connector
Terminal
B515
33
Not existed
Is the inspection result normal?
YES
Replace Driver Seat Control Unit. Refer to Removal and Installation .
NO
Repair or replace harness or connector.
- CHECK GROUND CIRCUIT
Check continuity between the Lifting Sensor Control Unit harness connector and ground.
Lifting Sensor Control Unit
Ground
Continuity
Connector
Terminal
B515
83
Existed
Is the inspection result normal?
YES
INSPECTION END
NO
Repair or replace harness.