Diagnosis Procedure
- CHECK CONNECTOR
- Turn the ignition switch OFF.
- Disconnect the 12V battery cable from the negative terminal.
- Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side).
- Approaching vehicle sound for pedestrians (VSP) control unit
- CAN gateway
Is the inspection result normal?
YES
GO TO STEP 2 .
NO
Repair the terminal and connector.
- CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
- Disconnect the connector of CAN gateway.
- Check the continuity between the CAN gateway harness connector terminals.
CAN gateway harness connector Continuity Connector No. Terminal No. M24 4 6 Existed 10 12 Existed
Is the inspection result normal?
YES
GO TO STEP 3 .
NO
Check the harness and repair or replace [if shield line or fuse block (J/B) is open] the root cause (CAN communication circuit 2 side).
- CHECK HARNESS FOR OPEN CIRCUIT
- Connect the connector of CAN gateway.
- Disconnect the connector of approaching vehicle sound for pedestrians (VSP) control unit.
- Check the resistance between the approaching vehicle sound for pedestrians (VSP) control unit harness connector terminals.
Approaching vehicle sound for pedestrians (VSP) control unit harness connector Resistance (Ω) Connector No. Terminal No. B32 4 12 Approx. 54 - 66
Is the measurement value within the specification?
YES
GO TO STEP 4 .
NO
Replace the body harness.
- CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the approaching vehicle sound for pedestrians (VSP) control unit. Refer to DIAGNOSIS PROCEDURE .
Is the inspection result normal?
YES (Present error)
Replace the approaching vehicle sound for pedestrians (VSP) control unit. Refer to REMOVAL AND INSTALLATION .
YES (Past error)
Error was detected in the approaching vehicle sound for pedestrians (VSP) control unit branch line.
NO
Repair the power supply and the ground circuit.