Diagnosis Procedure
- CHECK CONNECTOR
- Turn the ignition switch OFF.
- Disconnect the battery cable from the negative terminal.
- Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side).
- Side radar LH
- ADAS control unit
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 ADAS control unit.
- Check the continuity between the ADAS control unit harness connector terminals.
ADAS control unit harness connector
Continuity
Connector No.
Terminal No.
M128
2
18
Existed
5
6
Existed
Is the inspection result normal?
YES
GO TO STEP 3 .
NO
Check the harness and repair the root cause (ITS CAN communication circuit side).
- CHECK HARNESS FOR OPEN CIRCUIT
- Connect the connector of ADAS control unit.
- Disconnect the connector of side radar LH.
- Check the resistance between the side radar LH harness connector terminals.
Side radar LH harness connector
Resistance (Ω)
Connector No.
Terminal No.
C116
6
7
Approx. 54 - 66
Is the measurement value within the specification?
YES
GO TO STEP 4 .
NO
Repair the side radar LH branch line.
- CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the side radar LH. Refer to Diagnosis Procedure .
Is the inspection result normal?
YES
Replace the side radar LH. Refer to Removal and Installation .
YES
Error was detected in the side radar LH branch line.
NO
Repair the power supply and the ground circuit.