Diagnosis Procedure
1.CHECK CONNECTOR
2.CHECK HARNESS FOR OPEN CIRCUIT

3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the BCM. Refer to BCS-36, "Diagnosis Procedure".
Is the inspection result normal?
ADP branch line circuit
DLC branch line circuitBSW driving situations
Illustration 1 - Approaching from behind
Indicator
on
Indicator
off
Indicator
flashing
Another vehicle approaching from
behind
Illustration 1: The side BSW/RCTA indicator
light illuminates if a vehicle enters the detection
zone from behind in an adjacent lane.
Illustration 2 - ...
Turn signal lamp circuit
Description
The BCM monitors inputs from the combination switch to determine when to
activate the turn signals. The BCM outputs voltage direction to the left and
right turn signals during turn signal operation or both during hazard warning
operation. The BCM sends a turn signal indicator requ ...
Main line between DLC and HVAC circuit
Diagnosis Procedure
1.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Disconnect the following harness connectors.
ECM
A/C auto amp.
Check the continuity between the data link connector and the A/C ...