Description
The AV control unit sends audio signals to the BOSE speaker amp. The BOSE speaker amp. amplifies the audio signals before sending them to the front door speakers using the audio signal circuits.
Diagnosis Procedure
1.CONNECTOR CHECK
Check the AV control unit, BOSE speaker amp. and speaker connectors for the following:
2.HARNESS CHECK
3.FRONT DOOR SPEAKER SIGNAL CHECK
4.HARNESS CHECK
5.FRONT DOOR SPEAKER SIGNAL CHECK
connector.
DTC/circuit diagnosis
POWER SUPPLY AND GROUND CIRCUIT
COMBINATION METER
COMBINATION METER : Diagnosis Procedure
Regarding Wiring Diagram information, refer to MWI-87, "Wiring Diagram".
1.CHECK FUSES
Check for blown combination meter fuses.
2.POWER SUPPLY CIRCUIT CHECK
Disconnect combination meter connector.
...
B2555 stop lamp
Description
BCM detects the stop lamp status and confirms the stop
lamp switch ON/OFF status. BCM confirms the
engine start condition according to the stop lamp switch ON/OFF status.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
  ...
Diagnosis and repair workflow
Work Flow
OVERALL SEQUENCE
DETAILED FLOW
1. GET INFORMATION FOR SYMPTOM
Get the detailed information from the customer about the symptom (the
condition and the environment when
the incident/malfunction occurred).
2. CHECK DTC
Check DTC.
Perform the following procedure if DTC is ...