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 AV control unit. Refer to the following.
- Models without BOSE audio with color display: AV-231, "AV CONTROL UNIT : Diagnosis Procedure" - Models with BOSE audio with color display: AV-388, "AV CONTROL UNIT : Diagnosis Procedure" - Models with BOSE audio with color display with navigation system: AV-571, "AV CONTROL UNIT : Diagnosis Procedure"
M&A branch line circuit
HVAC branch line circuitPower supply and ground circuit
Description
EPS system functions by ignition power supply.
Diagnosis Procedure
1.CHECK POWER SUPPLY
Turn the ignition switch OFF.
Disconnect power steering control unit connector.
Turn the ignition switch ON.
Check voltage between power steering control unit connectorM59
terminal 3 ...
Auto light system
System Diagram
System Description
BCM (Body Control Module) controls auto light operation according to
signals from optical sensor, lighting switch and ignition switch.
IPDM E/R (Intelligent Power Distribution Module Engine Room)
operates parking, license plate, tail, front fog lamps ...
Diagnosis system (BCM)
COMMON ITEM
CONSULT Function (BCM - COMMON ITEM)
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions.
RETAINED PWR
CONSULT Function (BCM - RETAINED PWR)
DATA MONITOR
...