Description
BCM turns ON the following relays to ignition power supply to each ECU when the ignition switch is turned ON.
BCM checks any ignition relay ON request for consistency with the actual ignition relay operation status.
DTC Logic
DTC DETECTION LOGIC
NOTE:

DTC CONFIRMATION PROCEDURE
1. PERFORM DTC CONFIRMATION PROCEDURE
Diagnosis Procedure
1.CHECK DATA MONITOR
2.CHECK CAN COMMUNICATION
Check CAN communication.
3.CHECK IGNITION RELAY-1 SIGNAL




B2553 ignition relay
B2614 ACC relay circuitIPDM E/R (intelligent power distribution module engine room)
Reference Value
VALUES ON THE DIAGNOSIS TOOL
TERMINAL LAYOUT
Fail Safe
CAN COMMUNICATION CONTROL
When CAN communication with ECM and BCM is impossible, IPDM E/R performs
fail-safe control. After CAN
communication recovers normally, it also returns to normal control.
If No ...
Power supply and ground circuit
BCM (BODY CONTROL MODULE)
BCM (BODY CONTROL MODULE) : Diagnosis Procedure
1. CHECK FUSE AND FUSIBLE LINK
Check if the following BCM fuses or fusible link are blown.
2. CHECK POWER SUPPLY CIRCUIT
Turn ignition switch OFF.
Disconnect BCM.
Check voltage between BCM harness connector and ...
P1554 battery current sensor
Description
The power generation voltage variable control enables fuel consumption to be
decreased by reducing the
engine load which is caused by the power generation of the generator. The
battery current sensor is installed
to the battery cable at the negative terminal. The sensor measures ...