B2553

B2553 IGNITION RELAY

Description
BCM turns ON the given relays to ignition power supply to each ECU when the ignition switch is turned ON.
- Ignition relay-1 (inside IPDM E/R)
- Ignition relay-2 (inside fuse block)
- Blower fan motor relay

BCM checks any ignition relay ON request for consistency with the actual ignition relay operation status

DTC Logic




DTC DETECTION LOGIC

Step 1:

DTC CONFIRMATION PROCEDURE

Step 1-2:

Step 2 (Continued)-3:

Diagnosis Procedure