DTC 54

C1735 IGNITION SIGNAL





Description
The BCM monitors the IGN ON signal on the CAN line and compares it to it's direct IGN ON signal. When these two signals do not match, the BCM sets C1735.




DTC Logic

DTC DETECTION LOGIC

DTC Detection Logic:

DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULTS
1. On SELECT DIAG MODE, select the SELF-DIAG RESULT screen.
2. Check display contents on SELF DIAG RESULT screen.
Is C1735 displayed in the self-diagnosis display?
YES - Refer to C1735.
NO - Inspection End.




Diagnosis Procedure

MALFUNCTION CODE NO. 54 (DTC C1735)
1.CAN IGNITION SIGNAL
Check BCM IGN RLY signal with CONSULT-III. Refer to Reference Value.
Are the inspection results normal with the ignition switch ON?
YES - GO TO 2.
NO - Check CAN system. Refer to CAN System Specification Chart.
2.BCM POWER SUPPLY
Check BCM power supply (ignition ON). Refer to Power Supply and Ground Circuit.
Is the power supply with the ignition switch ON normal?
YES - GO TO 3.
NO - Repair power supply as necessary.
3.DRIVE VEHICLE
Clear DTC and then test drive the vehicle and check the low tire pressure warning lamp.
Does the vehicle operate without any low tire pressure warning lamp?
YES - Inspection End.
NO - Replace BCM. Refer to Service and Repair.