Ignition Signal

Description

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


DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. CHECK SELF-DIAGNOSTIC RESULTS

Perform "SELF-DIAG RESULTS" in "AIR PRESSURE MONITOR" of "BCM".
Is DTC "C1735" detected?
YES- Perform trouble diagnosis. Refer to "Diagnosis Procedure" .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK IGNITION SIGNAL

With CONSULT
1.Perform "DATA MONITOR" of "BCM".
2.Select "BCM" in "DATA MONITOR", and check the "IGN SW CAN". Refer to "Reference Value" Pinout Values and Diagnostic Parameters.
Is the inspection result normal?
YES- GO TO 2.
NO- Perform CAN diagnosis. Refer to "CAN System Specification Chart" CAN System Specification Chart.

2. CHECK POWER SUPPLY CIRCUIT

Check BCM power supply circuit. Refer to "Diagnosis Procedure" Power Supply And Ground Circuit.
Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace damaged parts.

3. CHECK SELF-DIAGNOSTIC RESULTS

With CONSULT
1.Drive for 3 minutes at a speed of 40 km/h (25 MPH) or more, then drive normally for 10 minutes.
2.Perform "SELF-DIAG RESULTS" in "AIR PRESSURE MONITOR" of "BCM".
Is DTC "C1735" detected?
YES- Replace BCM. Refer to "Exploded View" Exploded View.
NO- INSPECTION END