C1729
Description
BCM detects no vehicle speed signal.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1. DTC REPRODUCTION PROCEDURE
With CONSULT
1.Drive for several minutes at a speed of 40 km/h (25 MPH) or more, then stop the vehicle.
2.Perform "SELF-DIAG RESULTS" in "AIR PRESSURE MONITOR" of "BCM".
Is DTC "C1729" detected?
YES- Perform trouble diagnosis. Refer to "Diagnosis Procedure" .
NO- INSPECTION END
Diagnosis Procedure
1. PERFORM UNIFIED METER AND A/C AMP. SELF-DIAGNOSIS
With CONSULT
Perform "SELF-DIAG RESULTS" of "METER/M&A".
Is any DTC detected?
YES- Check the DTC. Refer to "DTC Index" Testing and Inspection.
NO- GO TO 2.
2. PERFORM SELF-DIAGNOSIS
With CONSULT
Perform "SELF-DIAG RESULTS" in "AIR PRESSURE MONITOR" of "BCM".
Is DTC "C1729" detected?
YES- Replace BCM. Refer to "Exploded View" Exploded View.
NO- GO TO 3.
3. CHECK INFORMATION
With CONSULT
1.Perform "DATA MONITOR" in "AIR PRESSURE MONITOR" of "BCM".
2.Select "BCM" in "DATA MONITOR", and check the input/output values. Refer to "Reference Value" Pinout Values and Diagnostic Parameters.
Is the inspection result normal?
YES- Check pin terminal and connection of each harness connector for malfunctioning conditions.
NO- Replace BCM. Refer to "Exploded View" Exploded View.
Special Repair Requirement
1. CHECK TIRE PRESSURE
Check all tires for tire pressures. Refer to "Tire Air Pressure" [1][2]Specifications.
Does all tire pressure data meet the specification?
YES- GO TO 2.
NO- Inspect or repair the tires or wheels and adjust the tire pressure to the specification.
2. PERFORM ID REGISTRATION
Perform ID registration. Refer to "Work Procedure" Service and Repair.
- END