C1729

C1729 VEHICLE SPEED SIG ERR





Description
Uses CAN communications from the ABS actuator and electric unit (control unit) to receive the vehicle speed signal, and activates the Tire Pressure Monitoring System (TPMS) when the vehicle speed is 40 km/h
(25MPH) or more.




DTC Logic

DTC logic

DTC Detection Logic:

DTC REPRODUCTION PROCEDURE
1.DTC REPRODUCTION PROCEDURE
With CONSULT-III
1. Drive for several minutes at a speed of 40 km/h (25MPH) or more, then stop the vehicle.
2. Perform self-diagnosis of the low tire pressure warning control unit.
Is DTC "C1729" detected?
YES - Perform trouble diagnosis. Refer to C1729.
NO - INSPECTION END




Diagnosis Procedure
1.PERFORM ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS
With CONSULT-III
Perform self-diagnosis of the ABS actuator and electric unit (control unit).
Is DTC detected?
YES - Check malfunctioning circuit.
NO - GO TO 2.
2.PERFORM THE SELF-DIAGNOSIS
With CONSULT-III
Perform self-diagnosis of the low tire pressure warning control unit.
Is DTC "C1729" detected?
YES - Replace the low tire pressure warning control unit.
NO - GO TO 3.
3.CHECK INFORMATION
With CONSULT-III
Use CONSULT-III "DATA MONITOR" to check the input/output values. Refer to Testing and Inspection.
Is the inspection result normal?
YES - Check pin terminal and connection of each harness connector for malfunctioning conditions.
NO - Replace the low tire pressure warning control unit.