C1729

C1729 VEHICLE SPEED SIG ERR

Description
BCM detects no vehicle speed signal.

DTC Logic

C1729:

DTC CONFIRMATION PROCEDURE

1.VEHICLE DRIVING

With CONSULT-III
Drive at speed 40 km/h (25 MPH) or more for several minutes without stopping.
Does "DATA MONITOR" displayed the standardized value without turning low pressure warning lamp ON?
YES >> INSPECTION END
NO >> Go to diagnosis procedure. Refer to "Diagnosis Procedure".

Diagnosis Procedure

1.CHECK SELF-DIAGNOSTIC RESULTS

With CONSULT-III
1. On "SELECT DIAG MODE", select the "SELF-DIAG RESULT" screen.
2. Check display contents in self-diagnostic results.
Is the "CAN COMM CIRCUIT" displayed in the self-diagnosis display?
YES >> Perform trouble diagnosis for CAN communication system. Refer to LAN-16, "Trouble Diagnosis Flow Chart". Diagnosis and Repair Workflow
NO >> Check unified meter and A/C amp. Refer to MWI-83, "Reference Value". Unified Meter and A/C AMP.

Special Repair Requirement

1.CHECK TIRE AIR PRESSURE
Check all tire air pressures. Refer to WT-98, "Tire". [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 WT-5, "ID REGISTRATION PROCEDURE: Special Repair Requirement". Transmitter ID Registration Procedure
Can ID registration of all transmitters be completed?
YES >> END
NO >> GO TO 1.