C1754

DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PERFORM DTC CONFIRMATION

With CONSULT
1.Drive for 3 minutes at a speed of 40 km/h (25 MPH) or more without stopping.
2.Stop the vehicle.
3.Perform self-diagnosis for "AIR PRESSURE MONITOR".
Is DTC "C1754" detected?
YES- Proceed to "Diagnosis Procedure" .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK LOW TIRE PRESSURE WARNING CONTROL UNIT POWER SUPPLY AND GROUND CIRCUIT

Perform the trouble diagnosis for power supply and ground circuit. Refer to "Diagnosis Procedure" Power Supply and Ground Circuit.
Is the inspection result normal?
YES- GO TO 2.
NO- Repair or replace error-detected parts.

2. CHECK TIRE PRESSURE RECEIVER CIRCUIT

1.Disconnect the tire pressure receiver harness connector.
2.Check the continuity between the low tire pressure warning control unit harness connector and tire pressure receiver harness connector.





3.Check the continuity between the low tire pressure warning control unit harness connector and ground.





Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace the malfunctioning harness or connector.

3. PERFORM SELF-DIAGNOSIS AGAIN

With CONSULT
1.Check the tire pressure for all wheels and adjust to the specified value. Refer to "Tire Air Pressure" [1][2]Specifications.
2.Perform tire pressure sensor ID registration for all wheels. Refer to "Work Procedure" ID Registration.
3.Perform "DTC CONFIRMATION PROCEDURE" (self-diagnosis) again. Refer to "DTC Logic" .
Is DTC "C1754" detected?
YES- Replace the low tire pressure warning control unit. Refer to "Removal and Installation" Removal and Installation.
NO- Check for looseness or damage at the harness connector pins of the low tire pressure warning control unit. Repair or replace if necessary.