Initial Inspection and Diagnostic Overview

DIAGNOSIS AND REPAIR WORK FLOW

Work Flow


DETAILED FLOW


1. COLLECT THE INFORMATION FROM THE CUSTOMER

It is also important to clarify customer concerns before starting the inspection. Reproduce the symptom, and understand it fully. Interview the customer about the concerns carefully. In some cases, it is necessary to check the symptoms by driving the vehicle with the customer.

CAUTION:
Customers are not professionals. Never assume"maybe the customer means..." or "maybe the customer mentioned this symptom.
- GO TO 2.

2. BASIC INSPECTION

1.Turn the ignition switch ON.

CAUTION:
Never start the engine.
2.Check the tire pressure for all wheels and adjust to the specified value. Refer to "Tire Air Pressure" [1][2]Specifications.
Is the inspection result normal?
YES- GO TO 3.
NO- Inspect or repair the tires or wheels.

3. CHECK LOW TIRE PRESSURE WARNING LAMP STATUS

Check low tire pressure warning lamp display.
Does not low tire pressure warning lamp turn OFF?
YES- GO TO 4.
NO- GO TO 8.

4. CHECK DTC WITH LOW TIRE PRESSURE WARNING CONTROL UNIT

With CONSULT
Perform the self-diagnosis.
Is any DTC detected?
YES- GO TO 5.
NO- GO TO 8.

5. ERASE DTC MEMORY

With CONSULT
1.Record or print DTC and freeze frame data (FFD).
2.Erase DTC once.
NOTE:
After erasing DTC record, currently occurred DTC can be detected by reading out DTC again.
- GO TO 6.

6. PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT
Perform "DTC CONFIRMATION PROCEDURE" (self-diagnosis) with recorded DTC.
If two or more DTCs are detected, refer to "DTC Inspection Priority Chart" Low Tire Pressure Warning Control Unit and determine trouble diagnosis order.
Is any malfunction detected by self-diagnosis?
YES- GO TO 7.
NO- GO TO 8.

7. DETECT MALFUNCTIONING PART BY DIAGNOSIS PROCEDURE

Perform the diagnosis applicable to the displayed DTC. Refer to "DTC Index" Testing and Inspection.
- GO TO 10.

8. CRUISE FOR SYMPTOM CHECK

1.Start the engine.
2.Drive for several minutes at a speed of 40 km/h (25 MPH) or more, then stop the vehicle.
- GO TO 9.

9. PERFORM DIAGNOSIS BY SYMPTOM

Perform trouble diagnosis or repair applicable to the symptom. Refer to "Symptom Table" TPMS Symptoms.
- GO TO 11.

10. FINAL CHECK (WHEN DTC WAS DETECTED)

With CONSULT
Perform "DTC CONFIRMATION PROCEDURE" (self-diagnosis) with applicable DTC.
Is any malfunction detected by self-diagnosis?
YES- GO TO 7.
NO- INSPECTION END

11. FINAL CHECK (WHEN SYMPTOM OCCURRED)

Make sure that the symptom is not detected.
Does symptom remain?
YES- GO TO 9.
NO- INSPECTION END