How to Proceed With Troubleshooting

TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

HINT
* Use these procedures to troubleshoot the tire pressure warning system.
* *: Use the Techstream.
1. VEHICLE BROUGHT TO WORKSHOP

NEXT -- Continue to next step.

2. INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding.

NEXT -- Continue to next step.

3. CUSTOMER PROBLEM ANALYSIS

(a) Interview the customer to confirm the trouble.

HINT
It is important to collect as much specific information as possible from the customer to allow for a quick repair.

NEXT -- Continue to next step.

4. ADJUST TIRE PRESSURE*

(a) Turn the ignition switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the ignition switch ON.

(d) Turn the Techstream on.

(e) Read the "ID Tire Inflation Pressure" values. Enter the following menus: Chassis / Tire Pressure Monitor / Data List.

(f) Set the pressure of all the wheels to the specified value Service Precautions.

(g) Check the Data List Data List / Active Test.

HINT
* It take about 2 or 3 minutes to display the updated tire pressure data.
* If the problem is that the tire pressure decreases, wait until all of the tire pressure data is received by the ECU. If the data is received, the tire pressure warning light will goes off.

Result:





B -- Go to step 9
A -- Continue to next step.

5. CHECK FOR DTC*

(a) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.

(b) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.

(c) Recheck for DTCs Reading and Clearing Diagnostic Trouble Codes.

Result:





B -- Go to step 7
A -- Continue to next step.

6. DTC CHART

(a) Refer to the DIAGNOSTIC TROUBLE CODE CHART Tire Pressure Warning System.

NEXT -- Go to step 8

7. PROBLEM SYMPTOMS TABLE

(a) Refer to the PROBLEM SYMPTOMS TABLE Symptom Related Diagnostic Procedures.

NEXT -- Continue to next step.

8. CIRCUIT INSPECTION*

(a) Refer to the ELECTRONIC CIRCUIT INSPECTION PROCEDURE Electronic Circuit Inspection Procedure.

NEXT -- Continue to next step.

9. REPAIR OR REPLACE

(a) Repair or replace parts based on the diagnosis result.

NEXT -- Continue to next step.

10. CONFIRMATION TEST*

(a) Check the Data List to confirm that the tire inflation pressure has been received Data List / Active Test.

NEXT -- END