How To Proceed With Troubleshooting

SEAT: SEAT HEATER SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

HINT
* Use these procedures to troubleshoot the seat heater 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. INSPECT ELECTRIC POWER CONTROL SYSTEM*

(a) Using the Techstream, check if the electric power control system is functioning normally.

Result





(b) Using the Techstream, check the electric power control system's load control history Operation Check.

B -- Go to ELECTRIC POWER CONTROL SYSTEM How to Proceed With Troubleshooting
A -- Continue to next step.

4. INSPECT COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

(a) Using the Techstream to check if the LIN communication system is functioning normally.

Result





B -- Go to LIN COMMUNICATION SYSTEM LIN Communication System
A -- Continue to next step.

5. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Use the Techstream to check if the CAN communication system is functioning normally.

Result





B -- Go to CAN COMMUNICATION SYSTEM How to Proceed With Troubleshooting
A -- Continue to next step.

6. 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 9
A -- Continue to next step.

7. PROBLEM SYMPTOMS TABLE

Result





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

8. OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Data List / Active Test Scan Tool Testing and Procedures.

(b) Terminals of ECU Pinout Values and Diagnostic Parameters.

(c) Operation Check Operation Check.

NEXT -- Continue to next step.

9. REPAIR OR REPLACE

NEXT -- Continue to next step.

10. CONFIRMATION TEST

NEXT -- END