How To Proceed With Troubleshooting

DOOR LOCK: KEY REMINDER WARNING SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

HINT
* Use the following procedures to troubleshoot the key reminder warning system.
* Techstream should be used in steps 3 and 5.
1. VEHICLE BROUGHT TO WORKSHOP

NEXT -- Continue to next step.

2. INSPECT BATTERY VOLTAGE

(a) Measure the battery voltage.

Standard voltage:

10 to 14 V

(a) If the voltage is below 10 V, recharge or replace the battery before proceeding to the next step.

NEXT -- Continue to next step.

3. INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM (CAN)

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

(1) (ECU connected, communication line malfunctioning) If no code is output, proceed to A.

(2) (ECU connected, communication line malfunctioning) If any code is output, proceed to B.

B -- GO TO CAN COMMUNICATION SYSTEM
A -- Continue to next step.

4. PROBLEM SYMPTOMS TABLE

(a) If the fault is not listed in the problem symptoms table, proceed to A.

(b) If the fault is listed in the problem symptoms table, proceed to B.

B -- Go to step 6
A -- Continue to next step.

5. OVERALL ANALYSIS AND TROUBLESHOOTING

(a) DATA LIST Key Reminder Warning System

(b) TERMINALS OF ECU Key Reminder Warning System

NEXT -- Continue to next step.

6. REPAIR OR REPLACE

NEXT -- Continue to next step.

7. CONFIRMATION TEST

NEXT -- END