How To Proceed With Troubleshooting

MIRROR: POWER MIRROR CONTROL SYSTEM (w/ Memory): HOW TO PROCEED WITH TROUBLESHOOTING

HOW TO PROCEED WITH TROUBLESHOOTING
HINT:
- Use these procedures to troubleshoot the power door lock control system.
- Techstream should be used in steps 4 and 5.

1. VEHICLE BROUGHT TO WORKSHOP
NEXT -- Continue to next step.
2. CUSTOMER PROBLEM ANALYSIS CHECK
HINT:
- In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
- Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.

- The following 5 items are important points in the problem analysis:






NEXT -- Continue to next step.
3. 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.
4. INSPECT COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN)
(a) Use Techstream to check if the Multiplex Communication System (MPX) is functioning normally Reading and Clearing Diagnostic Trouble Codes.
Result:






B -- Go to MULTIPLEX COMMUNICATION SYSTEM
A -- Continue to next step.
5. PROBLEM SYMPTOMS TABLE
Result:






B -- After repair, go to step 8
A -- Continue to next step.
6. OVERALL ANALYSIS AND TROUBLESHOOTING
(a) Terminals of ECU
Pinout Values and Diagnostic Parameters
(b) DATA LIST/ACTIVE TEST
Scan Tool Testing and Procedures
NEXT -- Continue to next step.
7. REPAIR OR REPLACE
NEXT -- Continue to next step.
8. CONFIRMATION TEST
NEXT -- END