Lin Communication System How To Proceed With Troubleshooting
VEHICLE BROUGHT TO WORKSHOP
CUSTOMER PROBLEM ANALYSIS
INSPECT BATTERY VOLTAGE
INSPECT COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*
OVERALL ANALYSIS AND TROUBLESHOOTING
REPAIR OR REPLACE
CONFIRMATION TEST
Lin Communication System -- How To Proceed With Troubleshooting |
- HINT:
- Use the following procedure to troubleshoot the LIN communication system.
- *: Use the Techstream.
| 1.VEHICLE BROUGHT TO WORKSHOP |
| 2.CUSTOMER PROBLEM ANALYSIS |
- 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:
What
| Vehicle, system name
|
When
| Date, time, occurrence frequency
|
Where
| Road conditions
|
Under what conditions?
| Driving conditions, weather conditions
|
How did it happen?
| Problem symptoms
|
| 3.INSPECT BATTERY VOLTAGE |
Measure the battery voltage.
- Standard Voltage:
- 11 to 14 V
- HINT:
- If the voltage is below 11 V, recharge or replace the battery before proceeding.
| 4.INSPECT COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM* |
Using the Techstream, inspect the LIN communication function to ensure there are no malfunctions in the communication system (COROLLA_ZRE142 RM000002XHS04WX.html ).
- Result:
Result
| Proceed to
|
No DTCs output
| A
|
DTCs output
| B
|
| 5.OVERALL ANALYSIS AND TROUBLESHOOTING |
Terminals of ECU (COROLLA_ZRE142 RM000002XHL051X.html)