Meter / Gauge System How To Proceed With Troubleshooting
Meter. Lexus Gs430, Gs300. Uzs190 Grs190
VEHICLE BROUGHT TO WORKSHOP
INSPECT BATTERY VOLTAGE
CHECK MULTIPLEX COMMUNICATION SYSTEM*
CHECK CAN COMMUNICATION SYSTEM*
PROBLEM SYMPTOMS TABLE
OVERALL ANALYSIS AND TROUBLESHOOTING
ADJUST, REPAIR OR REPLACE
CONFIRMATION TEST
Meter / Gauge System -- How To Proceed With Troubleshooting |
- HINT:
- Use these procedures to troubleshoot the combination meter.
- *: Use the intelligent tester.
1.VEHICLE BROUGHT TO WORKSHOP |
2.INSPECT BATTERY VOLTAGE |
- Standard voltage:
- 11 to 14 V
If the voltage is below 11V, recharge or replace the battery before proceeding.
3.CHECK MULTIPLEX COMMUNICATION SYSTEM* |
Use the intelligent tester to check if the multiplex communication system (MPX) is functioning.
- Result:
Result
| Proceed to
|
MPX DTC is not output
| A
|
MPX DTC is output
| B
|
| Go to MULTIPLEX COMMUNICATION SYSTEM |
|
|
4.CHECK CAN COMMUNICATION SYSTEM* |
Use the intelligent tester to check if the CAN communication system is functioning.
- Result:
Result
| Proceed to
|
CAN DTC is not output
| A
|
CAN DTC is output
| B
|
| Go to CAN COMMUNICATION SYSTEM |
|
|
Refer to the Problem symptoms table (Click here).
Result
| Proceed to
|
Fault is not listed in problem symptoms table
| A
|
Fault is listed in problem symptoms table
| B
|
6.OVERALL ANALYSIS AND TROUBLESHOOTING |
Terminals of ECU (Click here)
Data List/Active Test (Click here)
On-vehicle Inspection (Click here)
7.ADJUST, REPAIR OR REPLACE |