Lexus ES: How To Proceed With Troubleshooting
PROCEDURE
| 1. | VEHICLE BROUGHT TO WORKSHOP |
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| 2. | CONFIRM PROBLEM SYMPTOMS |
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| 3. | CUSTOMER PROBLEM ANALYSIS |
(a) Check if the vehicle has been jump started due to a discharged auxiliary battery.
| Result | Proceed to |
|---|---|
| The vehicle has never been jump started. | A |
| The vehicle has been jump started due to a discharged auxiliary battery. | B |
| B | .gif) | GO TO ON-VEHICLE INSPECTION / CHECK AUXILIARY BATTERY VOLTAGE |
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| 4. | CAN COMMUNICATION SYSTEM CHECK |
(a) Using the Techstream, display the CAN Bus Check screen and check that all ECUs and sensors that are connected to the CAN communication system are displayed on the screen.
| NG | | GO TO CAN COMMUNICATION SYSTEM |
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| 5. | CHECK FOR DTCS |
| Result | Proceed to |
|---|---|
| DTCs are not output. | A |
| DTCs are output. | B |
| B | | GO TO DTC CHART |
|
| 6. | ON-VEHICLE INSPECTION |
| Result | Proceed to |
|---|---|
| Malfunctioning area has not been determined. | A |
| Malfunctioning area has been determined. | B |
| B | | GO TO STEP 8 |
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| 7. | CHECK FOR INTERMITTENT PROBLEMS |
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| 8. | REPAIR OR REPLACE |
| NEXT | | END |
