Lexus ES: How To Proceed With Troubleshooting
PROCEDURE
| 1. | VEHICLE BROUGHT TO WORKSHOP |
|
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| 2. | CONFIRM PROBLEM SYMPTOMS |
|
| 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 |
|
| 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 |
|
| 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 |
|
| 7. | CHECK FOR INTERMITTENT PROBLEMS |
|
| 8. | REPAIR OR REPLACE |
| NEXT | | END |
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System Diagram
SYSTEM DIAGRAM
Parts Location
PARTS LOCATION ILLUSTRATION *1 INVERTER WITH CONVERTER ASSEMBLY *2 COMPRESSOR WITH MOTOR ASSEMBLY *3 AUXILIARY BATTERY *4 FUSIBLE LINK BLOCK ASSEMBLY - BATT-S FUSE *5 BATTERY
Precaution
PRECAUTION CHARGING SYSTEM PRECAUTION CAUTION:
Orange wire harnesses and connectors indicate high-voltage circuits. To prevent electric shock, always follow the procedure described in the repair ma
SEE MORE:
Driver Side Power Mirror cannot be Adjusted with Power Mirror Switch
DESCRIPTION The outer mirror switch assembly sends the mirror adjust switch signals to the main body ECU (multiplex network body ECU). The main body ECU (multiplex network body ECU) then sends the received mirror adjust switch signals to the outer mirror control ECU assembly (driver door) via CAN co
Door Mirror ECU RH Communication Stop Mode
DESCRIPTION Detection Item Symptom Trouble Area Door Mirror ECU RH Communication Stop Mode Any of the following conditions are met:
Communication stop for "Front Door RH/R-Mirror (FR-Door/R-Mirror)" is indicated on the "Communication Bus Check" screen of the Techstream.
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