Lexus ES: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
- Use the following procedure to troubleshoot the adaptive variable suspension system.
- *: Use the Techstream.
PROCEDURE
| 1. | VEHICLE BROUGHT TO WORKSHOP |
|
| 2. | PROBLEM SYMPTOM CONFIRMATION |
|
| 3. | INSPECT AUXILIARY BATTERY VOLTAGE |
(a) Measure the voltage of the auxiliary battery.
Standard Voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding.
|
| 4. | CHECK ECUS CONNECTED TO CAN BUS* |
(a) Check the ECUs connected to the CAN bus.
Click here .gif)
| Result | Proceed to |
|---|---|
| No malfunction appears | A |
| Malfunction appears | B |
| B |  | GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) |
|
| 5. | CHECK DTC AND FREEZE FRAME DATA* |
(a) Check for and write down any DTCs and Freeze Frame Data.
for DTC Check / Clear: Click here
for Freeze Frame Data: Click here
(b) Clear the DTCs and Freeze Frame Data.
for DTC Check / Clear: Click here
for Freeze Frame Data: Click here
(c) Recheck for DTCs.
Chassis > Air suspension > Trouble Codes| Result | Proceed to |
|---|---|
| DTCs are not output | A |
| DTCs are output | B |
| B | | GO TO DIAGNOSTIC TROUBLE CODE CHART |
|
| 6. | OVERALL ANALYSIS AND TROUBLESHOOTING* |
(a) Refer to Terminals of ECU.
Click here
(b) Refer to Data List / Active Test.
Click here
|
| 7. | REPAIR OR REPLACE |
|
| 8. | CONFIRMATION TEST |
| NEXT | | END |
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