Lexus ES manuals

Lexus ES: How To Proceed With Troubleshooting

Lexus ES (XZ10) Service Manual / Suspension / Suspension Control / Adaptive Variable Suspension System / 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
NEXT

2.

PROBLEM SYMPTOM CONFIRMATION
NEXT

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.

NEXT

4.

CHECK ECUS CONNECTED TO CAN BUS*

(a) Check the ECUs connected to the CAN bus.

Click here

Result

Proceed to

No malfunction appears

A

Malfunction appears

B
B

GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING)

A

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

Chassis > Air suspension > Trouble Codes

(b) Clear the DTCs and Freeze Frame Data.

for DTC Check / Clear: Click here

for Freeze Frame Data: Click here

Chassis > Air suspension > Clear DTCs

(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

A

6.

OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Refer to Terminals of ECU.

Click here

(b) Refer to Data List / Active Test.

Click here

NEXT

7.

REPAIR OR REPLACE
NEXT

8.

CONFIRMATION TEST
NEXT

END

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