How To Proceed With Troubleshooting

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.

HINT

Perform troubleshooting in accordance with the following flowchart
* Use the Techstream

VEHICLE BROUGHT TO WORKSHOP
INSPECT BATTERY VOLTAGE
Standard voltage:

11 to 14 V

If the voltage is below 11V, recharge or replace the battery before proceeding to the next step
CHECK AND CLEAR DTCs*

PROBLEM SYMPTOM CONFIRMATION

Result

RESULT REFERENCE

Result	Proceed to
Symptom does not occur.	A
Symptom occurs	B

B: GO TO STEP 6

A: Go to next step

SYMPTOM SIMULATION
CHECK CAN COMMUNICATION SYSTEM*
HINT

Check that there are no problems in the CAN communication system before troubleshooting the steering lock system

DTC CHECK*

Check for DTCs (See DTC CHECK/CLEAR ).

Result

RESULT REFERENCE

Result	Proceed to
DTC is output.	A
DTC is not output	B

A: GO TO STEP 9

B: Go to next step

PROBLEM SYMPTOMS TABLE

Result

RESULT REFERENCE

Result	Proceed to
Fault is not listed in problem symptoms table.	A
Fault is listed in problem symptoms table	B

B: GO TO STEP 10

A: Go to next step

DTC CHART
CIRCUIT INSPECTION*
PROBLEM IDENTIFICATION
REPAIR OR REPLACEMENT
CONFIRMATION TEST*
NEXT: END