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

*. Use the Techstream.

VEHICLE BROUGHT TO WORKSHOP
CHECK MULTIPLEX COMMUNICATION SYSTEM
CHECK AND CLEAR DTCS*
1. Refer to DTC CHECK / CLEAR

PROBLEM SYMPTOM CONFIRMATION

Result

RESULT REFERENCE

Result	Proceed to
Problem symptoms does not occur.	A
Problem symptoms occurs.	B

B: Go to step 6

A: Go to next step

SYMPTOM SIMULATION

CHECK FOR DTCs*

Check for DTCs (See DTC CHECK/CLEAR )

Result

RESULT REFERENCE

Result	Proceed to
Normal system code is output.	A
DTC is output.	B

B: Go to step 8

A: Go to next step

PROBLEM SYMPTOMS TABLE
Go to step 9
DTC CHART
CIRCUIT INSPECTION*
IDENTIFICATION OF PROBLEM
REPAIR
CONFIRMATION TEST*
NEXT: END