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 following procedures to troubleshoot the wiper and washer system.
* Use the Techstream.

VEHICLE BROUGHT TO WORKSHOP

PROBLEM SYMPTOM CONFIRMATION

Result

RESULT CHART

Result	Proceed to
Symptom does not occur	A
Symptom occurs	B

B: GO TO STEP 4

A: Go to Next Step

SYMPTOM SIMULATION

CHECK MULTIPLEX COMMUNICATION SYSTEM*

Check for multiplex communication system DTCs

Result

RESULT CHART

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

B: PROCEED TO "MULTIPLEX COMMUNICATION SYSTEM"

A: Go to Next Step

CHECK CAN COMMUNICATION SYSTEM*

Check for CAN DTCs

Result

RESULT CHART

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

B: PROCEED TO "CAN COMMUNICATION SYSTEM"

A: Go to Next Step

PROBLEM SYMPTOMS TABLE
CIRCUIT INSPECTION
TERMINALS OF ECU
IDENTIFICATION OF PROBLEM
REPAIR OR REPLACE
CONFIRMATION TEST
NEXT: END