How To Proceed With Troubleshooting

HINT:

Use these procedures to troubleshoot the clearance sonar system.
*: Use the intelligent tester.

VEHICLE BROUGHT TO WORKSHOP
NEXT
CUSTOMER PROBLEM ANALYSIS
Refer to HOW TO PROCEED WITH TROUBLESHOOTING .

NEXT
CHECK AND CLEAR DTC*
Refer to DTC CHECK / CLEAR .

NEXT

CHECK INITIAL CHECK FUNCTION

Refer to OPERATION CHECK .

Result

PROBLEM SYMPTOM CHART

Result	Proceed to
Symptom does not occur	A
Symptom occurs	B

B : Go to step 6

A : Go to Next Step

SYMPTOM SIMULATION
Refer to HOW TO PROCEED WITH TROUBLESHOOTING .

NEXT
CHECK MULTIPLEX COMMUNICATION SYSTEM*
Refer to HOW TO PROCEED WITH TROUBLESHOOTING .

HINT:

This ECU is connected to the multiplex communication system. Therefore, be sure to check that there are no problems in the multiplex communication system before performing troubleshooting.

NEXT
CHECK CAN COMMUNICATION SYSTEM*
Refer to HOW TO PROCEED WITH TROUBLESHOOTING .

HINT:

This ECU is connected to the CAN communication system. Therefore, be sure to check that there are no problems in the CAN communication system before performing troubleshooting.

NEXT

DTC CHECK*

Refer to DTC CHECK / CLEAR .

Result

PROBLEM SYMPTOM CHART

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

B : DTC is not output (Go to step 10 )

A : Go to Next Step

DTC CHART
Refer DIAGNOSTIC TROUBLE CODE CHART .

NEXT

Go to step 11
PROBLEM SYMPTOMS TABLE
Refer to PROBLEM SYMPTOMS TABLE .

NEXT
CIRCUIT INSPECTION
NEXT
IDENTIFICATION OF PROBLEM
NEXT
REPAIR OR REPLACE
NEXT
CONFIRMATION TEST
NEXT : END