Basic Troubleshooting Guide

Bring Vehicle to Workshop
Analyze Customer's Problem
- Ask the customer about the conditions and environment relative to the issue (Use CUSTOMER PROBLEM ANALYSIS SHEET ).
Verify Symptom, and then Check DTC and Freeze Frame Data
- Connect Hi-Scan (Pro) to Diagnostic Link Connector (DLC).
- Record the DTC and freeze frame data.
NOTE: To erase DTC and freeze frame data, refer to Step 5.
Confirm the Inspection Procedure for the System or Part
- Using the SYMPTOM TROUBLESHOOTING GUIDE CHART , choose the correct inspection procedure for the system or part to be checked.
Erase the DTC and Freeze Frame Data
WARNING: NEVER erase DTC and freeze frame data before completing Step 2 MIL/DTC.
Inspect Vehicle Visually
- Go to Step 11, if you recognize the problem.
Recreate (Simulate) Symptoms the DTC
- Try to recreate or simulate the symptoms and conditions of the malfunction as described by customer.
- If DTC(s) is/are displayed, simulate the condition according to troubleshooting procedure for the DTC.
Confirm Symptoms of Problem
- If DTC(s) is/are not displayed, go to Step 9.
- If DTC(s) is/are displayed, go to Step 11.
Recreate (Simulate) Symptom
- Try to recreate or simulate the condition of the malfunction as described by the customer.
Check the DTC
- If DTC(s) does (do) not occur, refer to INTERMITTENT PROBLEM PROCEDURE .
- If DTC(s) occur(s), go to Step 11.
Perform TROUBLESHOOTING PROCEDURE for DTC
Adjust or repair the vehicle
Confirmation test
END