Symptom Related Diagnostic Procedures

If a normal code is displayed during the DTC check but the trouble still occurs, check the circuits for each symptom in the order given in the charts on the following images and proceed for troubleshooting.
The Matrix Chart is divided into 3 chapters.
Chapter 1: Electronic Circuit Matrix Chart
Chapter 2: On-Vehicle Repair Matrix Chart
Chapter 3: Off-Vehicle Repair Matrix Chart
When troubleshooting, check Chapter 1 first. If instructions are given in Chapter 1 to proceed to Chapter 2 or 3, proceed as instructed.
1. If the instruction Proceed to next circuit inspection shown on matrix chart is given in the flow chart for each circuit, proceed to the circuit with the next highest number in the table to continue the check.
2. If the trouble still occurs even though there are no abnormalities in any of the other circuits, then check or replace the ECM.





Chapter 1. Electronic Circuit

On-Vehicle Repair Matrix Chart Part 1:

On-Vehicle Repair Matrix Chart Part 2:

Chapter 2. On-Vehicle Repair

Off-Vehicle Repair Matrix Chart Part 1:

Off-Vehicle Repair Matrix Chart Part 2:

Chapter 3. Off-Vehicle Repair