Symptom Related Diagnostic Procedures
MATRIX CHART OF PROBLEM SYMPTOMSIf a normal code is displayed during the diagnostic trouble code check but the trouble still occurs, check the circuits for each symptom in the order given in the charts.
The Matrix Chart is divided into 3 parts. Part 1: Electronic Circuit Matrix Chart. Part 2: On-vehicle Repair Matrix Chart. Part 3: Off-vehicle Repair Matrix Chart. When troubleshooting, check Part 1 first. If instructions are given in Part 1 to proceed to Part 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.
Electronic Circuit
On-vehicle Repair
Off-vehicle Repair