Troubleshooting EFI Electronic Circuit

TROUBLESHOOTING WITH VOLT/OHMMETER

Location Of Fuses And Fusible Links:

NOTE:
- The following troubleshooting procedures are designed for inspection of each separate system, and therefore the actual procedure may vary somewhat. However, troubleshooting should be performed while referring to the inspection methods described in this program.

- Before beginning inspection, it is best to first make a simple check of the fuses, fusible links and the condition of the connectors.

- The following troubleshooting procedures are based on the supposition that the trouble lies in either a short or open circuit within the computer.

- If engine trouble occurs even though proper operating voltage is detected in the computer connector, then it can be assumed that the ECU is faulty and should be replaced.