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Terminal Resistance & Continuity Check: Notes
- Turn the ignition switch to OFF.
- Disconnect the ECU connector.
- Measure the resistance and check for continuity between the terminals of the ECU harness-side connector while referring to the check chart. See Figure and Figure
.
NOTE:
- When measuring resistance and checking continuity, a harness for checking connect pin pressure should be used instead of inserting a test probe.
- Checks do not have to be carried out in the order given in this chart. See Figure and Figure
.
CAUTION:
If resistance or continuity checks are performed on the wrong terminals, damage to the vehicle wiring, sensors, PCM, and/or ohmmeter may occur. Use care to prevent this!
- If the ohmmeter shows any deviation from the normal condition, check the corresponding sensor, actuator and related electrical wiring, and then repair or replace.
- After repair or replacement, recheck with the ohmmeter to confirm that the repair or replacement has corrected the problem.