Sensors & Circuits
- If any of the sensors and/or circuits fail, feedback system will NOT operate properly. To check sensors and circuits, ensure ignition is off. Disconnect ECM connector at ECM.
- Attach an ohmmeter between terminal No. 1 (ground) and corresponding sensor terminal. See Fig 1 and Fig 2 . If any circuit is not within specifications, component and/or circuit is defective. Replace or repair as necessary.