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Home >> Toyota >> 1996 >> Tercel Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Tests W/Codes >> Circuit Tests >> DTC P0340 - Camshaft Position (CMP) Sensor Circuit >> Diagnosis & Repair
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Diagnosis & Repair

  1. Disconnect CMP sensor connector. Using ohmmeter, measure resistance between sensor connector terminals. Resistance should be 985-1600 ohms (cold sensor) or 1265-1890 ohms (hot sensor).
  2. Replace sensor as necessary. If sensor is okay, inspect circuits between ECM and CMP sensor for open or short. See appropriate wiring diagram in WIRING DIAGRAMS article. Repair as necessary.
  3. If both circuits are okay, remove and inspect sensor. Also inspect signal plate. Replace as necessary. If both components are okay, replace ECM and retest.
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