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Home >> Toyota >> 1998 >> RAV4 Base, 2D Utility, AWD, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Tests W/Codes >> Self-Diagnostic 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 CMP sensor connector terminals. Resistance should be 835-1400 ohms (cold sensor) or 1060-1645 ohms (hot sensor).
  2. If resistance is not as specified, replace CMP sensor. If resistance is as specified, check for an open or short circuit in wiring harness between ECM and CMP sensor. See appropriate wiring diagram in WIRING DIAGRAMS article. Repair wiring as necessary. If wiring harness is okay, go to next step.
  3. Remove and inspect CMP sensor. Also inspect signal plate. Replace CMP sensor and/or camshaft timing sprocket as necessary. If both components are okay, replace ECM.
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