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Home >> Toyota >> 2004 >> Matrix Base, FWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 38 (Engine Controls - Self-Diagnostics) >> Diagnostic Tests >> DTC P0340: Camshaft Position (CMP) Sensor Circuit >> Diagnosis & Repair
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Diagnosis & Repair

WARNING: This page is about a different car, the 2002 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect CMP sensor connector. Using ohmmeter, measure resistance between CMP sensor terminals. Resistance should be 835-1400 ohms with engine temperature at 14-122°F (-10-50°C) or 1060-1645 ohms with engine temperature at 122-212°F (50-100°C). If resistance is as specified, go to next step. If resistance is not as specified, replace CMP sensor.
  2. Check for open or short circuits in wire harness between ECM E7 connector and CMP sensor. See WIRING DIAGRAMS article. Repair wiring as necessary. If wiring harness is okay, go to next step.
  3. Check CMP sensor for proper installation. Tighten CMP sensor as necessary. If CMP sensor is okay, replace ECM and retest.
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