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Home >> Toyota >> 2004 >> Matrix Base, FWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 21 (Engine Control System Self-Diagnostics - V8) >> Diagnostic Tests >> DTC P0330: Knock Sensor No. 2 Circuit >> Diagnosis & Repair
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Diagnosis & Repair

WARNING: This page is about a different car, the 2002 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.
  1. Connect Toyota hand-held tester or scan tool to Data Link Connector (DLC) No. 3 at driver's side of instrument panel. See Figure. Disconnect EC1 electrical connector on 4WD models or EC2 electrical connector on 2WD models. See Figure. EC1 electrical connector is an in-line Dark Gray 6-pin electrical connector located near the starter. EC2 electrical connector is an in-line Gray 3-pin electrical connector located near the starter.
  2. Note wire terminal identification in male side of EC1 or EC2 electrical connector. See Figure and Figure . On 2WD models, remove wires from terminals No. 2 (Black wire) and 3 (Gray wire) in male side of EC2 electrical connector. Reverse wire location for terminals No. 2 and 3 and reinstall wires in male side of EC2 electrical connector. Reconnect EC2 electrical connector. On 4WD models, remove wires from terminals No. 2 (Black wire) and 3 (Gray wire) in male side of EC1 electrical connector. Reverse wire location for terminals No. 1 and 2 and reinstall wires in male side of EC1 electrical connector. Reconnect EC1 electrical connector.
  3. On all models, turn ignition on and then turn hand-held tester or scan tool on. Using Toyota hand-held tester or scan tool, clear DTCs from ECM. Start engine and warm engine to normal operating temperature. Suddenly accelerate engine to 4000 RPM 3 consecutive times. Recheck for DTCs. If DTC P0330 still exists and DTC did not change from original DTC of P0330, go to next step. If DTC changes from original DTC of P0330 to P0325, go to step  5.
  4. Check for open and short in wiring harness and electrical connectors between EC1 electrical connector (4WD models) or EC2 electrical connector (2WD models) and ECM for knock sensor No. 2. See WIRING DIAGRAMS article. ECM is located behind glove box and heater duct. See Figure. If wiring harness or electrical connector is defective, repair as necessary. If wiring harness and electrical connectors are okay, replace ECM.
  5. Check for open and short in wiring harness and electrical connectors between EC1 electrical connector (4WD models) or EC2 electrical connector (2WD models) and knock sensor No. 2. See WIRING DIAGRAMS article. Knock sensor No. 2 is located below intake manifold on cylinder block. See Figure. If wiring harness or electrical connector is defective, repair as necessary. If wiring harness and electrical connectors are okay, replace knock sensor No. 2. See KNOCK SENSOR under ENGINE SENSORS & SWITCHES in REMOVAL, OVERHAUL & INSTALLATION - V6 & V8 article.
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