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Home >> Mazda >> 2002 >> Tribute LX, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 60 (Engine Controls [Self-Diagnostics 2.3L]) >> Diagnostic Tests >> DTC P2089: Oil Control Valve Actuator Circuit - High Input >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2003 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
  1. If FREEZE FRAME DATA has been recorded, go to next step. If FREEZE FRAME DATA has not been recorded, record FREEZE FRAME DATA. Go to next step.
  2. Verify Related Repair Information Availability -  Check for related Service Bulletins and/or on-line repair information availability. If any related repair information is available, perform repair or diagnosis according to available repair information. If vehicle is not repaired, go to next step. If related repair information is not available, go to next step.
  3. Inspect OCV Connector For Poor Connection -  Disconnect OCV harness connector. Inspect for poor connection (such as damaged, pulled-out pins, corrosion). If malfunction is not present, go to next step. If malfunction is present, repair or replace terminal. After repair, go to step  7.
  4. Inspect OCV -  Perform OCV Inspection. Refer to OIL CONTROL VALVE - MAZDA6 & MIATA ONLY under VARIABLE VALVE TIMING in SYSTEM & COMPONENT TESTING - MAZDA6, MIATA, MPV, PROTEGE & PROTEGE5 article. If OCV is okay, go to next step. If OCV is faulty, replace OCV. After repair, go to step  7.
  5. Inspect PCM Connector For Poor Connection -  Disconnect PCM harness connectors. Inspect for poor connection (such as damaged, pulled-out terminals, corrosion) at PCM 30-pin harness connector terminal "4M" (Brown/Yellow wire). If malfunction is not present, go to next step. If malfunction is present, repair or replace terminal. After repair, go to step  7.
  6. Inspect OCV Control Circuit For Short To Power -  Remove OCV. Turn ignition on, engine off. Measure voltage between PCM 30-pin harness connector terminal "4M" and body ground. See Figure. If battery voltage is not present, go to next step. If battery voltage is present, repair short circuit to power in Brown/Yellow wire between OCV harness connector terminal "A" and PCM 30-pin harness connector terminal "4M" or replace wire harness. See ENGINE PERFORMANCE in SYSTEM WIRING DIAGRAMS article in ELECTRICAL. After repair, go to next step.
  7. Verify Trouble Shooting Of DTC P2089 Is Completed -  Make sure to reconnect all disconnected connectors. Clear DTC from PCM memory using WDS or equivalent. Turn ignition off. Start engine and warm up completely. If PENDING CODE of same DTC is not present, go to next step. If PENDING CODE of same DTC is present, replace PCM. For PCM removal and installation, see POWERTRAIN CONTROL MODULE under COMPUTERIZED ENGINE CONTROLS in REMOVAL & INSTALLATION article. After repair, go to next step.
  8. Verify After Repair Procedure -  Using scan tool, perform After Repair Procedure. See AFTER REPAIR PROCEDURE . If any DTCs are present, go to appropriate DTC inspection. Refer to DIAGNOSTIC TROUBLE CODE DEFINITIONS . If no DTCs are present, trouble shooting is complete.
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