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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 P1410: Variable Air Duct Control System Circuit - Malfunction >> 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. Classify Power Circuit Or Control Circuit Malfunction -  If same DTC and P0102, P0103, P0403, P0661, P0662, P2009 or P2010 is present, malfunction in power circuit. Go to next step. If same DTC and P0102, P0103, P0403, P0661, P0662, P2009 or P2010 is not present, malfunction is at VAD control solenoid valve or control circuit. Go to step  6.
  4. Inspect VAD Control Solenoid Valve Connector For Poor Connection -  Disconnect VAD control solenoid valve harness connector. Inspect for poor connection (such as damaged, pulled-out terminals, corrosion). If malfunctions are not present, go to next step. If any malfunctions are present, repair or replace terminals. After repair, go to step  12.
  5. Inspect VAD Control Solenoid Valve Power Circuit For Open Circuit -  Turn ignition on, engine off. Measure voltage between VAD control solenoid valve harness connector terminal "A" (White wire) and body ground. See Fig 1. If battery voltage is present, inspect VAD control solenoid valve.
    • If VAD control solenoid valve is faulty, replace VAD solenoid valve. After repair, go to step  12.
    • If VAD control solenoid valve is okay, go to step  13.
    If battery voltage is not present, repair open in power circuit (White wire) between VAD control solenoid valve harness connector terminal "A" and main relay or replace wire harness. See ENGINE PERFORMANCE in SYSTEM WIRING DIAGRAMS article in ELECTRICAL. After repair, go to step  12.
    Fig 1: Identifying Variable Air Duct Control Solenoid Valve Circuits & Harness Connectors
    G00221519Courtesy of MAZDA MOTORS CORP.
  6. Inspect VAD Control Solenoid Valve Connector For Poor Connection -  Disconnect VAD control solenoid valve harness connector. Inspect for poor connection (such as damaged, pulled-out terminals, corrosion). If malfunctions are not present, go to next step. If any malfunctions are present, repair or replace terminals. After repair, go to step  12.
  7. Inspect VAD Control Solenoid Valve -  Perform VAD control solenoid valve inspection. Refer to VARIABLE AIR DUCT SYSTEM - MAZDA6 under RELAYS & SOLENOIDS in SYSTEM & COMPONENT TESTING - MAZDA6, MIATA, MPV, PROTEGE & PROTEGE5 article. If VAD control solenoid valve is okay, go to next step. If VAD control solenoid valve is faulty, replace VAD control solenoid valve. After repair, go to step  12.
  8. Inspect PCM Connector For Poor Connection -  Turn ignition off. Disconnect PCM harness connectors. Inspect for poor connection (such as damaged, pulled-out terminals, corrosion). If malfunction is not present, go to next step. If malfunction is present, repair terminal or replace wire harness. After repair, go to step  12.
  9. Inspect Control Circuit For Short To Ground -  Disconnect battery cables. Check for continuity in Green/White wire between VAD control solenoid valve harness connector terminal "B" (Green/White wire) and body ground. See Fig 1. If continuity is not present, go to next step. If continuity is present, repair or replace wire harness for short circuit to ground in Green/White wire between VAD control solenoid valve harness connector terminal "B" and PCM 30-pin harness connector terminal "4C". See ENGINE PERFORMANCE in SYSTEM WIRING DIAGRAMS article in ELECTRICAL. After repair, go to step  12.
  10. Inspect VAD Control Solenoid Valve Control Circuit For Short To Power -  Measure voltage between VAD control solenoid valve harness connector terminal "B" (Green/White wire) and body ground. If battery voltage is not present, go to next step. If battery voltage is present, repair or replace wire harness for short circuit to power in Green/White wire between VAD control solenoid valve harness connector terminal "B" and PCM 30-pin harness connector terminal "4C". After repair, go to step  12.
  11. Inspect Control Circuit For Open Circuit -  Check for continuity in Green/White wire between VAD control solenoid valve harness connector terminal "B" and PCM 30-pin harness connector terminal "4C". If continuity is present, go to next step. If continuity is not present, repair open circuit in Green/White wire between VAD control solenoid valve harness connector terminal "B" and PCM 30-pin harness connector terminal "4C". After repair, go to step  12.
  12. Verify Trouble Shooting Of DTC P1410 Is Completed -  Make sure to reconnect all disconnected connectors. Clear DTC from PCM memory using WDS or equivalent. Access RPM ECT and TP_REL PIDs. Start engine and warm up until ECT PID is 158°F (70°C) or more. Race engine a few times with following:
    • RPM PID more than 5800 RPM
    • TP_REL PID more than 50 percent
    Retrieve DTCs. If PENDING CODE of smae 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.
  13. 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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