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HOMESERVICE MANUALSMAZDA20105 SPORT, 2.3 L, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 58 (ENGINE CONTROLS [SELF-DIAGNOSTICS 2.3L])SYSTEM TESTSELECTRONIC THROTTLE CONTROL SYSTEM INSPECTIONTHROTTLE POSITION (TP) SWEEP INSPECTION
2010 Mazda 5 Sport, 2.3 L, Standard

Throttle Position (TP) Sweep Inspection

2010 Mazda 5 Sport, 2.3 L, StandardSECTION Throttle Position (TP) Sweep Inspection
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. Connect WDS or equivalent to DLC-2.
  2. Turn ignition on.
  3. Verify none of the following DTCs are displayed: P0121, P0122, P0123, P0221, P0222, P0223, P2100, P2101, P2102, P2103, P2107, P2108, P2119, P2122, P2123, P2127, P2128, P2135, P2136. If any of these DTC are displayed, perform DTC inspection. Refer to DIAGNOSTIC TROUBLE CODE DEFINITIONS .
  4. Access TP_REL PID.
  5. Verify PID reading is within Closed Throttle Position (CTP) value. Refer to PIN VOLTAGE & PID VALUE CHARTS in PIN VOLTAGE CHARTS article. If PID reading is out of range, perform following:
    • Remove air duct from throttle valve body
    • Verify throttle valve opens when accelerator pedal is depressed
    If throttle valve opens, inspect TP sensor and related harness. If throttle valve does not open, inspect throttle actuator control motor and related harness.
  6. Gradually depress accelerator pedal and verify PID reading increases lineally. If PID reading drops momentarily, inspect TP sensor.
  7. Fully depress accelerator pedal and verify PID reading is within Wide Open Throttle (WOT) value. Refer to PIN VOLTAGE & PID VALUE CHARTS in PIN VOLTAGE CHARTS article. If the PID reading is out of range, perform the following:
    • Remove the air duct from throttle valve body.
    • Verify throttle valve opens when accelerator pedal is depressed.
    If throttle valve opens, inspect TP sensor and related harness. If throttle valve does not open, inspect throttle actuator control motor and related harness.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.