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Home >> Mazda >> 2003 >> 6 i, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls [Self-Diagnostics 2.3L] >> System Tests >> Electronic Throttle Control System Inspection >> Throttle Position (TP) Sweep Inspection
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Throttle Position (TP) Sweep Inspection

  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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