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Home >> Mazda >> 2008 >> Tribute Hybrid Touring, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Pinpoint Tests - Hybrid >> Dm: Manifold Absolute Pressure (Map) Sensor >> Test Procedure

Test Procedure

  1. DM1: CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS) 
    • Are any of the following DTCs present during PCM or transmission control module (TCM) self-test: P0106, P0107, or P0108? 
    • Yes:  For DTC P0106, GO to  DM9.

      For KOEO and KOER DTCs P0107 and P0108, GO to  DM2.

      For continuous memory DTCs P0107 and P0108, GO to  DM8.

    • No:  Unable to duplicate or identify the concern at this time.

      RETURN to SYMPTOM CHARTS for further direction.

  2. DM2: KOEO AND KOER DTCS P0107 AND P0108: CHECK THE VREF VOLTAGE TO THE MAP SENSOR 
    • MAP Sensor connector disconnected.
    • Key ON, engine OFF.
    • Measure the voltage between:
      (+) MAP Sensor Connector, Harness Side (-) MAP Sensor Connector, Harness Side
      VREF - Pin 2 SIGRTN - Pin 4
    • Is the voltage between 4 - 6 V? 
  3. DM3: INDUCE THE OPPOSITE MAP SENSOR VOLTAGE BY SIMULATING HIGH CONDITION 
    • Connect a 5 amp fused jumper wire between the following:
      Point A MAP Sensor Connector, Harness Side Point B MAP Sensor Connector, Harness Side
      MAP - Pin 1 VREF - Pin 2
    • Key ON, engine OFF.
    • Access the PCM and monitor the MAP PID.
    • Is the voltage greater than 4.75 V? 
    • Yes:  INSTALL a new MAP sensor. CLEAR the DTCs. REPEAT the self-test.
    • No:  REMOVE the jumper wire.

      GO to  DM4.

  4. DM4: CHECK THE MAP CIRCUIT FOR A SHORT TO SIGRTN AND GND IN THE HARNESS 
    • PCM connector disconnected.
    • Measure the resistance between:
      (+) MAP Sensor Connector, Harness Side (-) MAP Sensor Connector, Harness Side
      MAP - Pin 1 SIGRTN - Pin 4
    • Measure the resistance between:
      (+) MAP Sensor Connector, Harness Side (-) Vehicle Battery
      MAP - Pin 1 Negative terminal
    • Is the resistance greater than 10K ohms? 
    • Yes:  GO to  DM11.
    • No:  REPAIR the short circuit. CLEAR the DTCs. REPEAT the self-test.
  5. DM5: INDUCE THE OPPOSITE MAP SENSOR VOLTAGE BY SIMULATING LOW CONDITION 
    • Connect a 5 amp fused jumper wire between the following:
      Point A MAP Sensor Connector, Harness Side Point B MAP Sensor Connector, Harness Side
      MAP - Pin 1 SIGRTN - Pin 4
    • Key ON, engine OFF.
    • Access the PCM and monitor the MAP PID.
    • Is the voltage less than 0.1 V? 
    • Yes:  INSTALL a new MAP sensor. CLEAR the DTCs. REPEAT the self-test.
    • No:  GO to  DM6.
  6. DM6: CHECK THE MAP CIRCUIT FOR AN OPEN IN THE HARNESS 
    • PCM connector disconnected.
    • Measure the resistance between:
      (+) MAP Sensor Connector, Harness Side (-) PCM Connector, Harness Side
      MAP - Pin 1 MAP - Pin E23
    • Is the resistance less than 5 ohms? 
    • Yes:  GO to  DM7.
    • No:  REPAIR the open circuit. CLEAR the DTCs. REPEAT the self-test.
  7. DM7: CHECK THE MAP CIRCUIT FOR A SHORT TO PWR IN THE HARNESS 
    • Key ON, engine OFF.
    • Measure the voltage between:
      (+) MAP Sensor Connector, Harness Side (-)
      MAP - Pin 1 Ground
    • Is the voltage greater than 1 V? 
    • Yes:  REPAIR the short circuit to PWR. CLEAR the DTCs. REPEAT the self-test.
    • No:  GO to  DM11.
  8. DM8: CONTINUOUS MEMORY DTCS P0107 AND P0108: CHECK THE MAP CIRCUIT FOR AN INTERMITTENT CONCERN 
    • Key ON, engine OFF.
    • Access the PCM and monitor the MAP PID.
    • Carefully wiggle all accessible wiring and connectors associated with the circuit and look for a change in the PID state.
    • Lightly tap on the MAP sensor to simulate road shock.
    • Is a concern present during the wiggle test? 
    • Yes:  REPAIR as necessary.

      CLEAR the DTCs. REPEAT the self-test.

    • No:  GO to PINPOINT TEST Z .
  9. DM9: DTC P0106: MAP RANGE/PERFORMANCE 
    NOTE: If MAP DTCs P0107 or P0108 are present, diagnose those DTCs first.

    If any mass air flow (MAF) sensor related DTCs are present, diagnose those DTCs prior to diagnosing MAP DTC P0106.

    Disregard any DTCs generated as a result of this test.

    • Key in OFF position.
    • MAP Sensor connector disconnected.
    • Connect a 5 amp fused jumper wire between the following:
      Point A MAP Sensor Connector, Harness Side Point B MAP Sensor Connector, Component Side
      VREF - Pin 2 VREF - Pin 2
      SIGRTN - Pin 4 SIGRTN - Pin 4
    • Key ON, engine running.
    • Measure the voltage between:
      (+) MAP Sensor Connector, Harness Side (-)
      MAP - Pin 1 Ground
    • Is the voltage between 1 - 2 V? 
    • Yes:  GO to  DM10.
    • No:  CHECK the MAP harness for open and short circuits.
  10. DM10: COMPARE ACTUAL MAP VOLTAGE TO MAP_V PID VOLTAGE 
    • Key ON, engine OFF.
    • Record the actual MAP voltage values at KOEO, idle,
    • 1,000 and 2,000 RPM.
    • Record the MAP_V PID voltage values at KOEO, idle, 1,000 and 2,000 RPM.
    • Does the MAP V PID voltage stay within 0.5 volt of the actual MAP voltage? 
    • Yes:  Unable to duplicate or identify the concern at this time.

      GO to PINPOINT TEST Z .

    • No:  INSTALL a new MAP sensor.

      CLEAR the DTCs. REPEAT the self-test.

  11. DM11: CHECK FOR CORRECT PCM OPERATION 
    • Disconnect all the PCM connectors.
    • Visually inspect for:
      • pushed out pins
      • corrosion
    • Connect all the PCM connectors and make sure they seat correctly.
    • Carry out the PCM self-test and verify the concern is still present.
    • Is the concern still present? 
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