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Home >> Mazda >> 2008 >> Tribute Hybrid Touring, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Pinpoint Tests - Hybrid >> Te: Motor Shutdown >> Test Procedure

Test Procedure

  1. TE1: KEY ON ENGINE OFF (KOEO) AND CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODE (DTC) P1A03: VERIFY THAT THE CONCERN IS PRESENT 
    NOTE: Clearing the transaxle control module (TCM) DTCs erases any TCM recorded freeze frame data. Make sure to record any TCM freeze frame information before proceeding any further. Refer to the scan tool instruction manual for freeze frame PID menu.
    • Clear and retrieve TCM continuous DTCs.
    • Is DTC P1A03 present? 
    • Yes:  GO to  TE2.
    • No:  GO to  TE9.
  2. TE2: CHECK FOR MSDN REQUEST FROM PCM 
    • Key ON, engine OFF.
    • Access the TCM and monitor the M_SDN_A PID.
    • Is the PID state ON? 
    • Yes:  DIAGNOSE the motor shutdown request from the E-Quizzer.

      GO to  QE4.

    • No:  GO to  TE3.
  3. TE3: CHECK FOR MSDN REQUEST FROM PCM 
    • Key ON, engine OFF.
    • Access the TCM and monitor the M_SDN_C PID.
    • Is the PID state ON? 
    • Yes:  GO to  TE4.
    • No:  GO to  QE4.
  4. TE4: CHECK THE MSDN CIRCUIT FOR AN OPEN IN THE HARNESS 
    • Key in OFF position.
    • PCM connector disconnected.
    • Transaxle Assembly-B connector disconnected.
    • Measure the resistance between:
      (+) PCM Connector, Harness Side (-) Transaxle Assembly-B Connector, Harness Side
      MSDN - Pin T11 MSDN - Pin 5
    • Is the resistance less than 5 ohms? 
    • Yes:  GO to  TE5.
    • No:  REPAIR the circuit.

      CLEAR the DTCs. REPEAT the self-test.

  5. TE5: CHECK THE MSDN CIRCUIT FOR A SHORT TO VOLTAGE IN THE HARNESS 
    • Key ON, engine OFF.
    • Measure the voltage between:
      (+) PCM Connector, Harness Side (-) Vehicle Battery
      MSDN - Pin T11 Negative terminal
    • Is the voltage less than 1 V? 
    • Yes:  GO to  TE6.
    • No:  REPAIR the circuit.

      CLEAR the DTCs. REPEAT the self-test.

  6. TE6: CHECK THE MSDN CIRCUIT FOR A SHORT TO GROUND IN THE HARNESS 
    • Key in OFF position.
    • Measure the resistance between:
      (+) PCM Connector, Harness Side (-) Vehicle Battery
      MSDN - Pin T11 Negative terminal
    • Is the resistance greater than 10K ohms? 
    • Yes:  GO to  TE7.
    • No:  REPAIR the circuit.

      CLEAR the DTCs. REPEAT the self-test.

  7. TE7: CHECK FOR THE MSDN CIRCUIT SHORTED TO CIRCUITS IN THE SAME HARNESS 
    • Measure the resistance between:
      (+) Transaxle Assembly-B Connector, Harness Side (-) Transaxle Assembly-B Connector, Harness Side
      MSDN - Pin 5 CTO - Pin 1
      MSDN - Pin 5 TGAC - Pin 9
      MSDN - Pin 5 TMAC - Pin 4
      MSDN - Pin 5 GSDN - Pin 10
      MSDN - Pin 5 ISDN2 - Pin 7
    • Are the resistances greater than 10K ohms? 
    • Yes:  GO to  TE8.
    • No:  REPAIR the circuit.

      CLEAR the DTCs. REPEAT the self-test.

  8. TE8: MSDN FUNCTIONAL TEST 
    • PCM connector connected.
    • Transaxle Assembly-B connector connected.
    • Isolate the pin from the PCM connector.
    • Connect a 5 amp fused jumper wire between the following:
      Point A PCM Connector, Harness Side Point B PCM Connector, Harness Side
      MSDN - Pin T11 GSDN - Pin T9
    • Key ON, engine OFF.
    • Access the TCM and monitor the M_SDN_C PID.
    • Is the PID state OFF? 
  9. TE9: RECREATE THE SYMPTOM USING ALL AVAILABLE DATA 
    NOTE: The vehicle may need to be driven in order to recreate the original conditions that set the DTC or caused the symptom.
    • Access the freeze frame data (if available) and record the DTC conditions.
    • Clear the TCM DTCs.
    • Obtain information from the customer information worksheet or any other available data from the customer.
    • Access the TCM and monitor the M_SDN_A and M_SDN_C PIDs.
    • Recreate the symptom using the freeze frame and customer information.
    • When the symptom occurs, press the trigger to begin recording. Refer to the scan tool instruction manual for information on the recorder function.
    • Could the symptom be recreated? 
  10. TE10: CHECK FOR REQUEST FROM PCM 
    NOTE: Use the data recorded in the Pinpoint Test Step TE9.
    • Does the M_SDN_A PID display ON when the symptom occurs? 
    • Yes:  DIAGNOSE the motor shutdown request from the PCM.
    • No:  GO to  TE11.
  11. TE11: CHECK THE MSDN CIRCUIT FREQUENCY AT THE TCM 
    NOTE: Use the data recorded in the Pinpoint Test Step TE9.
    • Does the M_SDN_C PID display ON when the symptom occurs? 
  12. TE12: CHECK THE MSDN CIRCUIT FOR AN INTERMITTENT CONCERN 
    • Key ON, engine OFF.
    • Access the TCM and monitor the M_SDN_C PID.
    • Carefully wiggle all accessible wiring and connectors associated with the circuit and look for a change in the PID state.
    • 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 .
  13. TE13: 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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