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Home >> Mazda >> 2008 >> Tribute Hybrid Touring, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Pinpoint Tests - Hybrid >> TU: Calculated Torque Error >> Test Procedure

Test Procedure

  1. TU1: KEY ON ENGINE OFF (KOEO) AND CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODE (DTC) P1145: VERIFY THAT THE CONCERN IS PRESENT 
    NOTE: Clearing the transaxle control module (TCM) DTCs will erase 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 P1145 present? 
    • Yes:  GO to  TU2.
    • No:  GO to  TU6.
  2. TU2: CHECK THE DTCFZ PID FOR A DTC DETAIL NUMBER 
    NOTE: The DTCFZ PID is a freeze frame PID.
    • Access the TCM and monitor the DTCFZ PID.
    • Does the DTCFZ PID indicate freeze detail number 41, 42, 61, 62 or 178 present? 
  3. TU3: CHECK THE TCM TOTAL TORQUE DESIRED PID VALUE IN REVERSE 
    NOTE: Do not apply the brake pedal when recording the PID value because it may produce false readings.
    NOTE: Refer to the scan tool instruction manual for information on the recorder function.
    • Key ON, engine running.
    • Gear selector in REVERSE position.
    • Access the TCM and monitor the TQ_DSD PID.
    • Record the PID value when driving the vehicle in REVERSE.
    • Is the torque between -4,000 - 0 Nm (-2,950.2 - 0 lb ft)? 
    • Yes:  GO to  TU4.
    • No:  GO to  TU11.
  4. TU4: CHECK THE TCM TOTAL TORQUE DESIRED PID VALUE IN DRIVE 
    NOTE: Do not apply the brake pedal during this test because it may produce false readings.
    NOTE: Refer to the scan tool instruction manual for information on the recorder function.
    • Gear selector in DRIVE position.
    • Access the TCM and monitor the TQ_DSD PID.
    • Record the PID value when driving the vehicle in DRIVE.
    • Is the torque between 0 - 4,000 Nm (0 - 2,950.2 lb ft)? 
    • Yes:  GO to  TU5.
    • No:  GO to  TU11.
  5. TU5: CHECK THE TCM TOTAL TORQUE DESIRED PID VALUE IN LOW 
    NOTE: Do not apply the brake pedal during this test because it may produce false readings.
    NOTE: Refer to the scan tool instruction manual for information on the recorder function.
    • Gear selector in LOW position.
    • Access the TCM and monitor the TQ_DSD PID.
    • Record the PID value when driving the vehicle in LOW.
    • Is the torque between 0 - 4,000 Nm (0 - 2,950.2 lb ft)? 
  6. TU6: CHECK THE DTCFZ PID FOR A DTC DETAIL NUMBER 
    NOTE: The DTCFZ PID is a freeze frame PID.
    • Access the TCM and monitor the DTCFZ PID.
    • Does the DTCFZ PID indicate freeze detail number 41, 42, 61, 62 or 178 present? 
  7. TU7: 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 malfunction 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 TQ_DSD PID.
    • Recreate the symptom using 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? 
  8. TU8: CHECK THE TCM TOTAL TORQUE DESIRED PID VALUE IN REVERSE 
    NOTE: Use the data recorded in the Pinpoint Test Step TU7.
    • Does the TCM_TQ DSD PID display between -4,000 - 0 Nm (-2,950 - 0 lb-ft) when the symptom occurs? 
    • Yes:  GO to  TU9.
    • No:  GO to  TU11.
  9. TU9: CHECK THE TCM TOTAL TORQUE DESIRED PID VALUE IN DRIVE 
    NOTE: Use the data recorded in the Pinpoint Test Step TU7.
    • Does the TCM TQ_DSD PID display between 0 - 4,000 Nm (0 - 2,950 lb-ft) when the symptom occurs? 
    • Yes:  GO to  TU10.
    • No:  GO to  TU11.
  10. TU10: CHECK THE TCM TOTAL TORQUE DESIRED PID VALUE IN LOW 
    NOTE: Use the data recorded in the Pinpoint Test Step TU7.
    • Does the TCM TQ DSD PID display between 0 - 4,000 Nm (0 - 2,950 lb-ft) when the symptom occurs? 
  11. TU11: 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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