Test Procedure

TM1: DIAGNOSTIC TROUBLE CODES (DTCS) P0A2F AND P0A3C: CHECK FOR SELF-TEST DTCS
- Are DTCs P0A2F or P0A3C present during PCM or transaxle control module (TCM) self-test?
- Yes: For DTC P0A2F, GO to TM6.
  For DTC P0A3C, GO to TM2.
- No: Unable to duplicate or identify the concern at this time.
  RETURN to SYMPTOM CHARTS for further direction.
TM2: DTC P0A3C: CHECK FOR THE PRESENCE OF PCM DTCS P0A00, P0A02, P0A03, P0A7C
- Are any of the above listed DTCs present?
- Yes: DISREGARD the current diagnostic trouble code (DTC) at this time. DIAGNOSE the next DTC. GO to DIAGNOSTIC TROUBLE CODE (DTC) CHARTS AND DESCRIPTIONS .
- No: GO to TM3.
TM3: VISUAL INSPECTION OF MOTOR ELECTRONICS COOLING SYSTEM
NOTE: Repair any motor electronics coolant pump (MECP) DTCs before proceeding.
- Visually inspect the motor electronics cooling system for leaks, pinched hoses, restricted radiator air flow, correct coolant level, coolant flow at the motor electronics coolant reservoir, fan operation, and loose electrical connections.
- Is the motor electronics cooling system OK?
- Yes: GO to TM4.
- No: REPAIR as necessary.
  CLEAR the DTCs. REPEAT the self-test.
TM4: CHECK THE TCM MOTOR ELECTRONICS COOLANT TEMPERATURE (MECT) PID
NOTE: Access the MECT PID from the freeze frame PID menu.

Refer to the scan tool instruction manual for freeze frame PID menu.
- Access the TCM and monitor the MECT PID.
- Is the temperature less than 60°C (140°F)?
- Yes: INSTALL a new transaxle assembly. REFER to the AUTOMATIC TRANSAXLE - HYBRID .
- No: GO to TM5.
TM5: CHECK THE MCLTEMP WHILE RECREATING THE SYMPTOM
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.
- Recreate the symptom using freeze frame and customer information.
- Access the TCM and monitor the MCLTEMP PID.
- Is the temperature less than 220°C (428°F) when the symptom occurs?
- Yes: Unable to duplicate or identify the concern at this time.
  RETURN to SYMPTOM CHARTS for further direction.
- No: INSTALL a new transaxle assembly. REFER to the AUTOMATIC TRANSAXLE - HYBRID .
TM6: DTC P0A2F: CHECK THE AUTOMATIC TRANSAXLE FLUID LEVEL
NOTE: A low automatic transaxle fluid level may cause an traction motor over temperature condition.
- Verify the automatic transaxle fluid level is correct. Refer to the AUTOMATIC TRANSAXLE - HYBRID .
- Is the transaxle fluid level correct?
- Yes: GO to TM7.
- No: ADD the necessary fluid to obtain the correct fluid level.
  REFER to the AUTOMATIC TRANSAXLE - HYBRID .
  
  GO to TM8.
TM7: VISUAL INSPECTION OF MOTOR ELECTRONICS COOLING SYSTEM
NOTE: Repair any motor electronics coolant pump (MECP) DTCs before proceeding.
- Visually inspect the motor electronics cooling system for leaks, pinched hoses, restricted radiator air flow, correct coolant level, coolant flow at the motor electronics coolant reservoir, fan operation, and loose electrical connections.
- Is the motor electronics cooling system OK?
- Yes: GO to TM8.
- No: REFER to the AUTOMATIC TRANSAXLE - HYBRID to diagnose motor electronics cooling concerns.
TM8: CHECK THE MCLTEMP WHILE RECREATING THE SYMPTOM
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.
- Recreate the symptom using freeze frame and customer information.
- Access the TCM and monitor the MCLTEMP PID.
- Record the MCLTEMP PID reading when the symptom occurs.
- Could the symptom be recreated?
- Yes: GO to TM9.
- No: Unable to duplicate or identify the concern at this time.
  RETURN to SYMPTOM CHARTS for further direction.
TM9: CHECK THE MCLTEMP WHILE RECREATING THE SYMPTOM
- Is the temperature less than 220°C (428°F) when the symptom occurs?
- Yes: RETURN to SYMPTOM CHARTS for further direction.
- No: INSTALL a new transaxle assembly.