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TRANSAXLE OVERHEATS [ET6A-EL, ET6AX-EL (E)]

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Troubleshooting item	Transaxle overheats
Description	•  Burnt smell emitted from the transaxle. •  Smoke is emitted from the transaxle.
Possible cause	1.  Signal malfunction ―  APP sensor malfunction ―  Brake switch malfunction ―  CKP sensor malfunction ―  ECT sensor malfunction 2.  ATF malfunction 3.  Oil cooler malfunction 4.  Control valve body malfunction
System wiring diagram	•  Not applicable
Connector diagram	•  Not applicable

Diagnostic Procedure

Step	Inspection	Results	Action
1	INSPECT SIGNAL PARTS FOR MALFUNCTION •  Inspect the value at the following PCM PIDs using the M-MDS. (See PID/DATA MONITOR INSPECTION.) ―  APP1 (APP sensor No.1) ―  APP2 (APP sensor No.2) ―  ECT (ECT sensor) ―  ENG_RPM (CKP sensor) •  Is there any malfunction? (See PID/DATA MONITOR TABLE [PCM (SKYACTIV-G (E))].) (See PID/DATA MONITOR TABLE [PCM (SKYACTIV-X)].) (See PID/DATA MONITOR TABLE [PCM (SKYACTIV-D)].)	Yes	Repair or replace any malfunctioning parts according to the inspection result.
		No	Go to the next step.
2	INSPECT SIGNAL PARTS FOR MALFUNCTION •  Inspect the value at the following ESU PIDs using the M-MDS. (See PID/DATA MONITOR INSPECTION.) ―  BRK_SW (Brake switch) •  Is there any malfunction? (See PID/DATA MONITOR TABLE [ELECTRICAL SUPPLY UNIT (ESU) (E)].)	Yes	Repair or replace any malfunctioning parts according to the inspection result.
		No	Go to the next step.
3	INSPECT ATF LEVEL •  Inspect the ATF level. (See AUTOMATIC TRANSAXLE FLUID (ATF) INSPECTION [ET6A-EL, ET6AX-EL (E)].) •  Is there any malfunction?	Yes	Adjust the ATF level to the specification. (See AUTOMATIC TRANSAXLE FLUID (ATF) ADJUSTMENT [ET6A-EL, ET6AX-EL (E)].)
		No	Go to the next step.
4	VISUALLY INSPECT OIL COOLER •  Visually inspect the oil cooler. •  Is there any malfunction?	Yes	Repair or replace any malfunctioning parts according to the inspection result. (See OIL COOLER REMOVAL/INSTALLATION [ET6A-EL, ET6AX-EL (SKYACTIV-G 2.0, SKYACTIV-G 2.5)].) (See OIL COOLER REMOVAL/INSTALLATION [ET6A-EL, ET6AX-EL (SKYACTIV-X 2.0)].) (See OIL COOLER REMOVAL/INSTALLATION [ET6A-EL, ET6AX-EL (SKYACTIV-D 1.8)].)
		No	Go to the next step.
5	VERIFY IF MALFUNCTION CAUSE IS CONTROL VALVE BODY •  Inspect the value at the following TCM PIDs using the M-MDS. (See PID/DATA MONITOR INSPECTION.) ―  ECU_TEMP_A ―  ECU_TEMP_B ―  ECU_TEMP_C ―  GEAR_SEL ―  LINE_PRES_COMD ―  CLTCH_OIL_PRES_SW1 ―  CLTCH_OIL_PRES_SW2 ―  CLTCH_OIL_PRES_SW3 ―  CLTCH_OIL_PRES_SW4 ―  OSS ―  SHIFT_SOL_B_CUR_ACT ―  SHIFT_SOL_C_CUR_ACT ―  SHIFT_SOL_D_CUR_ACT ―  SHIFT_SOL_E_CUR_ACT ―  TRQ_CON_CLTCH_CUR_ACT ―  TRQ_CON_CLTCH_PRES ―  SHIFT_SOL_A_CUR ―  SHIFT_SOL_A_PRES ―  SHIFT_R ―  SHIFT_N ―  SHIFT_D ―  SHIFT_A_M ―  SHIFT_P ―  TSS ―  VSS •  Is there any malfunction? (See PID/DATA MONITOR TABLE [TCM (ET6A-EL, ET6AX-EL) (E)].)	Yes	Replace the control valve body. (See CONTROL VALVE BODY REMOVAL/INSTALLATION [ET6A-EL, ET6AX-EL (E)].)
		No	Symptom troubleshooting is completed.