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TRANSAXLE OVERHEATS [ET6A-EL (US)]

TRANSAXLE OVERHEATS [ET6A-EL (US)]

SM2566145


id0503n21026n5

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.)
― APP (APP sensor)
― ECT (ECT sensor)
― ENG_RPM (CKP sensor)
• Is there any malfunction? (See PID/DATA MONITOR TABLE [PCM (SKYACTIV-G (US))].)
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)
Yes
Repair or replace any malfunctioning parts according to the inspection result.
No
Go to the next step.
3
INSPECT ATF LEVEL
• Is there any malfunction?
Yes
Adjust the ATF level to the specification.
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.
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
― TR1
― TSS
― VSS
• Is there any malfunction? (See PID/DATA MONITOR TABLE [TCM (ET6A-EL) (US)].)
Yes
Replace the control valve body.
No
Symptom troubleshooting is completed.