TROUBLESHOOTING ITEM

Transaxle overheats

DESCRIPTION

• Burnt smell emitted from the transaxle.

• Smoke is emitted from the transaxle.

POSSIBLE CAUSE

• Signal malfunction

• APP sensor malfunction

• Brake switch malfunction

• CKP sensor malfunction

• ECT sensor No.1 malfunction

• ATF malfunction

• Oil cooler malfunction

• Control valve body malfunction

Item (definition)

Unit/Condition

Definition

Condition/Specification (Reference)

APP

%

Accelerator pedal position

• Accelerator pedal released: Approx. 0%

• Accelerator pedal depressed: Approx. 100%

BOO

Off/On

Brake switch (No.1 signal)

• Brake pedal released: Off

• Brake pedal depressed: On

ECT

°C, °F

Engine coolant temperature (No.1)

• Displays ECT

V

• ECT is 20 °C {68 °F}: Approx. 3.10 V

• ECT is 40 °C {104 °F}: Approx. 2.16 V

• ECT is 60 °C {140 °F}: Approx. 1.40 V

• ECT is 80 °C {176 °F}: Approx. 0.87 V

• ECT is 100 °C {212 °F}: Approx. 0.54 V

RPM

RPM

Engine speed

• Displays engine speed

Item

Unit/Condition

Test condition

Specification (Reference)

ECU_A

°C {°F}

Displays the ECU internal temperature A.

ECU_B

°C {°F}

Displays the ECU internal temperature B.

ECU_C

°C {°F}

Displays the ECU internal temperature C.

GEAR_SEL

1/2/3/4/5/6

Selector lever in 1GR at D position

1

Selector lever in 2GR at D position

2

Selector lever in 3GR at D position

3

Selector lever in 4GR at D position

4

Selector lever in 5GR at D position

5

Selector lever in 6GR at D position

6

LINEDES

kPa {kgf/cm², psi}

Idle at P position after warm-up

Approx. 500 kPa {5.10 kgf/cm², 72.5 psi}

OP_SW1

Off/On

Selector lever at P position

Off

Selector lever at R position

Off

Selector lever at N position

Off

Selector lever in 1GR at D position

On

Selector lever in 2GR at D position

On

Selector lever in 3GR at D position

On

Selector lever in 4GR at D position

On

Selector lever in 5GR at D position

Off

Selector lever in 6GR at D position

Off

OP_SW2

Off/On

Selector lever at P position

Off

Selector lever at R position

Off

Selector lever at N position

Off

Selector lever in 1GR at D position

Off

Selector lever in 2GR at D position

On

Selector lever in 3GR at D position

Off

Selector lever in 4GR at D position

Off

Selector lever in 5GR at D position

Off

Selector lever in 6GR at D position

On

OP_SW3

Off/On

Selector lever at P position

Off

Selector lever at R position

On

Selector lever at N position

Off

Selector lever in 1GR at D position

Off

Selector lever in 2GR at D position

Off

Selector lever in 3GR at D position

On

Selector lever in 4GR at D position

Off

Selector lever in 5GR at D position

On

Selector lever in 6GR at D position

Off

OP_SW4

Off/On

Selector lever at P position

Off

Selector lever at R position

Off

Selector lever at N position

Off

Selector lever in 1GR at D position

Off

Selector lever in 2GR at D position

Off

Selector lever in 3GR at D position

Off

Selector lever in 4GR at D position

On

Selector lever in 5GR at D position

On

Selector lever in 6GR at D position

On

OSS

RPM

Vehicle stopped

0 RPM

Vehicle speed 30 km/h {19 mph} in 4GR at D position

Approx. 1000 RPM

SS1

A

Vehicle stopped at P position

Approx. 0 A

Vehicle stopped at R position

Approx. 0 A

Vehicle stopped at N position

Approx. 0 A

Driving in D position 1GR

Approx. 1 A

Driving in D position 2GR

Approx. 1 A

Driving in D position 3GR

Approx. 1 A

Driving in D position 4GR

Approx. 1 A

Driving in D position 5GR

Approx. 0 A

Driving in D position 6GR

Approx. 0 A

SS2

A

Vehicle stopped at P position

Approx. 0 A

Vehicle stopped at R position

Approx. 0 A

Vehicle stopped at N position

Approx. 0 A

Driving in D position 1GR

Approx. 0 A

Driving in D position 2GR

Approx. 1 A

Driving in D position 3GR

Approx. 0 A

Driving in D position 4GR

Approx. 0 A

Driving in D position 5GR

Approx. 0 A

Driving in D position 6GR

Approx. 1 A

SS3

A

Vehicle stopped at P position

Approx. 1 A

Vehicle stopped at R position

Approx. 0 A

Vehicle stopped at N position

Approx. 1 A

Driving in D position 1GR

Approx. 1 A

Driving in D position 2GR

Approx. 1 A

Driving in D position 3GR

Approx. 0 A

Driving in D position 4GR

Approx. 1 A

Driving in D position 5GR

Approx. 0 A

Driving in D position 6GR

Approx. 1 A

SS4

A

Vehicle stopped at P position

Approx. 0 A

Vehicle stopped at R position

Approx. 0 A

Vehicle stopped at N position

Approx. 0 A

Driving in D position 1GR

Approx. 0 A

Driving in D position 2GR

Approx. 1 A

Driving in D position 3GR

Approx. 1 A

Driving in D position 4GR

Approx. 0 A

Driving in D position 5GR

Approx. 0 A

Driving in D position 6GR

Approx. 0 A

SSLU

A

Vehicle stopped at P position

Approx. 0 A

Vehicle stopped at R position

Approx. 0 A

Vehicle stopped at N position

Approx. 0 A

Under the following conditions:

• Driving in D position 1GR

• Accelerator pedal opening angle is approx. 10 %

Approx. 430 mA

Under the following conditions:

• Driving in D position 2GR

• Accelerator pedal opening angle is approx. 10 %

Approx. 430 mA

Under the following conditions:

• Driving in D position 3GR

• Accelerator pedal opening angle is approx. 10 %

Approx. 430 mA

Under the following conditions:

• Driving in D position 4GR

• Accelerator pedal opening angle is approx. 10 %

Approx. 430 mA

Under the following conditions:

• Driving in D position 5GR

• Accelerator pedal opening angle is approx. 10 %

Approx. 430 mA

Under the following conditions:

• Driving in D position 6GR

• Accelerator pedal opening angle is approx. 10 %

Approx. 430 mA

SSLU_PRES

kPa {kgf/cm², psi}

Vehicle stopped at P position

0 kPa {0 kgf/cm², 0 psi}

Vehicle stopped at R position

0 kPa {0 kgf/cm², 0 psi}

Vehicle stopped at N position

0 kPa {0 kgf/cm², 0 psi}

Under the following conditions:

• Driving in D position 1GR

• Accelerator pedal opening angle is approx. 10 %

Approx. 360 kPa {3.67 kgf/cm², 52.2 psi}

Under the following conditions:

• Driving in D position 2GR

• Accelerator pedal opening angle is approx. 10 %

Approx. 360 kPa {3.67 kgf/cm², 52.2 psi}

Under the following conditions:

• Driving in D position 3GR

• Accelerator pedal opening angle is approx. 10 %

Approx. 360 kPa {3.67 kgf/cm², 52.2 psi}

Under the following conditions:

• Driving in D position 4GR

• Accelerator pedal opening angle is approx. 10 %

Approx. 360 kPa {3.67 kgf/cm², 52.2 psi}

Under the following conditions:

• Driving in D position 5GR

• Accelerator pedal opening angle is approx. 10 %

Approx. 360 kPa {3.67 kgf/cm², 52.2 psi}

Under the following conditions:

• Driving in D position 6GR

• Accelerator pedal opening angle is approx. 10 %

Approx. 360 kPa {3.67 kgf/cm², 52.2 psi}

SSP

A

Vehicle stopped at P position

Approx. 980 mA

Vehicle stopped at R position

Approx. 930 mA

Vehicle stopped at N position

Approx. 980 mA

Under the following conditions:

• Driving in D position 1GR

• Accelerator pedal opening angle is approx. 10 %

Approx. 400—800 mA

Under the following conditions:

• Driving in D position 2GR

• Accelerator pedal opening angle is approx. 10 %

Approx. 400—800 mA

Under the following conditions:

• Driving in D position 3GR

• Accelerator pedal opening angle is approx. 10 %

Approx. 400—800 mA

Under the following conditions:

• Driving in D position 4GR

• Accelerator pedal opening angle is approx. 10 %

Approx. 400—800 mA

Under the following conditions:

• Driving in D position 5GR

• Accelerator pedal opening angle is approx. 10 %

Approx. 400—800 mA

Under the following conditions:

• Driving in D position 6GR

• Accelerator pedal opening angle is approx. 10 %

Approx. 400—800 mA

SSP_PRES

kPa {kgf/cm², psi}

Vehicle stopped at P position

Approx. 45 kPa {0.46 kgf/cm², 6.5 psi}

Vehicle stopped at R position

Approx. 80 kPa {0.82 kgf/cm², 12 psi}

Vehicle stopped at N position

Approx. 45 kPa {0.46 kgf/cm², 6.5 psi}

Under the following conditions:

• Driving in D position 1GR

• Accelerator pedal opening angle is approx. 10 %

130—460 kPa {1.33—4.69 kgf/cm², 18.9—66.7 psi}

Under the following conditions:

• Driving in D position 2GR

• Accelerator pedal opening angle is approx. 10 %

130—460 kPa {1.33—4.69 kgf/cm², 18.9—66.7 psi}

Under the following conditions:

• Driving in D position 3GR

• Accelerator pedal opening angle is approx. 10 %

130—460 kPa {1.33—4.69 kgf/cm², 18.9—66.7 psi}

Under the following conditions:

• Driving in D position 4GR

• Accelerator pedal opening angle is approx. 10 %

130—460 kPa {1.33—4.69 kgf/cm², 18.9—66.7 psi}

Under the following conditions:

• Driving in D position 5GR

• Accelerator pedal opening angle is approx. 10 %

130—460 kPa {1.33—4.69 kgf/cm², 18.9—66.7 psi}

Under the following conditions:

• Driving in D position 6GR

• Accelerator pedal opening angle is approx. 10 %

130—460 kPa {1.33—4.69 kgf/cm², 18.9—66.7 psi}

TR

P/SHIFT_DOWN/SHIFT_UP/M/D/N/R

Selector lever at P position

P

Selector lever at M position (−) side position

SHIFT_DOWN

Selector lever at M position (+) side position

SHIFT_UP

Selector lever at M position

M

Selector lever at D position

D

Selector lever at N position

N

Selector lever at R position

R

TSS

RPM

Vehicle stopped at D position

0 RPM

Engine speed 1,000 rpm at P position

900—1,100 RPM

VSS

KPH {MPH}

Displays the vehicle speed.

STEP

INSPECTION

ACTION

1

• Inspect the value at the following PCM PIDs using the M-MDS.

  (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-G 2.5].)

• APP (APP sensor)

• BOO (Brake switch)

• ECT (ECT sensor No.1)

• RPM (CKP sensor)

• Is there any malfunction?

Yes

Repair or replace any malfunctioning parts according to the inspection result.

No

Go to the next step.

2

• Inspect the ATF level.

  (See AUTOMATIC TRANSAXLE FLUID (ATF) INSPECTION [FW6A-EL].)

• Is there any malfunction?

Yes

Adjust the ATF level to the specification.

(See AUTOMATIC TRANSAXLE FLUID (ATF) REPLACEMENT [FW6A-EL].)

No

Go to the next step.

3

• 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 [FW6A-EL].)

No

Go to the next step.

4

• Inspect the value at the following TCM PIDs using the M-MDS.

  (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION [FW6A-EL].)

• ECU_A

• ECU_B

• ECU_C

• GEAR_SEL

• LINEDES

• OP_SW1

• OP_SW2

• OP_SW3

• OP_SW4

• OSS

• SS1

• SS2

• SS3

• SS4

• SSLU

• SSLU_PRES

• SSP

• SSP_PRES

• TR

• TSS

• VSS

• Is there any malfunction?

Yes

Replace the control valve body, then go to the next step.

(See CONTROL VALVE BODY REMOVAL/INSTALLATION [FW6A-EL].)

No

Symptom troubleshooting is completed.