AUTOMATIC TRANSMISSION SYSTEM, Diagnostic DTC:P08D2, P08D3

DTC Code DTC Name
P08D2 Shift Solenoid "J" Control Circuit Low
P08D3 Shift Solenoid "J" Control Circuit High

DESCRIPTION

Based on the ON-OFF combinations of the shift solenoid valve SL1, SL2, SL3, SL4, SL5, SC1 and SC2, the TCM performs gear shifts from 1st gear to 8th gear.

If a circuit related to a solenoid valve is open or shorted, the TCM uses the fail-safe function to turn other solenoid valves on or off. If all solenoid valves are malfunctioning, only the mechanical fluid pressure circuit will function and some manual operation will be possible. If an open or short has occurred, the TCM cuts power to the malfunctioning solenoid valve.

DTC No.

DTC Detection Condition


  1. Diagnosis Condition

  2. Malfunction Status

  3. Malfunction Time

  4. Other

 Trouble Area
P08D2

  1. Shift solenoid valve SC2 is operated

  2. Shift solenoid valve SC2 terminal voltage level is low

  3. 0.5 seconds

  4. 1-trip detection logic

  • Shift solenoid valve SC2

  • Transmission wire

  • Harness and connector

  • TCM
P08D3

  1. Shift solenoid valve SC2 is not operated

  2. Shift solenoid valve SC2 terminal voltage level is high

  3. 0.5 seconds

  4. 1-trip detection logic

  • Shift solenoid valve SC2

  • Transmission wire

  • Harness and connector

  • TCM

MONITOR DESCRIPTION

These DTCs indicate an open or short in the shift solenoid valve SC2 circuit. When there is an open or short circuit in any shift solenoid valve circuit, the TCM detects the problem, illuminates the MIL and stores the DTC. When the shift solenoid valve SC2 is ON, if its resistance is 8 Ω or less, the TCM determines there is a short in the shift solenoid valve SC2 circuit.

When the shift solenoid valve SC2 is OFF, if its resistance is 100 kΩ or higher, the TCM determines there is an open in the shift solenoid valve SC2 circuit.

WIRING DIAGRAM

B001ZLNE03
*1 Shift Solenoid Valve SC2
*2 Transmission Wire

CAUTION / NOTICE / HINT

Note

Perform registration and/or initialization when parts related to the automatic transmission are replaced Click here.

Tech Tips

After performing repair, clear the DTCs and perform the following procedure to check that DTCs are not output.


  1. Perform the D Position Shift Test in Road Test Click here.

  2. Check for DTCs again Click here.

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (SHIFT SOLENOID VALVE SC2 - TCM)


    1. B001X7FE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to TCM)

      Disconnect the TCM connector.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      A80-28 (SC2) - Body ground 20°C (68°F) 11 to 15 Ω

    OK

    REPLACE TCM Click here

    NG

  2. CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - TCM)


    1. Disconnect the C171 transmission wire connector.

    2. Disconnect the A80 TCM connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      C171-8 (SC2) - A80-28 (SC2) Always Below 1 Ω
      C171-8 (SC2) or A80-28 (SC2) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT SHIFT SOLENOID VALVE SC2


    1. B001Y0TE01
      Text in Illustration
      *1 Shift Solenoid Valve SC2

      Remove the shift solenoid valve SC2 Click here.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      Shift solenoid valve SC2 connector - Shift solenoid valve SC2 body 20°C (68°F) 11 to 15 Ω

    3. Apply 12 V battery voltage to the shift solenoid valve and check that the valve moves and makes an operating noise.

      OK
      Measurement Condition Specified Condition

      • Battery positive (+) → Shift solenoid valve SC2 connector

      • Battery negative (-) → Shift solenoid valve SC2 body

      		 Valve moves and makes an operating noise

    OK

    REPAIR OR REPLACE TRANSMISSION WIRE Click here

    NG

    REPLACE SHIFT SOLENOID VALVE SC2 Click here