AUTOMATIC TRANSAXLE SYSTEM (for 1AZ-FE), Diagnostic DTC:P0982, P0983

DTC Code DTC Name
P0982 Shift Solenoid "D" Control Circuit Low (Shift Solenoid Valve S4)
P0983 Shift Solenoid "D" Control Circuit High (Shift Solenoid Valve S4)

DESCRIPTION

Shifting from 1st to 4th is performed in combination with the ON and OFF operation of shift solenoid valves SL1, SL2 and S4, which are controlled by the ECM. If an open or short circuit occurs in any of the shift solenoid valves, the ECM controls the remaining normal shift solenoid valves to allow the vehicle to be operated safely Click here.

DTC Code DTC Detection Condition Trouble Area
P0982 The ECM detects a short in the solenoid valve S4 circuit 2 times when solenoid valve S4 is operated (1 trip detection logic).

  • Short in shift solenoid valve S4 circuit

  • Shift solenoid valve S4

  • ECM
P0983 The ECM detects an open in the solenoid valve S4 circuit 2 times when solenoid valve S4 is not operated (1 trip detection logic).

  • Open in shift solenoid valve S4 circuit

  • Shift solenoid valve S4

  • ECM

MONITOR DESCRIPTION

This DTC indicates an open or short in the shift solenoid valve S4 circuit. The ECM commands gear shifts by turning the shift solenoid valves ON/OFF. When there is an open or short circuit in any shift solenoid valve circuit, the ECM detects the problem, illuminates the MIL and stores the DTC. Also, the ECM performs the fail-safe function and turns the other normal shift solenoid valves ON/OFF. In case of an open or short circuit, the ECM stops sending current to the circuit Click here.

WIRING DIAGRAM

A005W2PE59

INSPECTION PROCEDURE

PROCEDURE


  1. INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE S4)


    1. A005WDGE05
      Text in Illustration
      *1

      Component without harness connected

      (Transmission Wire)

      Disconnect the B19 transmission wire connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      8 (S4) - Body ground 20°C (68°F) 11 to 15 Ω

    NG

    INSPECT SHIFT SOLENOID VALVE S4 Click here

    OK

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


    1. A005S8YE21
      Text in Illustration
      *1

      Front view of wire harness connector

      (to ECM)

      Disconnect the B39 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      B39-78 (S4) - Body ground 20°C (68°F) 11 to 15 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE ECM Click here

  3. INSPECT SHIFT SOLENOID VALVE S4


    1. A005RNRE01
      Text in Illustration
      *1

      Component without harness connected

      (Shift Solenoid Valve S4)

      Remove shift solenoid valve S4.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Shift solenoid valve S4 connector terminal - Shift solenoid valve S4 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 S4 connector

      • Battery negative (-) → Shift solenoid valve S4 body

      		 Valve moves and makes an operating noise

    NG

    REPLACE SHIFT SOLENOID VALVE S4 Click here

    OK

    REPAIR OR REPLACE TRANSMISSION WIRE Click here