Dtc P0976 Shift Solenoid B Control Circuit Low (Shift Solenoid Valve S2). Corolla ZZE150

Трансмиссия. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150
Автоматическая Трансмиссия U341E. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150

DESCRIPTION

MONITOR DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT TRANSMISSION WIRE (S2)

CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM)

INSPECT SHIFT SOLENOID VALVE S2

DTC P0976 Shift Solenoid "B" Control Circuit Low (Shift Solenoid Valve S2)

DTC P0977 Shift Solenoid "B" Control Circuit High (Shift Solenoid Valve S2)


DESCRIPTION

Shifting from 1st to 4th is performed in combination with "ON" and "OFF" of the shift solenoid valve S1 and S2 controlled by ECM. If an open or short circuit occurs in either of the solenoid valves, the ECM controls the remaining normal solenoid valve to allow the vehicle to be operated smoothly (Fail safe function).

DTC No.
DTC Detection Condition
Trouble Area
P0976
ECM detects short in solenoid valve S2 circuit 2 times when solenoid valve S2 is operated (1-trip detection logic)
  1. Short in shift solenoid valve S2 circuit
  2. Shift solenoid valve S2
  3. ECM
P0977
ECM detects open in solenoid valve S2 circuit 2 times when solenoid valve S2 is not operated (1-trip detection logic)
  1. Open in shift solenoid valve S2 circuit
  2. Shift solenoid valve S2
  3. ECM

MONITOR DESCRIPTION

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 and illuminates the MIL and stores the DTC. And the ECM performs the fail-safe function and turns the other shift solenoid valves in good condition "ON/OFF" (In case of an open or short circuit, the ECM stops sending current to the circuit.) (See page Нажмите здесь).

WIRING DIAGRAM


COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Автоматическая Трансмиссия U341E.Система Автоматической Трансмиссии. Dtc P0976 Shift Solenoid B Control Circuit Low (Shift Solenoid Valve S2)


INSPECTION PROCEDURE

1.INSPECT TRANSMISSION WIRE (S2)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Автоматическая Трансмиссия U341E.Система Автоматической Трансмиссии. Dtc P0976 Shift Solenoid B Control Circuit Low (Shift Solenoid Valve S2)

  1. Disconnect the transmission wire connector from the transaxle.

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    10 - Body ground
    		20°C (68°F)
    		11 to 15 Ω


NG
Перейдите к шагу 3
OK


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


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Автоматическая Трансмиссия U341E.Система Автоматической Трансмиссии. Dtc P0976 Shift Solenoid B Control Circuit Low (Shift Solenoid Valve S2)

  1. Connect the transmission wire connector to the transaxle.

  1. Disconnect the connector from the ECM.

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    B31-78 (S2) - Body ground
    		20°C (68°F)
    		11 to 15 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE ECM (for 2ZR-FE) (Нажмите здесь)

3.INSPECT SHIFT SOLENOID VALVE S2


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Автоматическая Трансмиссия U341E.Система Автоматической Трансмиссии. Dtc P0976 Shift Solenoid B Control Circuit Low (Shift Solenoid Valve S2)

  1. Remove the shift solenoid valve S2.

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    Solenoid Connector (S2) - Solenoid Body (S2)
    		20°C (68°F)
    		11 to 15 Ω

  1. Connect the positive (+) lead to the terminal of solenoid connector, and the negative (-) lead to the solenoid body.

    Standard:
    The solenoid makes an operating noise.


NG
REPLACE SHIFT SOLENOID VALVE S2 (Нажмите здесь)
OK

REPAIR OR REPLACE TRANSMISSION WIRE (Нажмите здесь)