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

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

## for Preparation Click here

## DESCRIPTION

Shifting from 1st to 5th is performed in combination with the ON and OFF operation of the shift solenoid valves SL1, SL2, S1, S2 and SR, which is controlled by the ECM. If an open or short circuit occurs in the shift solenoid valves, the ECM controls the remaining normal shift solenoid valve to allow the vehicle to be operated safely (Click here).

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

These DTCs indicate an open or short in the shift solenoid valve S2 circuit. 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. When the shift solenoid valve S2 is ON, if resistance is 8 Ω or less, the ECM determines that there is a short in the shift solenoid valve S2 circuit.
When the shift solenoid valve S2 is OFF, if resistance is 100 kΩ or more, the ECM determines that there is an open in the shift solenoid valve S2 circuit (Click here).

## WIRING DIAGRAM

## INSPECTION PROCEDURE

HINT:

  The shift solenoid valve S2 turns ON/OFF normally when the shift lever is on D:

ECM gear shift command | 1st | 2nd | 3rd | 4th | 5th
Shift solenoid valve S2 | OFF | ON | ON | OFF | OFF

1.INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE S2)

1. Disconnect the E1 wire connector.

1. Measure the resistance of the wire connector.

   Standard resistance:

     Tester Connection | Condition | Specified Condition
     15 - Body ground | 20°C (68°F) | 11 to 15 Ω

| NG |

Go to step 3

OK |

2.CHECK WIRE HARNESS (TRANSMISSION WIRE - ECM)

1. Disconnect the E16 ECM connector.

1. Measure the resistance of the wire harness side connector.

   Standard resistance:

     Tester Connection | Condition | Specified Condition
     E16-10 (S2) - Body ground | 20°C (68°F) | 11 to 15 Ω

| NG |

REPAIR OR REPLACE HARNESS AND CONNECTOR

OK |

REPLACE ECM

3.INSPECT SHIFT SOLENOID VALVE S2

1. Remove the shift solenoid valve S2.

1. Measure the resistance between the solenoid valve terminal and solenoid valve body.

   Standard resistance:
     11 to 15 Ω at 20°C (68°F)

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

   OK:
     Solenoid makes an operating noise.

| NG |

REPLACE SHIFT SOLENOID VALVE S2

OK |

REPAIR OR REPLACE TRANSMISSION WIRE