Dtc P0985 Shift Solenoid E Control Circuit Low (Shift Solenoid Valve Sr)


DESCRIPTION

MONITOR DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE SR)

CHECK WIRE HARNESS (TRANSMISSION WIRE - ECM)

INSPECT SHIFT SOLENOID VALVE SR

DTC P0985 Shift Solenoid "E" Control Circuit Low (Shift Solenoid Valve SR)

DTC P0986 Shift Solenoid "E" Control Circuit High (Shift Solenoid Valve SR)


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 are 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 (Toyota Fortuner RM000000O8L01GX.html).

DTC No.
DTC Detection Condition
Trouble Area
P0985
ECM detects short in solenoid valve SR circuit 2 times when solenoid valve SR is operated (1 trip detection logic)
  1. Short in shift solenoid valve SR circuit
  2. Shift solenoid valve SR
  3. ECM
P0986
ECM detects open in solenoid valve SR circuit 2 times when solenoid valve SR is not operated (1 trip detection logic)
  1. Open in shift solenoid valve SR circuit
  2. Shift solenoid valve SR
  3. ECM

MONITOR DESCRIPTION

These DTCs indicate an open or short in the shift solenoid valve SR circuit. 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. When the shift solenoid valve SR is ON, if resistance is 8 Ω or less, the ECM determines that there is a short in the shift solenoid valve SR circuit.
When the shift solenoid valve SR is OFF, if resistance is 100 kΩ or more, the ECM determines that there is an open in the shift solenoid valve SR circuit (Toyota Fortuner RM000000O8L01GX.html).

WIRING DIAGRAM


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.A750F Automatic Transmission.Automatic Transmission System. Dtc P0985 Shift Solenoid E Control Circuit Low (Shift Solenoid Valve Sr)


INSPECTION PROCEDURE


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

ECM gear shift command
1st
2nd
3rd
4th
5th
Shift solenoid valve SR
OFF
OFF
OFF
OFF
ON
1.INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE SR)


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.A750F Automatic Transmission.Automatic Transmission System. Dtc P0985 Shift Solenoid E Control Circuit Low (Shift Solenoid Valve Sr)

  1. Disconnect the E1 wire connector.

  1. Measure the resistance of the wire connector.

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


NG
Go to step 3
OK


2.CHECK WIRE HARNESS (TRANSMISSION WIRE - ECM)


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.A750F Automatic Transmission.Automatic Transmission System. Dtc P0985 Shift Solenoid E Control Circuit Low (Shift Solenoid Valve Sr)

  1. Disconnect the E16 ECM connector.

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E16-9 (SR) - 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 SR
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.A750F Automatic Transmission.Automatic Transmission System. Dtc P0985 Shift Solenoid E Control Circuit Low (Shift Solenoid Valve Sr)

  1. Remove the shift solenoid valve SR.

  1. Measure the resistance of the solenoid valve.

    Standard resistance:
    5.0 to 5.6 Ωat 20°C (68°F)

  1. Connect the battery's positive (+) lead to the terminal of the solenoid valve connector, and the negative (-) lead to the solenoid body. Then check that the valve moves and makes an operating noise.

    OK:
    Valve moves and makes operating noise.


NG
REPLACE SHIFT SOLENOID VALVE SR
OK

REPAIR OR REPLACE TRANSMISSION WIRE