Dtc P0982 Shift Solenoid D Control Circuit Low (Shift Solenoid Valve S4)

Drivetrain. Corolla. Zre142 Aze141
U250E Automatic Transmission Transaxle. Corolla. Zre142 Aze141

DESCRIPTION

MONITOR DESCRIPTION

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

COMPONENT OPERATING RANGE

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT TRANSMISSION WIRE (S4)

CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM)

INSPECT SHIFT SOLENOID VALVE S4

DTC P0982 Shift Solenoid "D" Control Circuit Low (Shift Solenoid Valve S4)

DTC P0983 Shift Solenoid "D" Control Circuit High (Shift Solenoid Valve S4)


DESCRIPTION

Shifting from 1st to 5th is performed in combination with "ON" and "OFF" operation of the shift solenoid valves SL1, SL2, SL3, S4 and SR which are controlled by the ECM. If an open or short circuit occurs in either of the shift solenoid valves, the ECM controls the remaining normal shift solenoid valves to allow the vehicle to be operated smoothly (Fail safe function).

DTC No.
DTC Detection Condition
Trouble Area
P0982
ECM detects short in solenoid valve S4 circuit 2 times when solenoid valve S4 is operated (1-trip detection logic)
  1. Short in shift solenoid valve S4 circuit
  2. Shift solenoid valve S4
  3. ECM
P0983
ECM detects open in solenoid valve S4 circuit 2 times when solenoid valve S4 is not operated (1-trip detection logic)
  1. Open in shift solenoid valve S4 circuit
  2. Shift solenoid valve S4
  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 normal shift solenoid valves "ON/OFF" (In case of an open or short circuit, the ECM stops sending current to the circuit.)
(COROLLA_ZRE142 RM000000O8L0N2X.html).

MONITOR STRATEGY


Related DTCs
P0982: Shift solenoid valve S4/Range check (Low resistance)
P0983: Shift solenoid valve S4/Range check (High resistance)
Required sensors/Components
Shift solenoid valve S4
Frequency of operation
Continuous
Duration
0.064 sec. or more
MIL operation
Immediate
Sequence of operation
None

TYPICAL ENABLING CONDITIONS


P0982: Range check (Low resistance):
The monitor will run whenever this DTC is not present.
None
Shift solenoid valve S4
ON
Time after solenoid OFF to ON
0.008 seconds or more
Battery voltage
8 V or more
Ignition switch
ON
Starter
OFF

P0983: Range check (High resistance):
The monitor will run whenever this DTC is not present.
None
Shift solenoid valve S4
OFF
Time after solenoid ON to OFF
0.008 seconds or more
Battery voltage
8 V or more
Ignition switch
ON
Starter
OFF

TYPICAL MALFUNCTION THRESHOLDS


P0982: Range check (Low resistance):
Solenoid terminal voltage level
Low

P0983: Range check (High resistance):
Solenoid terminal voltage level
High

COMPONENT OPERATING RANGE


Shift solenoid valve S4
Resistance: 11 to 15 Ω at 20°C (68°F)

WIRING DIAGRAM


Corolla. Zre142 Aze141.U250E Automatic Transmission Transaxle.Automatic Transaxle System. Dtc P0982 Shift Solenoid D Control Circuit Low (Shift Solenoid Valve S4)


INSPECTION PROCEDURE

NOTICE:
Perform the universal trip to clear permanent DTCs (COROLLA_ZRE142 RM000000W770S6X.html).
1.INSPECT TRANSMISSION WIRE (S4)


    Corolla. Zre142 Aze141.U250E Automatic Transmission Transaxle.Automatic Transaxle System. Dtc P0982 Shift Solenoid D Control Circuit Low (Shift Solenoid Valve S4)

  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
    3 - Body ground
    		20°C (68°F)
    		11 to 15 Ω


NG
Go to step 3
OK


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


    Corolla. Zre142 Aze141.U250E Automatic Transmission Transaxle.Automatic Transaxle System. Dtc P0982 Shift Solenoid D Control Circuit Low (Shift Solenoid Valve S4)

  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 (S4) - Body ground
    		20°C (68°F)
    		11 to 15 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE ECM (COROLLA_ZRE142 RM000002WT506MX.html)

3.INSPECT SHIFT SOLENOID VALVE S4


    Corolla. Zre142 Aze141.U250E Automatic Transmission Transaxle.Automatic Transaxle System. Dtc P0982 Shift Solenoid D Control Circuit Low (Shift Solenoid Valve S4)

  1. Remove the shift solenoid valve S4.

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    Solenoid Connector (S4) - Solenoid Body (S4)
    		20°C (68°F)
    		11 to 15 Ω

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

    OK:
    The solenoid makes an operating sound.


NG
REPLACE SHIFT SOLENOID VALVE S4 (COROLLA_ZRE142 RM00000109S01BX.html)
OK

REPAIR OR REPLACE TRANSMISSION WIRE (COROLLA_ZRE142 RM000000YWZ01QX.html)