Toyota Sequoia (2005). Manual - part 214

–

DIAGNOSTICS

AUTOMATIC TRANSMISSION

DI–651

845

DTC

P0985

Shift Solenoid ”E” Control Circuit Low
(Shift Solenoid Valve SR)

DTC

P0986

Shift Solenoid ”E” Control Circuit High
(Shift Solenoid Valve SR)

CIRCUIT DESCRIPTION

Shifting from 1st to 5th is performed in combination with ”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 either of the
shift solenoid valves, the ECM controls the remaining normal shift solenoid valves to allow the vehicle to be
operated smoothly (See page 

DI–567

).

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)

Short in shift solenoid valve SR circuit

Shift solenoid valve SR

ECM

P0986

ECM detects open in solenoid valve SR circuit 2 times when

solenoid valve SR is not operated (1–trip detection logic)

Open in shift solenoid valve SR circuit

Shift solenoid valve SR

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 and 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 there is

a short in the shift solenoid valve SR circuit.
When the shift solenoid valve SR is off, if resistance is 100 k

Ω

 or more, the ECM determines there is an open

in the shift solenoid valve SR circuit (See page 

DI–567

).

MONITOR STRATEGY

R l t d DTC

P0985

Shift solenoid valve SR/Range check (Low resistance)

Related DTCs

P0986

Shift solenoid valve SR/Range check (High resistance)

Required sensors/Components

Shift solenoid valve SR

Frequency of operation

Continuous

Duration

0.064 sec.

MIL operation

Immediate

Sequence of operation

None

DIDJK–01

D14170

E1 
Electronically Controlled 
Transmission Solenoid

ECM

9

E7

SR

7

SB

G–R

SR

+B

CPU

DI–652

–

DIAGNOSTICS

AUTOMATIC TRANSMISSION

846

TYPICAL ENABLING CONDITIONS

It

Specification

Item

Minimum

Maximum

The monitor will run whenever these

DTCs are not present.

See page 

DI–545

Range check (Low resistance)

Shift solenoid valve SR

ON

Battery voltage

8 V or more

–

Ignition switch

ON

Starter

OFF

Range check (High resistance)

Shift solenoid valve SR

OFF

Battery voltage

8 V or more

–

Ignition switch

ON

Starter

OFF

TYPICAL MALFUNCTION THRESHOLDS

Detection criteria

Threshold

Range check (Low resistance)

Shift solenoid valve SR resistance

8 

Ω

 or less

Range check (High resistance)

Shift solenoid valve SR resistance

100 k

Ω

 or more

COMPONENT OPERATING RANGE

Parameter

Standard value

Shift solenoid valve SR

Resistance: 11 to 15 at 20

°

C (68

°

F)

WIRING DIAGRAM

ECM command gearshift

Shift solenoid valve SR

1st

2nd

3rd

4th

5th

OFF OFF

ON

OFF

OFF

1

15

2

3

4

5

6

7

8

9

10

11

12

13

14

D11994

Transmission Wire Side:
(Connector Front View):

E1

SR

–

DIAGNOSTICS

AUTOMATIC TRANSMISSION

DI–653

847

INSPECTION PROCEDURE

HINT:

The shift solenoid valve SR is turned on/off normally when the shift lever is in the D position:

1

Check transmission wire.

PREPARATION:
Disconnect the transmission wire connector.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:

Tester Connection

Specified Condition

20



C (68



F)

7 – Body ground

11 to 15 

Ω

NG

Go to step 3.

OK

D14166

ECM:

E8

E7

E6

E5

E4

SR

DI–654

–

DIAGNOSTICS

AUTOMATIC TRANSMISSION

848

2

Check harness and connector (Transmission wire – ECM)

PREPARATION:
(a)

Connect the transmission wire connector.

(b)

Disconnect the connector of the ECM.

CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:

Tester Connection

Specified Condition

20



C (68



F)

E7 – 9 (SR) – Body ground

11 to 15 

Ω

NG

Repair or replace the harness or connector
(See page 

IN–35

).

OK

Replace the ECM (See page 

SF–80

).