Toyota Sequoia (2005). Manual — part 213

D14170

E1
Electronically Controlled
Transmission Solenoid

ECM

10

E7

S2

15

B

W–L

S2

+B

CPU

–

DIAGNOSTICS

AUTOMATIC TRANSMISSION

DI–647

841

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 S2

ON

Range check (High resistance)

Shift solenoid valve S2

OFF

TYPICAL MALFUNCTION THRESHOLDS

Detection criteria

Threshold

Range check (Low resistance)

Shift solenoid valve S2 resistance

8

Ω

or less

Range check (High resistance)

Shift solenoid valve S2 resistance

100 k

Ω

or more

COMPONENT OPERATING RANGE

Parameter

Standard value

Shift solenoid valve S2

Resistance: 11 to 15

Ω

at 20

°

C (68

°

F)

WIRING DIAGRAM

ECM command gearshift

Shift solenoid valve S2

1st

2nd

3rd

4th

5th

OFF

OFF

ON

OFF

ON

1

15

2

3

4

5

6

7

8

9

10

11

12

13

14

D11994

Transmission Wire Side:
(Connector Front View):

E1

S2

DI–648

–

DIAGNOSTICS

AUTOMATIC TRANSMISSION

842

INSPECTION PROCEDURE

HINT:

The shift solenoid valve S2 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)

15 – Body ground

11 to 15

Ω

NG

Go to step 3.

OK

D14166

ECM:

E8

E7

E6

E5

E4

S2

–

DIAGNOSTICS

AUTOMATIC TRANSMISSION

DI–649

843

2

Check harness and connector (Transmission wire – ECM)

PREPARATION:
(a)

Connect the transmission wire connector.

(b)

Disconnect the ECM connector.

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

Tester Connection

Specified Condition

20

C (68

F)

E7 – 10 (S2) – 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

).

D11992

(+)

(–)

Shift Solenoid Valve S2:

DI–650

–

DIAGNOSTICS

AUTOMATIC TRANSMISSION

844

3

Check shift solenoid valve S2.

PREPARATION:
Remove the shift solenoid valve S2 (See page

AT–10

).

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

Tester Connection

Specified Condition

20

C (68

F)

Solenoid Connector (S2) – Solenoid

Body (S2)

11 to 15

Ω

CHECK:
Connect the positive (+) lead to the terminal of the solenoid con-
nector, and the negative (–) lead to the solenoid body.
OK:

The solenoid makes an operating sound.

NG

Replace the shift solenoid valve S2
(See page

AT–10

).

OK

Repair or replace the transmission wire
(See page

AT–7

).