Ab60F Automatic Transmission Transaxle. Automatic Transmission System (For 3Ur-Fe) Pattern Select Switch 2Nd Start Mode Circuit

Drivetrain. Land Cruiser. Urj200, 202 Grj200 Vdj200

Ab60F Automatic Transmission Transaxle. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

DRIVING TEST

INSPECT PATTERN SELECT (2ND) SWITCH

CHECK HARNESS AND CONNECTOR (PATTERN SELECT (2ND) SWITCH - BODY GROUND)

CHECK HARNESS AND CONNECTOR (PATTERN SELECT (2ND) SWITCH - ECM)

AUTOMATIC TRANSMISSION SYSTEM (for 3UR-FE) - Pattern Select Switch 2nd Start Mode Circuit

DESCRIPTION

When 2nd mode is selected with the pattern select (2nd) switch, the ECM controls the shift solenoid valves and the transmission starts from 2nd gear.
The 2nd mode is the system that operates the throttle motor to control engine output to reduce skidding of the driving wheels, and guarantee takeoff acceleration, driving straightness and turning stability.
When the shift lever is in D, the transmission automatically shifts up through 3rd to 6th as usual.

WIRING DIAGRAM

Refer to Pattern Select Switch Power Mode Circuit (Click here).

INSPECTION PROCEDURE

When the pattern select (2nd) switch is pushed, switch contact is made and 2nd mode is selected. To cancel 2nd mode, push the pattern select (2nd) switch once again.

HINT:

2nd mode is automatically canceled when the engine switch is turned off.

1.DRIVING TEST

HINT:

The driving test should be performed on a paved road (nonskid road).

Start the engine.

Turn the 2nd switch off (normal drive mode).

Confirm vehicle response by driving from a parked position to fully depressing the accelerator pedal.

Turn the 2nd switch on and perform the same check as above.
When driving the vehicle with the 2nd switch on and off, check that there is a difference in acceleration.
OK:
There is a difference in acceleration.

Go to step 2

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (Click here)

2.INSPECT PATTERN SELECT (2ND) SWITCH

Land Cruiser. Urj200, 202 Grj200 Vdj200.Ab60F Automatic Transmission Transaxle.Automatic Transmission System (For 1Ur-Fe).Automatic Transmission System (For 3Ur-Fe) Pattern Select Switch 2Nd Start Mode Circuit

Remove the suspension control switch (Click here).

Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
4 (2ND) - 16 (E)
Pattern select (2nd) switch continuously pressed
Below 1 Ω
4 (2ND) - 16 (E)
Pattern select (2nd) switch released
10 kΩ or higher
Text in Illustration
*a
Component without harness connected
(Suspension Control Switch)

Text in Illustration
*a	Component without harness connected (Suspension Control Switch)

REPLACE PATTERN SELECT (2ND) SWITCH (SUSPENSION CONTROL SWITCH) (Click here)

OK

3.CHECK HARNESS AND CONNECTOR (PATTERN SELECT (2ND) SWITCH - BODY GROUND)

Disconnect the suspension control switch connector.

Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Condition
Specified Condition
V4-16 (E) - Body ground
Always
Below 1 Ω
Text in Illustration
*a
Front view of wire harness connector
(to Suspension Control Switch)

Text in Illustration
*a	Front view of wire harness connector (to Suspension Control Switch)

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

4.CHECK HARNESS AND CONNECTOR (PATTERN SELECT (2ND) SWITCH - ECM)

Disconnect the ECM connector.

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

Standard Resistance:

Tester Connection	Switch Condition	Specified Condition
A38-4 (SNWI) - Body ground	Pattern select (2nd) switch continuously pressed	Below 1 Ω
A38-4 (SNWI) - Body ground	Pattern select (2nd) switch released	10 kΩ or higher

Text in Illustration
*a	Front view of wire harness connector (to ECM)

REPAIR OR REPLACE HARNESS OR CONNECTOR

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (Click here)

Tester Connection	Condition	Specified Condition
V4-16 (E) - Body ground	Always	Below 1 Ω