Toyota Tacoma 2015-2018 Service Manual: Pattern Select Switch Power Mode Circuit

Toyota Tacoma 2015-2018 Service Manual / Ac60e Automatic Transmission / Transaxle / Automatic Transmission System(for 2gr-fks) / Pattern Select Switch Power Mode Circuit

DESCRIPTION

The ECM memory contains the programs for the normal and PWR shift patterns.

By following the programs corresponding to the signals from the pattern select switch assembly, park/neutral position switch and other various sensors, the ECM switches the shift solenoid valves on and off, and controls the transmission gear ratio.

WIRING DIAGRAM

PROCEDURE

1.	INSPECT PATTERN SELECT SWITCH ASSEMBLY

(a) Remove the pattern select switch assembly (See page ).

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

Standard Resistance:

Tester Connection	Switch Condition	Specified Condition
1 (E) - 4 (B)	Pattern select switch assembly pushed	Below 1 Ω
1 (E) - 4 (B)	Pattern select switch assembly not pushed	10 kΩ or higher

Text in Illustration

*1	Pattern Select Switch Assembly

REPLACE PATTERN SELECT SWITCH ASSEMBLY

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

(a) Disconnect the pattern select switch assembly connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
P20-1 (E) - Body ground	Always	Below 1 Ω

Text in Illustration

*a	Front view of wire harness connector (to Pattern Select Switch Assembly)

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.	CHECK HARNESS AND CONNECTOR (PATTERN SELECT SWITCH ASSEMBLY - ECM)

(a) Disconnect the ECM connector.

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

Standard Resistance:

Tester Connection	Switch Condition	Specified Condition
E13-28 (PWMS) - Body ground	Pattern select switch assembly pushed	Below 1 Ω
E13-28 (PWMS) - Body ground	Pattern select switch assembly not pushed	10 kΩ or higher

Text in Illustration

*a	Rear view of wire harness connector (to ECM)

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPAIR OR REPLACE HARNESS OR CONNECTOR

Torque Converter Clutch Pressure Control Solenoid Control Circuit Open (P275613)

DESCRIPTION Refer to the system description for DTC P27567F (See page ). DTC No. DTC Detection Condition Trouble Area SAE P275613 ...

Automatic Transmission System(for 2tr-fe)

...

Other materials:

Towing Tail Relay
Inspection INSPECTION PROCEDURE 1. INSPECT TOWING TAIL RELAY (a) Check the resistance. (1) Using an ohmmeter, measure the resistance between the terminals. Standard: Tester Connection Specified Condition 3-5 10 kΩ or higher ...

Vehicle Information Not Obtained (C1A02)
DESCRIPTION When a new millimeter wave radar sensor assembly is installed, it receives vehicle specification information from the main body ECU (multiplex network body ECU) and stores the information. DTC C1A02 is stored when the millimeter wave radar sensor assembly receives the vehicle spe ...

System Diagram
SYSTEM DIAGRAM Transmitting ECU (Transmitter) Receiving ECU Signal Communication Method 4 wheel drive control ECU Skid control ECU (Brake actuator assembly) High-Low actuator fail 4WD status ...