B: REPLACE ECM (See REMOVAL (1GR-FE))
C: REPLACE ECM (See REMOVAL (2UZ-FE))
D: REPLACE ECM (See REMOVAL (3UR-FE))
E: REPLACE ECM (See REMOVAL (3UR-FBE))
A: USE SIMULATION METHOD TO CHECK (see ELECTRONIC CIRCUIT INSPECTION
PROCEDURE )
CRUISE CONTROL SWITCH CIRCUIT
DESCRIPTION
The cruise control main switch operates 7 functions: SET, COAST, TAP-DOWN, RESUME, ACCEL, TAP-
UP, and CANCEL. The SET, TAP-DOWN and COAST functions, and the RESUME, TAP-UP and ACCEL
functions are operated with the same switch. The cruise control main switch is an automatic return type switch
which turns on only while operating it in each arrow direction and turns off after releasing it. The internal
contact point of the cruise control main switch is turned on with the switch operation. Then the ECM reads the
resistance value that has been changed by the switch operation to control SET, COAST, RESUME, ACCEL and
CANCEL.
WIRING DIAGRAM
Fig. 16: Cruise Control Switch Circuit - Wiring Diagram
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
INSPECTION PROCEDURE
2009 Toyota Tundra
2009 ACCESSORIES AND EQUIPMENT Cruise Control - Tundra