Toyota Tacoma (2015-2018) Service Manual: System Diagram

Toyota Tacoma (2015-2018) Service Manual / Cruise Control / Dynamic Radar Cruise Control System(for 2gr-fks) / System Diagram

SYSTEM DIAGRAM

Communication Table

Sender	Receiver	Signal	Line
ECM	Millimeter Wave Radar Sensor Assembly	Cruise control operation signal Accelerator pedal idle position signal Accel override operation signal Cruise control speed status signal Approach warning signal Brake signal Cruise control main switch (ON-OFF button) on signal Cruise control mode signal Set vehicle-to-vehicle distance signal Cruise preset vehicle speed signal	CAN
ECM	Skid Control ECU (Master Cylinder Solenoid)1 Skid Control ECU (Brake Actuator Assembly)2	Cruise control operation signal Accelerator pedal idle position signal Cruise control operation request signal Braking request signal Target acceleration from cruise control system signal	CAN
ECM	Combination Meter Assembly	Low speed cancel buzzer request signal Control vehicle speed unit signal Cruise control display ID signal Cruise control vehicle speed signal	CAN
ECM	Forward Recognition Camera	Cruise control operation signal	CAN
Millimeter Wave Radar Sensor Assembly	ECM	Cruise control target acceleration signal Cruise control mode signal Target vehicle detection signal Vehicle-to-vehicle distance control switch status signal Detection of dirt adhesion on millimeter wave radar sensor signal Millimeter wave radar sensor malfunction signal Approach warning signal Bad environment detection signal Cruise control target acceleration raw data signal Force request for millimeter wave radar sensor assembly signal Control status of millimeter wave radar sensor assembly signal	CAN
Millimeter Wave Radar Sensor Assembly	Combination Meter Assembly	Millimeter wave radar sensor beam axis deviation signal	CAN
Skid Control ECU (Master Cylinder Solenoid)1 Skid Control ECU (Brake Actuator Assembly)2	Millimeter Wave Radar Sensor Assembly	Stop light switch status signal Yaw rate sensor zero point signal Yaw rate sensor zero point malfunction signal Under brake control signal	CAN
Skid Control ECU (Master Cylinder Solenoid)1 Skid Control ECU (Brake Actuator Assembly)2	ECM	Wheel speed signal Under TRAC control signal Under VSC control signal Cruise control cancellation request signal Stop light switch control relay malfunction signal Temporary inhibition of brake control signal Under brake control signal Presumed road slope signal Estimated acceleration signal	CAN
Steering Angle Sensor (Spiral Cable with Sensor Sub-assembly)	Millimeter Wave Radar Sensor Assembly	Steering angle sensor malfunction signal Steering angle signal Steering angle sensor zero point signal	CAN
Main Body ECU (Multiplex Network Body ECU)	Millimeter Wave Radar Sensor Assembly	Destination information signal	CAN
Yaw Rate and Acceleration Sensor (Airbag Sensor Assembly)	Millimeter Wave Radar Sensor Assembly	Yaw rate sensor signal Yaw rate sensor malfunction signal Yaw rate sensor voltage signal	CAN

*1: for Hydraulic Brake Booster
*2: for Vacuum Brake Booster

Parts Location

PARTS LOCATION ILLUSTRATION *A for Hydraulic Brake Booster *B for Vacuum Brake Booster *C for Automatic Transmission ...

How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: Perform the following procedure to troubleshoot the dynamic radar cruise control system. *: Use the Techstream. PROCEDURE 1. ...

Other materials:

Diagnosis System
DIAGNOSIS SYSTEM 1. DESCRIPTION (a) The steering lock ECU (steering lock actuator or UPR bracket assembly) stores DTCs when a malfunction occurs in the system. These DTCs can be confirmed by using the Techstream. NOTICE: When using the Techstream with the engine switch off to confirm ...

Parts Location
PARTS LOCATION ILLUSTRATION *A for Vacuum Brake Booster *B for Hydraulic Brake Booster *1 SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) *2 SKID CONTROL ECU (MASTER CYLINDER SOLENOID) *3 ...

Removal
REMOVAL PROCEDURE 1. PRECAUTION NOTICE: After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before pr ...