Toyota Tacoma (2015-2018) Service Manual: Fail-safe Chart

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

FAIL-SAFE CHART

HINT:

If any of the following auto cancel conditions are detected while the dynamic radar cruise control system is controlling vehicle speed, the system clears the stored vehicle speed and cancels control of vehicle speed by the dynamic radar cruise control system.

Automatic Cancel Control

Constant Speed Control Mode:

Auto Cancel Condition	Warning				Fail-safe Deactivation Condition
Auto Cancel Condition	Multi-information Display	Master Warning Light	Cruise Control Indicator	Warning Buzzer	Fail-safe Deactivation Condition
Open or short in stop light switch circuit	Cruise Control Malfunction Visit Your Dealer	Illuminates	Does not illuminate	Sounds	Dynamic radar cruise control system is turned off and back on again using the cruise control main switch (ON-OFF button).
Problem with stop light switch input circuit Problem with cruise control main switch cancel circuit Malfunction in the vehicle stability control system Communication stop between skid control ECU (master cylinder solenoid)1 or skid control ECU (brake actuator assembly)2 and ECM	Cruise Control Malfunction Visit Your Dealer	Illuminates	Does not illuminate	Sounds	Ignition switch ON again.
If the following condition occurs, the ECM cancels control of vehicle speed by the dynamic radar cruise control system (stored vehicle speed is maintained): Vehicle speed is less than approximately 40 km/h (25 mph) while driving with the dynamic radar cruise control system controlling vehicle speed	-	Does not illuminate	Illuminates	-	Cruise control main switch is pushed to +RES
Malfunction in SFI system	-	Illuminates	Does not illuminate	-	Dynamic radar cruise control system is turned off and back on again using the cruise control main switch (ON-OFF button).
Vehicle speed is less than stored vehicle speed by approximately 16 km/h (10 mph) or more	-	Does not illuminate	Illuminates	-	Cruise control main switch is pushed to -SET
Vehicle stability control system operates while driving with dynamic radar cruise control system controlling vehicle speed TRAC system operates for a certain period of time while driving with dynamic radar cruise control system controlling vehicle speed. TRAC is turned off VSC is turned off Drive start control is performed	-	Does not illuminate	Illuminates	-	Cruise control main switch is pushed to +RES

Vehicle-to-vehicle Distance Control Mode:

Auto Cancel Condition	Warning				Fail-safe Deactivation Condition
Auto Cancel Condition	Multi-information Display	Master Warning Light	Cruise Control Indicator	Warning Buzzer	Fail-safe Deactivation Condition
Open or short in stop light switch circuit	Cruise Control Malfunction Visit Your Dealer	Illuminates	Does not illuminate	Sounds	Dynamic radar cruise control system is turned off and back on again using the cruise control main switch (ON-OFF button).
Malfunction in SFI system	-	Illuminates	Does not illuminate	-	Dynamic radar cruise control system is turned off and back on again using the cruise control main switch (ON-OFF button).
If either of the following conditions occurs, the ECM cancels control of vehicle speed by the dynamic radar cruise control system (stored vehicle speed is maintained): Vehicle speed is less than approximately 40 km/h (25 mph) while driving with the dynamic radar cruise control system controlling vehicle speed	-	Does not illuminate	Illuminates	Sounds	Cruise control main switch is pushed to +RES
Malfunction in the millimeter wave radar sensor assembly Beam axis of millimeter wave radar sensor assembly misaligned Problem with stop light switch input circuit Problem with cruise control main switch cancel circuit	Cruise Control Malfunction Visit Your Dealer	Illuminates	Does not illuminate	Sounds	Ignition switch ON again.
If the following condition occurs, the ECM cancels control of vehicle speed by the dynamic radar cruise control system (stored vehicle speed is maintained): Millimeter wave radar sensor assembly becomes dirty	Radar Cruise Control Unavailable Clean Sensor	Illuminates	Does not illuminate	Sounds	The condition returns to normal (the resume function can be operated after fail-safe is deactivated).
If any of the conditions listed below occurs, the ECM cancels control of vehicle speed by the dynamic radar cruise control system (stored vehicle speed is maintained): Millimeter wave radar sensor assembly sensitivity reduced because of bad weather such as rain, fog, snow, or sandstorm Brake control by the dynamic radar cruise control system is temporarily unavailable The beam axis of the millimeter wave radar sensor assembly is being aligned The forward recognition camera is temporarily unavailable A system check is being performed after the engine has started	Radar Cruise Control Unavailable	Illuminates	Does not illuminate	Sounds	The conditions return to normal (the resume function can be operated after fail-safe is deactivated).
Vehicle stability control system operates while driving with cruise control system controlling vehicle speed TRAC system operates for a certain period of time while driving with cruise control system controlling vehicle speed. TRAC is turned off VSC is turned off Drive start control is performed	-	Does not illuminate	Illuminates	-	Cruise control main switch is pushed to +RES

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

Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART Dynamic Radar Cruise Control System DTC No. Detection Item MIL Link C1A02 Vehicle Information No ...

Vehicle Control History

VEHICLE CONTROL HISTORY VEHICLE CONTROL HISTORY HINT: A part of the control history can be confirmed using the vehicle control history. Click here ...

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