Toyota Tacoma (2015-2018) Service Manual: Problem Symptoms Table

Toyota Tacoma (2015-2018) Service Manual / Cruise Control / Dynamic Radar Cruise Control System(for 2tr-fe) / Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

NOTICE:

Before replacing the ECM, refer to Registration.
w/ Smart Key System: Click here

w/o Smart Key System: Click here
When the millimeter wave radar sensor assembly is replaced with a new one, adjustment of the radar sensor beam axis must be performed.
Click here
When replacing the forward recognition camera, always replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle. As a result, a DTC may be stored.
If the forward recognition camera has been replaced with a new one, be sure to perform Recognition Camera/Target Position Memory and Recognition Camera Axis Adjust.
Click here

HINT:

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Dynamic Radar Cruise Control System

Symptom	Suspected Area	Link
The dynamic radar cruise control system cannot be turned on using the cruise control main switch (ON-OFF button)	CAN communication system
	Cruise control switch circuit
	Cruise main indicator light circuit
	Combination meter assembly
	Millimeter wave radar sensor assembly
	ECM
The dynamic radar cruise control mode cannot be changed between vehicle-to-vehicle distance control mode and constant speed control mode	CAN communication system
	Cruise control switch circuit
	Combination meter assembly
	ECM
The vehicle-to-vehicle distance cannot be changed	CAN communication system
	Distance control switch circuit
	Combination meter assembly
	Millimeter wave radar sensor assembly
	Forward recognition camera
	ECM
Vehicle speed setting cannot be performed (in constant speed control mode)	Fail-safe chart
	CAN communication system
	Cruise control switch circuit
	Stop light switch circuit
	Automatic transmission system (for AC60E)
	Automatic transmission system (for AC60F)
	Vehicle stability control system
	ECM
Vehicle speed setting cannot be performed (in vehicle-to-vehicle distance control mode)	Perform millimeter wave radar sensor assembly adjustment*
	Fail-safe chart
	Forward recognition camera is temporarily unavailable
	Millimeter wave radar sensor is dirty
	Millimeter wave radar sensor assembly beam axis not adjusted
	CAN communication system
	Cruise control switch circuit
	Automatic transmission system (for AC60E)
	Automatic transmission system (for AC60F)
	Millimeter wave radar sensor assembly
	Forward recognition camera
	Vehicle stability control system
	Combination meter assembly
	ECM
Control of vehicle speed by the dynamic radar cruise control system is canceled (in constant speed control mode)	Fail-safe chart
	CAN communication system
	Cruise control switch circuit
	Stop light switch circuit
	Automatic transmission system (for AC60E)
	Automatic transmission system (for AC60F)
	Vehicle stability control system
	ECM
Control of vehicle speed by the dynamic radar cruise control system is canceled (in vehicle-to-vehicle distance control mode)	Perform millimeter wave radar sensor assembly adjustment*
	Fail-safe chart
	Forward recognition camera is temporarily unavailable
	Millimeter wave radar sensor is dirty
	Millimeter wave radar sensor assembly beam axis not adjusted
	CAN communication system
	Cruise control switch circuit
	Automatic transmission system (for AC60E)
	Automatic transmission system (for AC60F)
	Millimeter wave radar sensor assembly
	Forward recognition camera
	Vehicle stability control system
	Combination meter assembly
	ECM
Hunting/vehicle speed is not constant (in constant speed control mode)	CAN communication system
	Vehicle stability control system
	ECM
Hunting/vehicle speed is not constant (in vehicle-to-vehicle distance control mode)	Millimeter wave radar sensor assembly is dirty
	Millimeter wave radar sensor assembly beam axis not adjusted
	CAN communication system
	Vehicle stability control system
	Millimeter wave radar sensor assembly
	ECM
Pulling the cruise control main switch to CANCEL does not cancel control of vehicle speed by the dynamic radar cruise control system	Cruise control switch circuit
	ECM
Moving the shift lever does not cancel control of vehicle speed by the dynamic radar cruise control system	Park/neutral position switch assembly (for AC60E)
	Park/neutral position switch assembly (for AC60F)
	Shift lock control unit assembly (for AC60E)
	Shift lock control unit assembly (for AC60F)
	Automatic transmission system (for AC60E)
	Automatic transmission system (for AC60F)
	ECM
Depressing the brake pedal does not cancel control of vehicle speed by the dynamic radar cruise control system	Stop light switch circuit
	ECM
Even though the millimeter wave radar sensor is not dirty, the warning message "Clean Sensor" is displayed	Millimeter wave radar sensor assembly
The vehicle approach warning buzzer does not sound	Skid control buzzer circuit
	Check millimeter wave radar sensor assembly installation position
	Check installation of forward recognition camera
	Forward recognition camera
	Millimeter wave radar sensor assembly
Even though the vehicle approach warning buzzer is sounding, brake control is not performed when decelerating	CAN communication system
	Vehicle stability control system
	Millimeter wave radar sensor assembly
	ECM
Even though the SET function is operating, the cruise SET indicator does not illuminate	CAN communication system
	Cruise SET indicator light circuit
	Combination meter assembly
	ECM
The cruise control indicator remains illuminated	CAN communication system
	Combination meter assembly
	ECM
Indicators are not illuminated on the multi-information display in the combination meter assembly	CAN communication system
	Combination meter assembly
	ECM
The buzzer does not sound when control of vehicle speed by the dynamic radar cruise control is canceled	CAN communication system
	Combination meter assembly
	ECM

*: If error code 7 is output during beam axis alignment, clear the DTCs and perform beam axis alignment again.

Operation Check

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Terminals Of Ecu

TERMINALS OF ECU CHECK ECM HINT: The standard voltage, resistance and waveform between each pair of the ECM terminals is shown in the table below. The appropriate conditions for checking each p ...

Other materials:

Check Mode Procedure
CHECK MODE PROCEDURE 1. DESCRIPTION (a) Check mode has a higher sensitivity to malfunctions and can detect malfunctions that normal mode cannot detect. Check mode can also detect all the malfunctions that normal mode can detect. In check mode, DTCs are detected with 1 trip detection logic. ...

Receiver Error (C2176/76)
DESCRIPTION Tire pressure warning valve and transmitter signals are transmitted to the tire pressure warning ECU and receiver in the vehicle as radio waves. DTC No. Detection Item DTC Detection Condition Trouble Area Note C2 ...

Transmission Fluid Temperature Sensor "A" Circuit Short To Ground (P071011)
DESCRIPTION The No. 1 ATF temperature sensor converts the fluid temperature into a resistance value for use by the ECM. The ECM applies a voltage to the temperature sensor through terminal THO1 of the ECM. The sensor resistance changes with the ATF temperature. As the temperature becomes hi ...