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

Toyota Tacoma (2015-2018) Service Manual / Pre-collision / Pre-collision System / Fail-safe Chart

FAIL-SAFE CHART

FAIL-SAFE FUNCTION

(a) When a malfunction occurs in the pre-collision system, a message will be displayed on the multi-information display and the pre-collision system will be disabled depending on the malfunction.

Warning Message	Cause	DTC No.	Conditions to Return to Normal
"Pre-Collision System Malfunction Visit Your Dealer"	Pre-collision system malfunction	C1A02	System returns to normal
		C1A10	After system returns to normal, ignition switch is turned off and then ON
		C1A11	After system returns to normal, ignition switch is turned off and then ON
		C1A14	After system returns to normal, ignition switch is turned off and then ON
		C1A46	After system returns to normal, ignition switch is turned off and then ON
		C1A47	After system returns to normal, ignition switch is turned off and then ON
		C1A4A	System returns to normal
		C1A4B	System returns to normal
		C1A50	System returns to normal
		C1A63	System returns to normal
		C1A69	After system returns to normal, ignition switch is turned off and then ON
		C1AA0	After system returns to normal, ignition switch is turned off and then ON
		C1AA8	After system returns to normal, ignition switch is turned off and then ON
		C1AA9	After system returns to normal, ignition switch is turned off and then ON
		C1AAE	System returns to normal
		U0100	System returns to normal
		U0125	System returns to normal
		U0126	System returns to normal
		U0129	System returns to normal
		U0235	System returns to normal
		U023A	System returns to normal
		U1002	System returns to normal
"Pre-Collision System Unavailable"	Millimeter wave radar sensor assembly misaligned		Millimeter wave radar sensor assembly beam axis adjustment is completed and beam axis learning is completed
"Pre-Collision System Unavailable Clean Sensor"	Foreign matter attached to millimeter wave radar sensor assembly		Millimeter wave radar sensor assembly is cleaned
"Front Camera Unavailable"	Forward recognition camera temporarily malfunctioning Abnormal forward recognition camera voltage Forward recognition camera temperature outside of operational range		Forward recognition camera temperature returns to normal Forward recognition camera voltage returns to normal
"Front Camera Unavailable Remove Debris On Windshield"	The forward recognition camera or windshield glass within the field of view of the forward recognition camera is dirty or fogged up		The forward recognition camera or windshield glass within the field of view of the forward recognition camera is dirty or fogged up is cleaned

Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART Pre-collision System DTC No. Detection Item Link C1A02 Vehicle Information Not Obtained ...

Lost Communication With Image Processing Module "A" (U023A)

DESCRIPTION The millimeter wave radar sensor assembly communicates with the forward recognition camera via CAN communication. If there is a communication error with the forward recognition camera ...

Other materials:

Steering Angle Sensor Zero Point Malfunction (C1290)
DESCRIPTION The skid control ECU (master cylinder solenoid) acquires steering angle sensor zero point every time the ignition switch is turned to ON and the vehicle is driven at 35 km/h (22 mph) or more for approximately 5 seconds. The ECU also stores the previous zero point. If the front wh ...

Front Radar Sensor Incorrect Axial Gap (C1A11)
DESCRIPTION When the vehicle is determined to be driving in a straight line or on a gradual curve based on signals from the yaw rate sensor, etc., the millimeter wave radar sensor assembly performs self diagnosis to check if the sensor beam axis has deviated. If the millimeter wave radar sens ...

System Description
SYSTEM DESCRIPTION 1. FRONT PASSENGER OCCUPANT CLASSIFICATION SYSTEM (a) General Description (1) The front passenger occupant detection ECU determines whether the front passenger seat is occupied by an adult or child (with child seat) or is unoccupied, based on the load that is applied to the ...