Toyota Tacoma manuals

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

FAIL-SAFE CHART

FAIL-SAFE FUNCTION

(a) When a malfunction occurs in the lane departure alert system, a message will be displayed on the multi-information display in the combination meter assembly and the lane departure alert system will be disabled depending on the malfunction.

Warning Message

Cause

Fail-safe Operation

Conditions to Return to Normal Condition

Lane Departure Alert Function

Vehicle Sway Warning

Lane Departure Alert Malfunction Visit Your Dealer

Lane departure alert system is malfunctioning

X

X

After system returns to normal, ignition switch is turned off and then to ON

Front Camera Unavailable

  • Abnormal forward recognition camera voltage
  • Forward recognition camera temperature outside of operational range
  • Other forward recognition camera malfunction

X

X

  • Forward recognition camera temperature returns to normal
  • Forward recognition camera voltage returns to normal
  • Forward recognition camera returns to normal

Front Camera Vision Blocked Clean and Demist Windshield

Forward recognition camera view is unclear

X

X

Forward recognition camera or area of windshield glass in front of forward recognition camera is cleaned

X: Control is suspended

Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART LANE DEPARTURE ALERT SYSTEM DTC No. Detection Item Link C1A47 Steering Angle Sensor ...

Steering Angle Sensor (C1A47)
DESCRIPTION The forward recognition camera receives steering angle information from the spiral cable with sensor sub-assembly. If the forward recognition camera detects a spiral cable with sensor ...

Other materials:

Low Power Supply Voltage Malfunction (C1241)
DESCRIPTION If there is a problem with the skid control ECU (master cylinder solenoid) power supply circuit, the skid control ECU outputs the DTC and prohibits operation under the fail-safe function. If the voltage supplied to terminal IG1 is not within the DTC detection threshold due to mal ...

Inspection
INSPECTION PROCEDURE 1. INSPECT OIL PUMP RELIEF VALVE (a) Coat the oil pump relief valve with engine oil and check that it falls smoothly into the valve hole by its own weight. If the valve does not fall smoothly, replace the timing chain cover assembly. ...

On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. CHECK BRAKE BOOSTER ASSEMBLY (a) Airtightness check. Text in Illustration *a Correct *b Incorrect (1) Start the engine and stop it after 1 or 2 minut ...

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