Toyota Tacoma manuals

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

DIAGNOSIS SYSTEM

DIAGNOSIS FUNCTION

(a) The diagnosis function turns off the cruise control indicator, illuminates the master warning light and displays a warning message when a malfunction is detected. When a malfunction is detected in the dynamic radar cruise control system, DTCs are stored in the ECM or millimeter wave radar sensor assembly.

*1

Cruise Control Indicator

(Constant Speed Control Mode)

*2

Cruise Control Indicator

(Vehicle-to-vehicle Distance Control Mode)

*3

Master Warning Light

NOTICE:

  • If DTCs related to the communication system are stored, "Cruise Control Malfunction Visit Your Dealer", which is displayed in the combination meter assembly, disappears when the system returns to normal.
  • If DTCs not related to the communication system are stored, "Cruise Control Malfunction Visit Your Dealer", which is displayed in the combination meter assembly, disappears when the ignition switch off then back ON after the system returns to normal.

DESCRIPTION

(a) The ECM and millimeter wave radar sensor assembly control the dynamic radar cruise control system of the vehicle. The data and DTCs relating to the dynamic radar cruise control system can be read from the DLC3 of the vehicle. Use the Techstream to check and solve the problem.

CHECK DLC3

(a) Check the DLC3.

Click here CHECK INDICATOR

CHECK INDICATOR

(a) Turn the ignition switch to ON.

(b) Check that the cruise control indicator illuminates when the dynamic radar cruise control system is turned on using the cruise control main switch (ON-OFF button), and that the indicator turns off when the dynamic radar cruise control system is turned off using the cruise control main switch (ON-OFF button).

*1

Cruise Control Indicator

(Constant Speed Control Mode)

*2

Cruise Control Indicator

(Vehicle-to-vehicle Distance Control Mode)

Road Test
ROAD TEST PROBLEM SYMPTOM CONFIRMATION HINT: The dynamic radar cruise control system has 2 cruise control modes: constant speed control mode and vehicle-to-vehicle distance control mode ...

Problem Symptoms Table
PROBLEM SYMPTOMS TABLE NOTICE: Before replacing the ECM, refer to Registration. w/o Smart Key System: Click here w/ Smart Key System: Click here When the millimeter wave rad ...

Other materials:

Speaker Circuit
DESCRIPTION If there is a short in a speaker circuit, the stereo component amplifier assembly*1 or navigation receiver assembly*2 detects it and stops output to the speakers. Thus sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier assembly ...

System Description
SYSTEM DESCRIPTION 1. ENGINE IMMOBILISER SYSTEM DESCRIPTION The engine immobiliser system is designed to prevent the vehicle from being stolen. This system uses the transponder key ECU assembly that stores the key ID codes of authorized ignition keys. If an attempt is made to start the engine ...

Reassembly
REASSEMBLY PROCEDURE 1. INSTALL COMPRESSOR PICK UP SENSOR (a) Install the compressor pick up sensor with the 3 screws. (b) Engage the clamp. 2. INSTALL MAGNET CLUTCH ASSEMBLY (a) Secure the cooler compressor assembly in a vise between ...

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