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)

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 ...

Dtc Check / Clear
DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the Techstream on. (d) Enter the following menus: Powertrain / Radar Cruise 1*1 / ...

Other materials:

Open / Short in Steering Lock ECU (B2781)
DESCRIPTION The steering lock ECU and steering lock motor are built into the steering lock actuator assembly. The steering lock ECU (steering lock actuator or UPR bracket assembly) detects whether the steering lock is in the lock or unlock position by using the lock sensor and unlock sensor ...

Reassembly
REASSEMBLY CAUTION / NOTICE / HINT HINT: Use the same procedure for both the LH and RH sides. The procedure described below is for the LH side. PROCEDURE 1. INSTALL FOG LIGHT BULB (a) Turn the fog light bulb in the direction indicated by the arrow in the illust ...

Switch Failure (B2342)
DESCRIPTION This DTC is stored when the sliding roof ECU (sliding roof drive gear sub-assembly) detects that the sliding roof switch is stuck for 30 seconds or more. DTC No. DTC Detection Condition Trouble Area B2342 Sliding roof ECU ( ...

В© 2011-2021 Copyright www.ttguide.net