Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Precaution

PRECAUTION

1. IGNITION SWITCH EXPRESSION

(a) The type of ignition switch used on this model differs depending on the specifications of the vehicle. The expressions listed in the table below are used in this section.

Expression

Ignition Switch (Position)

Engine Switch (Condition)

Ignition Switch off

LOCK

Off (Lock)

Ignition Switch ACC

ACC

On (ACC)

Ignition Switch ON

On

On (IG)

Engine Start

START

On (Start)

2. TROUBLESHOOTING PRECAUTIONS

  • When there is a malfunction in the contact point of the terminals or installation problems with parts, removal and reinstallation of the suspected problem parts may return the system to its normal condition either completely or temporarily.
  • In order to determine the location of the malfunction, be sure to check the engine conditions at the time the malfunction occurred, through data such as DTC and freeze frame data outputs. Record this information before disconnecting any connectors and removing or installing any parts.
  • Since the Vehicle Stability Control system may be influenced by malfunctions in other systems, be sure to check for DTCs in other systems.
  • Be sure to remove and reinstall the hydraulic brake booster and each sensor with the ignition switch OFF unless specified in the inspection procedure.
  • When removing and installing the hydraulic brake booster and each sensor, be sure to check that the normal display is output during a test mode inspection and a DTC output inspection after reinstalling all the parts.
  • After replacing the skid control ECU (master cylinder solenoid) and/or the yaw rate and acceleration sensor (airbag sensor assembly), be sure to perform the yaw rate sensor and acceleration sensor zero point calibration (See page ). The CAN communication system is used for communication between the skid ).
  • The CAN communication system is used for communication between the skid control ECU (master cylinder solenoid), steering angle sensor (spiral cable sub-assembly), yaw rate and acceleration sensor (airbag sensor assembly) and other ECUs.
  • If there is trouble in the CAN communication line, the DTC relating to the communication line is output. If a DTC relating to the CAN communication line is output, repair the malfunction in the communication line and troubleshoot the Vehicle Stability Control system.
  • Since the CAN communication line has a specific length and route, it cannot be repaired temporarily with a bypass wire.
Parts Location
PARTS LOCATION ILLUSTRATION *A for Automatic Transmission - - *1 FRONT SPEED SENSOR LH *2 FRONT SPEED ...

How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT Techstream can be used in steps 3, 6, 9 and 12. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT ...

Other materials:

Parking brake
Lever type ● Sets the parking brake Fully set the parking brake while depressing the brake pedal. At this time, the indicator will come on. ● Release the parking brake Press the button Turn the lever clockwise Press it in completely Pedal type Sets the parking brake*. ...

Diagnosis System
DIAGNOSIS SYSTEM 1. DESCRIPTION (a) Smart key system (for entry function) data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3). In some cases, a malfunction may be occurring in the smart key system. When the system seems to be malfunctioning, ...

Steering Angle Sensor Initialization Incomplete (C1439,C1445)
DESCRIPTION The skid control ECU (brake actuator assembly) acquires steering angle sensor zero point every time the ignition switch is turned 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. The steering angle ...

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