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:

Ambient Temperature Sensor Circuit (B1412)
DESCRIPTION The ambient temperature sensor is installed in front of the condenser to detect the ambient temperature which is used to control the air conditioning system AUTO mode. This sensor is connected to the air conditioning amplifier assembly and detects fluctuations in the ambient tempe ...

Rear Differential Lock Solenoid Circuit Low (P17C0)
DESCRIPTION This DTC is output when a malfunction is detected due to a short to ground occurring in the differential lock coil drive circuit of the rear differential. DTC No. Detection Item DTC Detection Condition Trouble Area P17C0 ...

Pressure Sensor Circuit (B1423/23)
DESCRIPTION This DTC is stored if refrigerant pressure on the high pressure side is extremely low (176 kPa (1.8 kgf/cm2, 26 psi) or less) or extremely high (3140 kPa (32.0 kgf/cm2, 455 psi) or more). The air conditioner pressure sensor, which is installed on the pipe on the high pressure side ...

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