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
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). - 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:
System Description
SYSTEM DESCRIPTION
1. POWER WINDOW CONTROL SYSTEM DESCRIPTION
(a) The power window control system controls the power window operation using
the power window regulator motors. The main controls of this system are the power
window regulator master switch assembly (mounted on the driver door), po ...
Brake System (P157800)
DESCRIPTION
This DTC is output when the VSC system has a problem. Check the VSC system when
this DTC is output.
DTC No.
DTC Detection Condition
Trouble Area
MIL
Note
P157800
Diagnosis Condition:
Cr ...
Auxiliary boxes
Front
Pull the lid down.
Under the rear seats (Access Cab
models)
Pull up the lever.
Raise the bottom cushion up.
Turn the knob counterclockwise.
Open the lid.
Press the lid against the bottom
of the lower cushion until it is supported by the hookand- loop fastener.
Make sur ...
