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 PRECAUTION
(a) When there is a malfunction in the contact point of the terminals or installation problems with parts, removal and installation of the suspected problem parts may return the system to the normal condition either completely or temporarily.
(b) In order to determine the malfunctioning area, be sure to check the conditions at the time the malfunction occurred, such as by DTC output and record them before disconnecting each connector or removing and installing parts.
(c) Since the Touch Select 2-4 and High-Low System may be influenced by a malfunction in other systems, be sure to check for DTCs in the other systems.
3. CAN COMMUNICATION SYSTEM PRECAUTION
(a) The CAN communication system is used for data communication between each of the ECUs and sensors. If there is trouble in the CAN communication line, the DTC of the communication line is output.
(b) If the DTC of the CAN communication line is output, repair the malfunction in the communication line and troubleshoot the Touch Select 2-4 and High-Low System.
(c) Since the CAN communication line has its own length and route, it cannot be repaired temporarily with the bypass wire, etc.
4. PRECAUTION FOR WHEN TESTING BRAKES, SPEEDOMETER, ETC.
(a) Make sure that the transfer is in 2WD mode.
Parts Location
PARTS LOCATION
ILLUSTRATION
ILLUSTRATION
...
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use the following procedure listed to troubleshoot the touch select
2-4 and high-low system.
*: Use the Techstream.
PROCEDURE
1.
...
Other materials:
Precaution
PRECAUTION
1. EXPRESSIONS OF IGNITION SWITCH
HINT:
The type of ignition switch used on this model differs according to the specifications
of the vehicle. The expressions listed in the table below are used in this section.
Expression
Ignition Switch
(Position)
...
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Rear View Monitor System
DTC Code
Detection Item
See page
C1622
Open or Short Circuit in Back Camera Signal
...
Speed Signal Circuit
DESCRIPTION
The combination meter assembly receives the vehicle speed signal from this circuit.
The wheel speed sensors produce an output that varies according to the vehicle speed.
The wheel speed sensor output is received by the skid control ECU, which uses this
information to create the ve ...