Toyota Tacoma (2015-2018) Service Manual: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
- Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
- Inspect the fuses and relays related to the system before inspecting the suspected areas below.
- If the problem occurs in certain locations or times of day, the possibility of wave interference is high.
- If a malfunction occurred after optional components were installed at the dealer, check if there is wave interference from the components.
|
Symptom |
Suspected Area |
See page |
|---|---|---|
|
Power source mode does not change to on (IG) or on (ACC) |
Refer to "Power Source Mode does not Change to ON (IG and ACC)" |
|
|
Power source mode does not change to on (IG) |
Refer to "Power Source Mode does not Change to ON (IG)" |
|
|
Power source mode does not change to on (ACC) |
Refer to "Power Source Mode does not Change to ON (ACC)" |
|
|
Engine does not start |
Refer to "Engine does not Start" |
|
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Customize Parameters
CUSTOMIZE PARAMETERS
PROCEDURE
1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
HINT:
The following items can be customized.
NOTICE:
When the customer requests a change in a function, ...
Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) Smart key system (for start function) data and the Diagnostic Trouble Codes
(DTCs) can be read through the Data Link Connector 3 (DLC3) of the vehicle. When
t ...
Other materials:
Automatic High Beam Camera (B124C)
DESCRIPTION
The main body ECU (multiplex network body ECU) detects a high beam headlight
illumination request signal of the automatic high beam system from the forward recognition
camera
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
...
How To Proceed With Troubleshooting
HOW TO PROCEED WITH TROUBLESHOOTING
1. OPERATION FLOW
HINT:
Perform troubleshooting in accordance with the procedures below. The following
is an outline of basic troubleshooting procedures. Confirm the troubleshooting procedures
for the circuit you are working on before beginning troubleshoot ...
Installation
INSTALLATION
PROCEDURE
1. INSTALL LOWER NO. 2 INSTRUMENT PANEL AIRBAG ASSEMBLY
(a) Connect the airbag connector.
NOTICE:
When handling the airbag connector, take care not to damage the airbag
wire harness.
(b) Push in the airbag conn ...
