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 this system before inspecting the suspected areas below.
|
Symptom |
Suspected Area |
See page |
|---|---|---|
|
Wireless control function and entry function do not operate |
Proceed to "All Door Entry Lock / Unlock Functions and Wireless Functions do not Operate" |
|
|
Wireless control function does not operate but entry function operates |
Electrical key transmitter sub-assembly |
- |
|
Only answer-back function does not operate normally |
Proceed to "No answer-back" |
|
|
Only automatic lock function does not operate normally |
Perform operation check |
|
|
Lighting system (front door courtesy light switch circuit) |
|
|
|
Lighting system (rear door courtesy light switch circuit) |
|
|
|
Main body ECU (multiplex network body ECU) |
- |
|
|
Only illuminated entry function does not operate |
Perform operation check |
|
|
Lighting system |
|
|
|
Main body ECU (multiplex network body ECU) |
- |
|
|
Only door ajar warning function does not operate |
Perform operation check |
|
|
Lighting system (front door courtesy light switch circuit) |
|
|
|
Lighting system (rear door courtesy light switch circuit) |
|
|
|
Main body ECU (multiplex network body ECU) |
- |
|
|
Only panic alarm function does not operate |
Perform operation check |
|
|
Lighting system (interior lights) |
|
|
|
Lighting system (hazard warning lights) |
|
|
|
Horn system |
|
|
|
Main body ECU (multiplex network body ECU) |
- |
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Operation Check
OPERATION CHECK
1. NOTICE WHEN CHECKING FOLLOWING
(a) Wireless door lock/unlock function:
This wireless door lock control function operates only when the following 3 conditions
are met:
(1) The ...
Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
The ECU stores trouble codes when malfunctions occur.
The diagnostic system allows for reading of the trouble codes from the DLC3.
Use the Techstream to help diagno ...
Other materials:
Removal
REMOVAL
CAUTION / NOTICE / HINT
HINT:
Use the same procedure for both the LH and RH sides.
The procedure described below is for the LH side.
PROCEDURE
1. REMOVE FRONT NO. 1 WHEEL OPENING EXTENSION PAD
Click here
2. SEPARATE FRONT FENDER LINER
(a) Remove the 2 ...
Brake Warning Light Remains ON
DESCRIPTION
The skid control ECU (brake actuator assembly) is connected to the combination
meter assembly via CAN communication.
If any of the following is detected, the brake warning light remains on:
The skid control ECU (brake actuator assembly) connector is disconnected
from the ...
Short in Driver Side Knee Airbag Squib Circuit (B1860/64-B1863/64)
DESCRIPTION
The driver side knee airbag squib circuit consists of the airbag sensor assembly
and lower No. 1 instrument panel airbag assembly.
The airbag sensor assembly uses this circuit to deploy the airbag when deployment
conditions are met.
These DTCs are stored when a malfunction is dete ...
