Toyota Tacoma (2015-2018) Service Manual: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
- Troubleshooting of the theft deterrent system is based on the premise
that the power door lock control system, wireless door lock control system*1
and smart key system*2 are operating normally. Accordingly, before troubleshooting
the theft deterrent system, first make certain that the power door lock
control system, wireless door lock control system*1 and smart key system*2
are operating normally.
- *1: w/ Wireless Door Lock System
- *2: w/ Smart Key System
- 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 |
|---|---|---|
|
Security indicator light does not illuminate when theft deterrent system is set by key linked operation, wireless operation*1 or entry operation*2. |
Proceed to "Theft Deterrent System cannot be Set or Unset" |
|
|
After doors are locked by key linked operation, wireless operation*1 or entry operation*2 while engine hood is open, theft deterrent system cannot be set by closing the engine hood. |
||
|
Theft deterrent system cannot be unset by key link unlock, wireless door unlock*1 or entry door unlock*2. |
||
|
Theft deterrent system unexpectedly sets itself.*1 |
Proceed to "Theft Deterrent System Unexpectedly Sets Itself" |
|
|
Theft deterrent system cannot be unset by turning the engine on. |
Proceed to "Theft Deterrent System is not Unset when Engine is Running" |
|
|
While alarm is armed, battery is reconnected but alarm does not sound. |
Proceed to "While Alarm is Armed, Battery is Reconnected but Alarm does not Sound" |
|
|
While alarm is armed, engine hood opened but alarm does not sound. |
Proceed to "While Alarm is Armed, Engine Hood is Opened but Alarm does not Sound" |
|
|
Security indicator light does not operate. |
Proceed to engine immobiliser system "Security Indicator Light Does not Blink"*2 |
|
|
Proceed to engine immobiliser system "Security Indicator Light Does not Blink"*3 |
|
|
|
Headlights, taillights or hazard warning lights do not flash while theft deterrent system is in warning operation. |
Proceed to "Some Alarm Functions do not Operate" |
|
|
Interior lights do not illuminate while theft deterrent system is in warning operation. |
||
|
Vehicle horn do not sound while theft deterrent system is in warning operation. |
||
|
Security horn do not sound while theft deterrent system is in warning operation. |
.gif)
- *1: w/ Wireless Door Lock System
- *2: w/ Smart Key System
- *3: w/o Smart Key System
Diagnosis System
DIAGNOSIS SYSTEM
1. CHECK DLC3
(a) Check the DLC3 (See page ).
2. INSPECT BATTERY VOLTAGE
(a) Measure the battery voltage.
Standard Voltage:
11 to 14 V
If the voltage is below 11 V, replace t ...
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND DRIVER SIDE JUNCTION
BLOCK
(a) Disconnect the main body ECU (multiplex network body ECU) connectors.
Text in Illustration ...
Other materials:
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY
(a) for Double Cab
(1) Disconnect the P18 power window regulator master switch assembly connector.
(2) Measure the voltage and resistance according to the value(s) in the table
below.
HINT:
Measure the values on the wi ...
All Doors LOCK/UNLOCK Functions do not Operate Via Door Control Switch or Door
Key Cylinder
DESCRIPTION
The main body ECU (multiplex network body ECU) receives switch signals from the
power window regulator master switch assembly and driver door key cylinder lock
or unlock switch signals from the front door lock assembly. The main body ECU (multiplex
network body ECU) activates the ...
Wireless Charger Main Switch
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE INSTRUMENT PANEL LOWER CENTER FINISH PANEL
(See page )
2. REMOVE MOBILE WIRELESS CHARGER SWITCH
(a) Disengage the 2 claws to remove the mobile wireless charger switch.
...
