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 |
|---|---|---|
|
Steering lock does not lock |
Refer to "Steering Lock does not Lock" |
|
|
Steering does not unlock (engine cannot be started) |
Refer to "Unable to Unlock Steering Wheel (Engine cannot Start)" |
|
.gif)
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use the following procedures to troubleshoot the steering lock system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT ...
Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) The steering lock ECU (steering lock actuator or UPR bracket assembly) stores
DTCs when a malfunction occurs in the system. These DTCs can be confirmed by using ...
Other materials:
Terminals Of Ecu
TERMINALS OF ECU
1. ECM
Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specified Condition
E14-20 (TC) - E11-1 (E1)
G - W-B
DTC output signal
Ignition switch ON
...
Installation
INSTALLATION
PROCEDURE
1. INSTALL FRONT DRIVE SHAFT
(a) Coat the spline of the inboard joint shaft with gear oil.
(b) Align the shaft splines and install the front drive shaft with a brass bar
and hammer.
NOTICE:
Set the snap ring with the opening side facing downward.
Be caref ...
Data List / Active Test
DATA LIST / ACTIVE TEST
HINT:
By accessing the Data List displayed on the Techstream, you can perform such
functions as reading the values of switches and sensors without removing any parts.
Reading the Data List is the first step of troubleshooting and is one method to
shorten labor time.
...
