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:
Reassembly
REASSEMBLY
PROCEDURE
1. INSTALL OIL PUMP COVER
(a) Apply fresh engine oil to the drive and driven rotors.
(b) Place the drive and driven rotors into the timing chain cover assembly
with the marks facing the oil pump cover side.
Text in Illustration
*a
...
Inspection
INSPECTION
PROCEDURE
1. INSPECT INPUT SHAFT
(a) Using a dial indicator and 2 V-blocks, measure the shaft runout.
Maximum runout:
0.03 mm (0.0012 in.)
If the runout is more than the maximum, replace the input shaft.
HINT:
Measure the 3 areas shown in the illustration wit ...
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT INDICATOR LIGHT
(a) Inspect the 4HI Indicator Light:
(1) Start the engine.
(2) Change the 4WD control switch from 2WD to 4H.
(3) Check the 4HI indicator light.
OK:
The 4HI indicator light comes on or the 4HI indicator light comes on after it
is b ...
