Toyota Tacoma (2015-2018) Service Manual: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
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.
Manual Transmission System|
Symptom |
Suspected Area |
See page |
|---|---|---|
|
Abnormal noise |
Oil level (Low) |
|
|
Oil (Wrong) |
- |
|
|
Gear (Input shaft) (worn or damaged) |
|
|
|
Gear (Output shaft) (worn or damaged) |
|
|
|
Gear (Counter shaft) (worn or damaged) |
|
|
|
Bearing (worn or damaged) |
|
|
|
Bearing (Input shaft) (worn or damaged) |
|
|
|
Bearing (Output shaft) (worn or damaged) |
|
|
|
Bearing (Counter shaft) (worn or damaged) |
|
|
|
Oil leakage |
Oil level (High) |
|
|
Gasket (Damaged) |
|
|
|
O-ring (Worn or damaged) |
|
|
|
Hard shifting or will not shift |
Shift fork (Input shaft) (Worn) |
|
|
Shift fork (Counter shaft) (Worn) |
|
|
|
Synchronizer ring (Input shaft) (worn or damaged) |
|
|
|
Synchronizer ring (Output shaft) (worn or damaged) |
|
|
|
Synchronizer ring (Counter shaft) (worn or damaged) |
|
|
|
Shift key spring (Input shaft) (damaged) |
|
|
|
Shift key spring (Counter shaft) (damaged) |
|
|
|
Jumps out of gear |
Shift fork (Input shaft) (Worn) |
|
|
Shift fork (Counter shaft) (Worn) |
|
|
|
Gear (Input shaft) (worn or damaged) |
|
|
|
Gear (Output shaft) (worn or damaged) |
|
|
|
Gear (Counter shaft) (worn or damaged) |
|
|
|
Bearing (Input shaft) (worn or damaged) |
|
|
|
Bearing (Output shaft) (worn or damaged) |
|
|
|
Bearing (Counter shaft) (worn or damaged) |
|
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How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use the following procedure to troubleshoot the manual transaxle system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGH ...
Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) To check DTCs, connect the Techstream to the Data Link Connector 3 (DLC3)
of the vehicle. The Techstream displays DTCs and freeze frame data. The DTCs and
fre ...
Other materials:
System Diagram
SYSTEM DIAGRAM
Transmitting ECU (Transmitter)
Receiving ECU
Signal
Communication Method
4 wheel drive control ECU
Skid control ECU (Brake actuator assembly)
Rear differential lock status signal
H ...
Four Wheel Drive (4WD) Range Signal Circuit Range / Performance (P279E)
DESCRIPTION
When the transfer position switch is switched, the 2-4 terminal and LO terminal
change to one of the following ON/OFF combinations listed in the table below.
Terminal
2WD
Between 2WD and H4
H4
Between H4 and L4
L4
...
Stop Light Switch
Components
COMPONENTS
ILLUSTRATION
Inspection
INSPECTION
PROCEDURE
1. INSPECT STOP LIGHT SWITCH
(a) Check the resistance.
(1) Measure the resistance using an ohmmeter, and check the results in accordance
with the value(s) in the table below.
Standard:
Tester Connectio ...
