Toyota Tacoma manuals

Toyota Tacoma (2015-2018) Service Manual: On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. CHECK FUEL PUMP ASSEMBLY OPERATION

(a) Check fuel pressure.

(1) Connect the Techstream to the DLC3.

(2) Start the engine.

(3) Turn the Techstream on.

(4) Enter the following menus: Powertrain / Engine / Active Test / Control the Target Fuel Pressure.

(5) Check that the fuel pressure fluctuates when the target fuel pressure changes.

HINT:

The target fuel pressure operation lowers the target fuel pressure by 12.5% or increases the target fuel pressure by 25%.

Standard:

Fuel pressure fluctuates in accordance with the Techstream operation.

If the result is not as specified, replace the fuel delivery pipe sub-assembly (fuel pressure sensor).

(b) Check operating sound.

(1) Remove the V-bank cover sub-assembly (See page (2) Start the engine. (2) Start the engine. ).

(2) Start the engine.

(3) Using a sound scope, check the operating sound of the pump.

If no sound can be heard, check the fuel pump, wire harness and ECM.

(4) Stop the engine.

(5) Install the V-bank cover sub-assembly (See page Removal Removal ).

Components
COMPONENTS ILLUSTRATION *1 FUEL PUMP ASSEMBLY *2 FUEL PUMP LIFTER ASSEMBLY *3 FUEL PUMP LIFTER GUIDE *4 ...

Removal
REMOVAL PROCEDURE 1. REMOVE INTAKE MANIFOLD (See page ) 2. REMOVE WIRE HARNESS CLAMP BRACKET (a) Remove the 2 bolts and wire harness clamp bracket. ...

Other materials:

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 sy ...

TRAC OFF Indicator Light Remains ON
DESCRIPTION In 2WD mode: Operation of the VSC OFF switch changes the vehicle between normal mode, TRAC OFF mode (AUTO LSD mode) and VSC OFF mode. During normal mode, pressing the VSC OFF switch for a short amount of time changes the vehicle to TRAC OFF mode (AUTO LSD mode), TR ...

Inspection
INSPECTION PROCEDURE 1. INSPECT COUNTER GEAR (a) Using a dial indicator and 2 V-blocks, measure the counter gear runout. Maximum runout: 0.03 mm (0.00118 in.) If the runout is more than the maximum, replace the counter gear. HINT: Measure the 3 areas shown in the illust ...

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