Toyota Tacoma manuals

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 the system before inspecting the suspected areas below.
  • If the problem occurs in certain locations or times of day, the possibility of wave interference is high.
  • If a malfunction occurred after optional components were installed at the dealer, check if there is wave interference from the components.
Smart Key System (for Start Function)

Symptom

Suspected Area

See page

Power source mode does not change to on (IG) or on (ACC)

Refer to "Power Source Mode does not Change to ON (IG and ACC)"

Power source mode does not change to on (IG)

Refer to "Power Source Mode does not Change to ON (IG)"

Power source mode does not change to on (ACC)

Refer to "Power Source Mode does not Change to ON (ACC)"

Engine does not start

Refer to "Engine does not Start"

Customize Parameters
CUSTOMIZE PARAMETERS PROCEDURE 1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) HINT: The following items can be customized. NOTICE: When the customer requests a change in a function, ...

Diagnosis System
DIAGNOSIS SYSTEM 1. DESCRIPTION (a) Smart key system (for start function) data and the Diagnostic Trouble Codes (DTCs) can be read through the Data Link Connector 3 (DLC3) of the vehicle. When t ...

Other materials:

Terminals Of Ecu
TERMINALS OF ECU Text in Illustration *a Component without harness connected (Skid Control ECU [Brake Actuator Assembly]) - - Terminal No. (Symbol) Terminal Description 1 (GND2) Pump motor g ...

Tire inflation pressure
■ Tire inflation pressure The recommended cold tire inflation pressure and tire size is displayed on the tire and loading information label. Regular Cab and Double Cab models Access Cab models ■ Inspection and adjustment procedure 1. Tire valve 2. Tire pressure gauge Re ...

Fail-safe Chart
FAIL-SAFE CHART 1. FAIL SAFE OPERATION If there is a problem with any sensor signals or hydraulic brake booster systems, the skid control ECU prohibits the power supply to the actuator in the hydraulic brake booster and informs the ECM of VSC system failure. The hydraulic brake b ...

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