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:

Sound of Portable Player cannot be Heard from Speakers or Sound is Low
PROCEDURE 1. CHECK PORTABLE PLAYER SETTINGS (a) Check the portable player settings. (1) Check that the volume is not set to "0". (2) Check that the mute is off. (b) Check that the sound of the portable player can be heard from the speakers. OK: Sound ...

Slip Indicator Light does not Come ON
DESCRIPTION Refer to Slip Indicator Light Remains ON (See page ). WIRING DIAGRAM Refer to Slip Indicator Light Remains ON (See page ). CAUTION / NOTICE / HINT NOTICE: When replacing the skid control ECU (brake actuator assembly), perform zero point calibration and store system informatio ...

If your vehicle has to be stopped in an emergency
Only in an emergency, such as if it becomes impossible to stop the vehicle in the normal way, stop the vehicle using the following procedure: Steadily step on the brake pedal with both feet and firmly depress it. Do not pump the brake pedal repeatedly as this will increase the effort required ...

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