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 this system before inspecting the suspected areas below.
  • If the problem only occurs in certain locations or at certain times of day, check for wave interference.
  • If the vehicle components are added, check for wave interference from the added components.
Engine Immobiliser System (w/ Smart Key System)

Symptom

Suspected Area

See page

Security indicator light does not blink

Proceed to "Security Indicator Light Does not Blink"

Engine immobiliser system does not operate properly

Proceed to "Immobiliser System does not Operate Properly"

Engine cannot be started*1

Certification ECU (smart key ECU assembly)

ECM

SFI system

Power source mode cannot be changed*1

Engine switch

Certification ECU (smart key ECU assembly)

Steering lock lock/unlock not possible*2

Steering lock ECU (steering lock actuator or upr bracket assembly)

  • *1: Refer to Problem Symptoms Table for Smart Key System (for Start Function).
  • *2: Refer to Problem Symptoms Table for Steering Lock System.
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: Use this procedure to troubleshoot the engine immobiliser system. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO W ...

Registration
REGISTRATION PROCEDURE 1. DESCRIPTION OF CODE REGISTRATION HINT: Registering an ID code enables the entry and start function, wireless door lock control function and engine immobiliser ...

Other materials:

Components
COMPONENTS ILLUSTRATION *1 FORWARD RECOGNITION CAMERA *2 FORWARD RECOGNITION LATCH *3 NO. 1 FORWARD RECOGNITION COVER - - ...

Lost Communication With Vehicle Dynamics Control Module (U0122)
DESCRIPTION This DTC is detected if communication is lost with the skid control ECU (brake actuator assembly). DTC No. Detection Item DTC Detection Condition Trouble Area U0122 Lost Communication with Vehicle Dynamics Contro ...

Installation
INSTALLATION CAUTION / NOTICE / HINT HINT: Perform "Inspection After Repairs" after replacing the fuel delivery pipe assembly LH (fuel pressure sensor) (See page ). PROCEDURE 1. INSTALL FUEL PIPE PLUG SUB-ASSEMBLY (a) Install a new O-ring, new No. 1 fuel injector back-up ring, new ...

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