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.
Tire Pressure Warning System

Symptom

Suspected Area

See page

Tire pressure warning light does not illuminate despite tire pressure decreasing

Initialization

Check Data List (ID Tire Inflation Pressure)

ID code check (Registration)

Tire pressure warning light remains illuminated (Goes off during initial check)

Tire pressure warning light circuit

Tire pressure warning light remains illuminated (Illuminates during initial check)

Check Data List (ID Tire Inflation Pressure)

Tire pressure adjustment

ID code check (Registration)

Initialization

Initialization cannot be done

Tire pressure warning reset switch

DTC check cannot be done using SST check wire

TC and CG terminal circuit

ECU power source circuit

Tire position not identified*

Tire pressure warning valve and transmitter

Main body ECU (Multiplex network body ECU)

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  • *: w/ Tire Inflation Pressure Display Function
Registration
REGISTRATION PROCEDURE 1. BEFORE REGISTRATION NOTICE: The transmitter ID is written on the tire pressure warning valve and transmitter. It is not possible to read the transmitter ID after instal ...

Terminals Of Ecu
TERMINALS OF ECU 1. CHECK TIRE PRESSURE WARNING ECU AND RECEIVER (a) Disconnect the T14 tire pressure warning ECU and receiver connector and measure the voltage and resistance on the wire harness ...

Other materials:

Diagnosis System
DIAGNOSIS SYSTEM 1. DESCRIPTION The 4 wheel drive control ECU records DTCs when the ECU detects a malfunction in the ECU itself or in system circuits. The DTCs can be read through the DLC3 of the vehicle. When the system seems to be malfunctioning, use the Techstream to check for malfunctions ...

Disassembly
DISASSEMBLY PROCEDURE 1. REMOVE KNUCKLE GREASE RETAINER CAP (for 2WD) (a) Using a screwdriver and hammer, remove the knuckle grease retainer cap. 2. REMOVE FRONT AXLE HUB OIL SEAL (for 4WD) (a) Using a screwdriver and hammer, remove the front axle hub oil seal. 3. REMOVE FRONT WHEEL ADJUST ...

SRS Warning Light Remains ON
DESCRIPTION The SRS warning light is located on the combination meter assembly. When the SRS condition is normal, the SRS warning light illuminates for approximately 6 seconds after the ignition switch is turned from off to ON, and then turns off automatically. If there is a malfunction in th ...

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