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:

ECU Power Source Circuit
WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before performing the following inspection procedure. PROCEDURE 1. INSPECT BATTERY (a) Check the battery voltage. Standard voltage: 11 to 14 V NG ...

Parts Location
PARTS LOCATION ILLUSTRATION *1 SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) *2 THROTTLE BODY WITH MOTOR ASSEMBLY *3 PARK/NEUTRAL POSITION SWITCH *4 VSC OFF SWITCH *5 MILLIMETER ...

Theft Deterrent System Communication Line High Fixation (B279A,B279A12)
DESCRIPTION If the communication line (EFIO-IMI) to the transponder key ECU assembly is stuck high (e.g. shorted to +B), the ECM stores this DTC. DTC No. DTC Detection Condition Trouble Area DTC Output Confirmation Operation B279A*1 ...

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