Toyota Tacoma (2015-2018) Service Manual: Problem Symptoms Table

Toyota Tacoma (2015-2018) Service Manual / Seat Belt / Seat Belt Warning System / 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.

Seat Belt Warning System

Symptom	Suspected Area	Link
Driver side seat belt warning light does not operate	Refer to the "Driver side seat belt warning light does not operate"
Front passenger side seat belt warning light malfunction	Refer to the "Front passenger side seat belt warning light malfunction"
Seat belt warning light does not operate for driver and front passenger seats	Combination meter assembly	-
Seat belt warning buzzer does not operate	Check customized settings using the Techstream
Seat belt warning buzzer does not operate	Combination meter assembly	-

Diagnosis System

DIAGNOSIS SYSTEM 1. CHECK DLC3 (a) Check the DLC3 (See page ). 2. INSPECT BATTERY VOLTAGE (a) Measure the battery voltage. Standard voltage: 11 to 14 V If the voltage is below 11 V, recharge ...

Terminals Of Ecu

TERMINALS OF ECU 1. CHECK COMBINATION METER ASSEMBLY (a) Measure the resistance and voltage according to the value(s) in the table below. Terminal No. (Symbol) Wiring Colo ...

Other materials:

Jam Protection Function does not Operate
DESCRIPTION This symptom may occur for any of the windows. The jam protection function operates within a specified range during the manual up or auto up operation. CAUTION / NOTICE / HINT NOTICE: If a power window regulator motor assembly has been replaced with a new one, initiali ...

Vehicle Speed Sensor "A" No Signal (P050031)
DESCRIPTION Vehicles, which are equipped with ABS (Anti-lock Brake System), detect the vehicle speed using the skid control ECU (brake actuator assembly) and speed sensors. Each speed sensor monitors the wheel rotation speed and sends a signal to the skid control ECU. The skid control ECU con ...

Precaution
PRECAUTION 1. INITIALIZATION NOTICE: If the ECM is replaced, register the ECU communication ID for Engine Immobiliser System (See page ). Perform Registration (VIN registration) when replacing the ECM (See page ). HINT: The engine learned value cannot be rese ...