Showing posts from September, 2025

Electrical System Basics

Electrical System Introduction Electricity is used to perform a vast number of procedures and operations. For instance, an automobile’s electrical system operates the starter motor to crank the engine; it makes the sparks that ignite the compressed a…

Engine Electrical

Engine Electrical Introduction The engine is the power source of a vehicle. It burns the mixture of fuel (gasoline) and air and converts its heat energy into the mechanical energy. The air-fuel mixture is first compressed in the engine and then igni…

DTC B0020-12: Short to Power in the Left Side Airbag Inflator

Overview DTC B0020-12 If a voltage on the detection line inside the SRS unit is higher than a specified value, the SRS unit determines an abnormality and stores the DTC Inspection Outline The components to be tested are indicated by a dotted line. Ins…

DTC B0020-11: Short to Ground in the Left Side Airbag Inflator

DTC B0020-11 Overview If a current (or voltage) on the detection line inside the SRS unit is higher than a specified value, the SRS unit determines an abnormality and stores the DTC . Inspection Outline The components to be tested are indicated by a d…

How to Change a Car Water Pump

Water Pump Replacement Overview The water pump used by Honda is an impeller type and is driven by the timing belt. The pump’s casing consists of the cylinder block and the pump cover. The shape of the water pump differs from one engine to another, bu…

How to Diagnose SRS System

System Indicator SRS Indicator When the SRS detects a problem, the SRS indicator comes on. NOTE: If the system is OK, the SRS indicator should come on when you turn the vehicle to the ON mode, and turns off 6 seconds later. If it does not, there is …

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