Sensors - OBD Spark

Sensors

Air-Fuel Ratio (A/F) and Wideband O2 Sensor: Function, Wiring, Live Data, Testing and Diagnosis

An Air-Fuel Ratio (A/F) sensor , commonly called a wideband O2 sensor , is an advanced exhaust-gas sensor used by the ECM/PCM to determine the ai…

O2 Sensor: Function, Location, Symptoms, Wiring, Voltage, Live Data, Testing and Replacement

An O2 sensor , or oxygen sensor , is an engine-management sensor that measures the amount of oxygen remaining in the exhaust gas. The ECM/PCM us…

Restraint System Sensor Module: Function, Location, CAN Network, Symptoms

The Restraint System Sensor Module is an electronic safety component used to monitor vehicle motion, acceleration, deceleration, and crash-rela…

FCS Fuel Composition Sensor: Function, Location, Symptoms, Codes and Testing

FCS commonly refers to the Fuel Composition Sensor , also known as a Flex Fuel Sensor . It is used on vehicles designed to operate with different …

FTS Fuel Temperature Sensor: Function, Location, Symptoms, Codes and Testing

FTS stands for Fuel Temperature Sensor . It measures the temperature of the fuel and sends this information to the engine control module (ECM/PCM)…

Squib – Function, Symptoms, Types, Diagnosis, and Possible DTCs

Squib – Function, Symptoms, Types, Diagnosis, and Possible DTCs The Squib is the electrical igniter inside an airbag module or seat belt pretensi…

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