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Software Focus: Efficient Diagnostics

Tomorrow's Technician

This truck is in with a check engine light and reduced power complaint. The first thing that pops up on the screen is the Auto-ID function that uses Mode $09 data to identify the vehicle using the VIN. This saves you time inputting the make, model and year and trying to determine the engine or trim code.

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Software Focus: Efficient Diagnostics

Brake & Front End

This truck is in with a check engine light and reduced power complaint. The first thing that pops up on the screen is the Auto-ID function that uses Mode $09 data to identify the vehicle using the VIN. This saves you time inputting the make, model and year and trying to determine the engine or trim code.

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Freeze Frame Diagnostics

Tomorrow's Technician

As time passed, even large trucks and motorcycles adopted this same method to test the emissions status of a vehicle. In general, the newer the vehicle, the greater number of PIDs in a freeze frame. These PIDs focus on the how the engine burns fuel and manages emissions. The freeze frame is not updated with current values.

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P0157 Code – Oxygen Sensor Circuit Low Voltage Guide

RepairSmith

Definition of Diagnostic Trouble Code (DTC) P0157 Diagnostic Trouble Code (DTC) P0157 stands for “Oxygen Sensor Circuit Low Voltage (Bank 2, Sensor 2).” ” This code appears when the downstream oxygen sensor on Bank 2 shows a low voltage signal for too long.

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What Does Code P0158 Mean?

RepairSmith

Definition of OBD-II trouble code P0158: The P0158 code stands for “O2 Sensor Circuit High Voltage (Bank 2, Sensor 2).” ” It shows that the powertrain control module (PCM) detects a high voltage signal from the oxygen sensor located in Bank 2, Sensor 2. Rough Idle : The engine might run unevenly.

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PCV System DTC

Tomorrow's Technician

A customer may bring their vehicle to you with a complaint of an illuminated check engine light, reduced fuel economy, a strong smell of engine oil while the engine is running, etc. A small amount of moisture inside the crankcase can turn into ice once the engine cools down.

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Throttle-By-Wire Diagnostics

Tomorrow's Technician

It was first used on a German V12 to synchronize the two banks of cylinders with two throttle bodies. Over the past 20 years, throttle-by-wire has become the standard technology on all gasoline engines. But, this can add a new wrinkle to diagnostics and communication on the vehicle. Throttle by wire was once a mystery.