Auto Diagnostics and Codes
AAPEX 2021 Announces Repair Shop HQ Training Schedule

All sessions will take place in four new training theaters and are accredited toward AAP and MAAP designations.

Power Steering Pump Noise After Replacement

Brake and carburetor cleaners work well, but will cause seals and O-rings to swell and leak if left in the system.

How Battery Service Continues To Change

Your attention to a battery’s condition will tell you if it needs to be replaced – and with what.

Testing A/C Or Heater Blower Motor Circuits

The heat eventually burns out the blower motor resistor, and, in many cases, causes the electrical connector to melt.

Chrysler EPS Module Connector Security

During EPS module electrical diagnosis and verification, DO NOT disconnect the gray EPS torque sensor connector.

Ford Clock Master Diagnostics

The clock master is the master module responsible for keeping time and broadcasting this information to the slave module(s).

Acura Tech Tip: Engine Shuts Off, But Power Mode Stays In On

When you shift into Park and use the One-Push button to shut off the engine, does the power mode stay in ON?

Staying Current

The wide variety of relay configurations, applications and uses can make selection difficult.

Freeze Frame Diagnostics

Freeze frame data is a “snap shot” of when the code occurs of the specific sensor PIDs.

Belt Alignment Measurement

The first point of inspection is the belt. Listen for the most common noise: a chirping noise.

Scan Tool Triage

New scan tools can bridge the divide between a basic scan and high end scan tool.

Nissan Tech Tip: Vehicle Key Not Detected

Nissan keys use radio frequencies (RF) similar to other everyday wireless devices.