wires and connectors Archives - UnderhoodService
Jump Starting an EV

If an EV with a full battery won’t start, here’s how you can get it up and running.

Diagnosing Misfires

What if there are no codes and a misfire is intermittent? This is where it gets complicated.

Diagnostic Procedures For Stop/Start Systems

Stop/start technology is more than just a switch wired to the brake pedal and starter.

OBDII Connectors

OBDII connectors serve as the main communication point between the technician and the vehicle.

ECM Damage

Engineers have devised two strategies that can be called the “immune system” for the electrical system.

PCV System DTC

PCV systems are far more complex now, but they are also much better at controlling crankcase pressure.

Ignition Coil Output

To see inductance inside the primary windings, use an amp probe placed around the positive wire for the ignition coil.

Channellock Introduces New Forged Wire Stripper

The tool requires considerably less force to cut than traditional high leverage designs, reducing hand fatigue.

Piercing And Probing Wires With The Least Damage Possible

The Hippocratic Oath states a doctor shall “do no harm.” The technician’s oath is the same, but we “do no harm” to a vehicle we are trying to diagnose or repair.