Checking Ground Points

Checking ground point







- Ignition off.
- Control unit disconnected.
- Switch off all battery loads such as entrance lights and radio.

Connect an ohmmeter between the battery negative terminal and # 3 on the test box.

The ohmmeter should display approximately 0 [ohm].

Ok - Initial Inspection and Diagnostic Overview

Not Ok - Checking For Open Circuits, Contact Resistance and Oxidation