If you plug the Equus 3022 into the OBD2 port without turning the ignition on, the device will not power up. However, if you quickly press and hold the “LINK” button while the ignition is off, the unit will draw residual power and display battery voltage on the screen for two seconds. This is an undocumented way to test your car battery without opening the hood.
Attach the black negative (–) clamp to a clean, unpainted metal surface on the chassis. Equus-3022-Manual.pdf
Since finding the exact manual is a challenge, here is a general guide on how to use a basic OBD-II scan tool. The procedure for the 3022 is likely to follow these steps closely. If you plug the Equus 3022 into the
Patented clip-on inductive pickup that clamps directly over the spark plug wire, eliminating the need to pierce insulation. Attach the black negative (–) clamp to a
The Equus 3022 outputs standard five-character alphanumeric codes. The manual breaks down the standard code structure as follows:
The internet is full of spam, fake download buttons, and outdated forums. To find a legitimate, virus-free copy of the , follow these verified methods: