The Equus 3022 displays I/M (Inspection and Maintenance) Readiness Monitors. These indicators show whether all emissions components have been tested and verified by the vehicle's computer.
Plug the single jumper wire of the tester into the vehicle's small STI test plug. Ensure all connections are tight and secure. Step 3: Running the Test (Key On Engine Off - KOEO)
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Connects the tool to the vehicle’s Data Link Connector (DLC). Step-by-Step Diagnostic Procedures
: Always wear ANSI-approved safety goggles and heavy-duty work gloves. The Equus 3022 displays I/M (Inspection and Maintenance)
Safety glasses guard against debris, battery acid, and moving parts.
The Equus 3022 has received mixed but generally positive feedback from users across various regions. Many DIY users find it effective for routine battery checks. One reviewer in Australia noted that the tester “Works well. Have used it on multiple vehicles only on basic checks but it gave readings consistent with the life of the installed battery”. A Japanese user reported that after a dealership recommended battery replacement, their Equus 3022 diagnosed the battery as “PERFECT,” saving them the cost of an unnecessary replacement. Ensure all connections are tight and secure
With the tool linked and ignition ON, press the button.
: Clean battery terminals before testing. Corrosion can cause poor contact, leading to inaccurate readings or sparks.
High resistance in the starter circuit, a failing starter motor, or a weak battery. Maintenance and Troubleshooting
Ensure the vehicle's engine is off and the battery is completely disconnected to avoid blowing the analyzer's internal fuses.