MX-5 Miata LS L4-1.8L DOHC (2001)
Alarm Module: Specifications
IMMOBILIZER UNIT INSPECTION
1. Measure the voltage at the immobilizer unit terminals as indicated below.
2. Disconnect the immobilizer unit connector before inspecting for continuity at terminal C.
If not as specified, inspect the parts listed under "Action".
If the parts and wiring harnesses are okay but the system still does not work properly, replace the immobilizer unit.
Terminal A - N
Terminal Voltage Table (reference)