Immobilizer Unit Inspection

WARNING: This page is about a different car, the 2002 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.

Measure the voltage at the immobilizer unit terminals as indicated below.
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.

Fig 1: Identifying Immobilizer Unit Connector Terminals

Courtesy of MAZDA MOTORS CORP.

Fig 2: Terminal Voltage Table (Immobilizer Unit)

Courtesy of MAZDA MOTORS CORP.