Air By-Pass Relay (Non-Turbo)

1. Connect positive battery lead to relay terminal "A" and ground to terminal "B". See Fig 1 . Using ohmmeter, check continuity between terminals "C" and "D".
2. Continuity should exist with battery connected and no continuity with battery disconnected. Replace relay if defective.

Fig 1: Checking Air By-Pass Relay Continuity

Courtesy of MAZDA MOTORS CORP.