Control Unit (Harness Testing)

Start engine and run for 10 seconds. Disconnect control unit harness connectors from control unit. Check voltage or resistance at control unit harness connector terminals referring to table. See Fig 1 .

CAUTION: Always disconnect negative battery cable when checking resistance at control unit terminals.

Fig 1: Testing Specifications Table for Control Unit Harness Connectors

Courtesy of MAZDA MOTORS CORP.