Test No. 6

Turn on headlights. If headlights do not illuminate, repair headlight circuit. If headlights illuminate, turn off headlights. Measure voltage at terminal 2H (White/Blue wire) of CPU No. 2 8-pin connector. SeeFig 1 . If battery voltage is not present, repair wiring between headlight relay and CPU No. 2. If battery voltage is present, replace CPU No. 2.

Fig 1: Identifying CPU No. 2 Connector Terminals (8-Pin)

Courtesy of MAZDA MOTORS CORP.