Bench Testing: Rectifier: 2.3L

WARNING: This page is about a different car, the 2004 Mazda 6 and 2003 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

Using DVOM, check diodes for continuity. See RECTIFIER DIODE CONTINUITY (2.3L) table. See Fig 1. Replace rectifier if continuity is not as specified.

RECTIFIER DIODE CONTINUITY (2.3L)

Tester Negative Probe	Tester Positive Probe	Continuity
E	P1, P2, P3 & P4	Yes
B	P1, P2, P3 & P4	No
P1, P2, P3 & P4	E	No
P1, P2, P3 & P4	B	Yes

Fig 1: Testing Rectifier Diodes (2.3L)

Courtesy of MAZDA MOTORS CORP.