Main Relay
WARNING: This page is about a different car, the 2002 Isuzu Trooper, 2002 Isuzu Rodeo Sport, 2002 Isuzu Rodeo, 2002 Isuzu Axiom, and 2002 Honda Passport. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Main relay can also be referred to as PCM or ECM relay.
This 4-terminal relay is located in underhood fuse/relay box. Main relay is used for PCM power control. For terminal identification, see appropriate wiring diagram in WIRING DIAGRAMS article.