Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

B+ Latch Relay

Relay Location/Identification:





When the ignition switch is in the START or ON position, the Engine Control Unit (ECU) ENERGIZES the B+ (power) relay. The relay provides voltage to the idle speed regulator in preparation for engine start-up. The relay is located on the left strut tower. The exact location of the relay is imprinted on the relay cover.