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 logical successor to CHARM, I recommend you try it!

Link: lemon-manuals.la

Fuel Pump Relay Circuit Status

The scan tool displays OK, Stuck Low, which means stuck open, or Stuck High. These parameters describe the condition of the fuel pump control circuit. If a fault is detected the scan tool will list which the fault type.