Fuel Pump Relay: Inspection

REMOVE RELAY BOX COVER
REMOVE FUEL PUMP RELAY (Marking: F/P)

Fig 1: Removing Fuel Pump Relay
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT FUEL PUMP RELAY CONTINUITY
1. Using an ohmmeter, check that there is continuity between terminals 1 and 2.
  If there is no continuity, replace the relay.
2. Check that there is continuity between terminals 3 and 4.
If there is no continuity, replace the relay.

Fig 2: Checking Continuity Between Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT FUEL PUMP RELAY OPERATION
1. Apply battery positive voltage across terminals 1 and 2.
2. Using an ohmmeter, check that there is no continuity between terminals 3 and 4.
If there is continuity, replace the relay.
REINSTALL FUEL PUMP RELAY
REINSTALL RELAY BOX COVER

Fig 3: Checking Continuity Between Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002