Nissan and Datsun Workshop Service and Repair Manuals

Fuel Pump Relay: Mechanical Specifications

AIV Solenoid

Energized .............................................................................................................................................................................  at all engine temperatures [1]
Energized  ...........................................................................................................................  engine temperature between 15° C (59° F) & 60° C (140° F)
Energized  ...........................................................................................................................................................  engine temperature over 70° C (158° F)

EGR Solenoid

Energized ..........................................................................................................................................................  engine temperature below 60° C (140° F)
Energized ....................................................................................................................................................................................  engine rpm less than 800
Energized ................................................................................................................................................................................  engine rpm more than 5200
Energized ..............................................................................................................................................................  vehicle speed below 11 mph (18 km/h)

Fuel Pump Relay

Energized .......................................................................................................................................................................................  whenever key is on [2]

Mixture Heater And Relay

Engine running

Energized ........................................................................................................................................................  engine temperature below 50° C (122° F)
De-energized  .................................................................................................................................  after engine temperature exceeds 50° C (122° F) [3]

[1] During deceleration only.
[2] Only for 5 seconds if engine is not started.
[3] Turns off after several minutes.