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Home >> Volvo >> 1993 >> 960 4D Sedan, AW30-40 >> Repair and Diagnosis >> External Pages >> Different car >> Section 7 (Engine Controls - Basic Testing) >> Fuel System >> Fuel Pump Circuit
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Fuel Pump Circuit

WARNING: This page is about a different car, the 1993 Volvo 940. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove fuel injection system relay. Check voltage at terminal No. 30. See Figure and Figure . If battery voltage does not exist, repair wiring between relay connector and battery.
  2. Connect jumper wire between terminals No. 30 and 87/2 of fuel injection system relay connector. Fuel pump should run. If fuel pump does not run, check wiring between pump and relay. Also check wiring between terminals No. 87/1 and 85 for continuity. Repair as necessary.
NOTE: ECU terminal identifications are marked on unit or connector.
CAUTION: Ignition must be off when connecting or disconnecting ECU connector.
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