Vanagon F4-1915cc 1.9L (Water Cooled) (1983)
Fuel Pump Relay: Testing and Inspection
Checking Relays, with relays installed
CAUTION: Do not connect any test light to terminal 86 of adaptor C (shown in illustration) if control unit is connected
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Remove all electrical plugs at fuel injectors
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Turn ignition ON
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Connect test light to ground and check following terminals for voltage:
Connection A = red wire terminal 30
Adaptor B = terminals 30, 85, 87
Adaptor C = terminals 30 and 85
Test light should light
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Operate starter and check with test light
Adaptor C = Terminal 87
Test light should light
If test light does not light, check wiring by using current flow diagram
If wiring is OK and no voltage at terminal 87, check relay
If relay is OK, replace control unit
Checking Relay on adaptor B
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Turn ignition ON
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Connect test light to terminals 30 and 86
Test light must light up
If NO, check wiring with current flow diagram
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Connect test light to terminals 86 and 87
Test light must light up
If NO, replace relay on adaptor B
Checking Relay on adaptor C
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Connect test light between terminals 30 and 86
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Crank engine
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Test light must light
If NO, check wire to terminal 20 of control unit
If wiring is OK, replace control unit
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Connect test light to terminal 87 and ground
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Crank engine
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Test light must light
If NO, replace relay on adapter C