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Home >> Dodge and Ram >> 1994 >> Caravan Base, 3.0 3 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing - 3.8L >> Fuel System >> Fuel Pump Relay
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Fuel Pump Relay

NOTE: If fuel pump relay is suspected of causing a fuel or ignition system malfunction, use Diagnostic Readout Box (DRB) to diagnose pump relay. See TESTS W/CODES - 3.8L article in the ENGINE PERFORMANCE section.

Fuel pump relay is controlled by PCM through the same ground circuit as ASD relay or through ASD relay. When PCM turns ASD relay ground circuit off, fuel pump relay ground circuit is also turned off. See AUTO SHUTDOWN (ASD) RELAY.

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