volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Relays and Modules - Ignition System > < ECM - Inoperative Due to Improper Battery Charging|Page 50
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Fuel Pump Relay: Testing and Inspection

Checking The Double Relay 

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Detach relay from firewall (do not unplug connectors)

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Check for voltage at terminals at relay by attaching one lead of test light to terminal 85 and touching other lead to following:
86a
88y
88d

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Operate starter
Test light must light up

If NO, check wire to battery or inline fuse
If wire or inline fuse OK, double relay defective and must be replaced

Relays and Modules - Ignition System > < ECM - Inoperative Due to Improper Battery Charging|Page 50