volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Relays and Modules - Power and Ground Distribution > < Instrument Cluster - Functions Erratically
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Remove battery tray.

Locate ground studs -A-.

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Check ground connections at studs, terminals must be:

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Tight

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Free of corrosion

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Securely crimped to wires 

If terminals are loose on the stud:

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Torque cap nut to 7.5 Nm (66 in. lb). 

Check that terminals are tight.

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Reinstall battery tray.

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Reinstall battery.

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Re-connect battery positive (B+) cable.

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Re-connect battery ground cable.

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Re-code radio and re-program customers preset radio stations.

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Connect VAG 1551 and erase any stored Diagnostic Trouble Codes.

When procedure applies to vehicles within warranty use the following:

Part Identifier: 

9798

Labor Operation:  9798510    35TU

Relays and Modules - Power and Ground Distribution > < Instrument Cluster - Functions Erratically