Jetta L5-2.5L (BGP) (2006)
Main Relay (Computer/Fuel System): Testing and Inspection
Power Supply Relay (Terminal 15) J329, Checking
Power Supply Relay (terminal 15) J329, Checking
Special tools, testers and auxiliary items required
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Multimeter.
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wiring diagrams.
Test requirements
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The Ground (GND) connections at the engine and transmission OK.
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The battery voltage at least 12.5 V.
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The generator OK.
Test procedure
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Perform a preliminary check to verify the customers complaint.
Start diagnosis
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Using a Multimeter, check the following wiring connection for voltage.
Power Supply Relay
Measure to
(terminal 15) J329
socket
1/30
Engine Ground (GND)
Specified value: 12.5 V
If the specified value was not obtained:
-
Check the Power Supply Relay (terminal 15) J329 socket 1/30 to Battery A (+) for an open circuit or short to Ground (GND).
-
Check the electrical harness connectors for damage, corrosion, loose or broken terminals.
-
If necessary, repair the wiring connection.
If no malfunctions are found in the wiring:
-
Using a Multimeter, check the following wiring connection for voltage.
Power Supply Relay
Measure to
(terminal 15) J329
socket
3/86
Engine Ground (GND)
Specified value: 12.5 V
If the specified value was not obtained:
-
Check the Power Supply Relay (terminal 15) J329 socket 3/86 to the Generator (GEN) C terminal "L" for an open circuit or short to Ground
(GND).
-
Check the electrical harness connectors for damage, corrosion, loose or broken terminals.
-
If necessary, repair the wiring connection.
If no malfunctions are found in the wiring:
-
Using a Multimeter, check the following wiring connection for voltage.
Power Supply Relay
Measure to
(terminal 15) J329
socket
5/D
Engine Ground (GND)
Specified value: 12.5 V
If the specified value was not obtained:
-
Check the Power Supply Relay (terminal 15) J329 socket 5/D to the Generator (GEN) C terminal "L" for an open circuit or short to Ground
(GND).
-
Check the electrical harness connectors for damage, corrosion, loose or broken terminals.
-
If necessary, repair the wiring connection.
If no malfunctions are found in the wiring:
