New Beetle L4-1.9L DSL Turbo (BEW) (2006)
EGR Electronic Vacuum Regulator Solenoid: Testing and Inspection
EGR Vacuum Regulator Valve, Checking
EGR Vacuum Regulator Valve, Checking
Special tools, testers and auxiliary items required
‹› Multimeter.
‹› Wiring diagram.
Test requirements
‹› Fuse (on fuse panel) (S234) OK.
‹› The ignition switched off.
‹› Voltage for the EGR Vacuum Regulator Valve (N121 ) is supplied by the Power Supply Relay (terminal 30, B+) (J317).
Test procedure
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Perform a preliminary check to verify the customers complaint. Refer to => [ Preliminary Check ] See: Computers and Control Systems/Testing
and Inspection/Scan Tool Testing and Procedures/Preliminary Check.
Start diagnosis
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Disconnect the EGR Vacuum Regulator Valve (N121 ) electrical harness connector.
Checking internal resistance
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Using a Multimeter, check the EGR Vacuum Regulator Valve (N121) terminals 1 and 2 for resistance.
Specified value: 14 to 18 ohms.
If the specified value is not obtained:
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Replace the EGR Vacuum Regulator Solenoid Valve ( N18).
If the specification is obtained:
Checking voltage
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Switch the ignition on.
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Using a Multimeter, check the EGR Vacuum Regulator Valve (N121) electrical harness connector terminal 1 to Ground (GND) for voltage.