Workshop Repair Manuals

Volkswagen Workshop Manuals

[PREV PAGE] [NEXT PAGE]

volkswagen Workshop Repair Guides


Eos (1F7) V6-3.2L (BUB) (2008)

Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and Switches - Computers and Control Systems > Oxygen Sensor > Component Information > Testing and Inspection > Functions, Checking > Page 1072

Page 1
background image

Oxygen Sensor: Testing and Inspection
Positive Crankcase Ventilation Heating Element N79, Checking

Positive Crankcase Ventilation Heating Element N79, Checking

‹› Use only gold-plated terminals when servicing terminals in the electrical harness connector of Positive Crankcase Ventilation (PCV) Heating

Element (N79).

Special tools, testers and auxiliary items required

‹› Multimeter.

‹› Wiring diagram.

Test requirements

‹›  The Engine Control Module (ECM) ( J623) fuses OK.

‹›  The Power Supply Relay (terminal 50) (J682) OK.

‹› Battery voltage at least 12.5 volts.

‹› All electrical consumers such as, lights and rear window defroster, switched off.

‹› Vehicles with automatic transmission, shift selector lever into position " P" or "N".

‹› A/C switched off.

‹› Ground (GND) connections between engine/transmission/chassis OK.

‹› Ignition switched off.

‹› Engine cold.

Test procedure

-

Perform a preliminary check to verify the customers complaint. Refer to => [ Preliminary Check ] See: Powertrain Management/Computers and
Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/Preliminary Check

Start diagnosis

-

Disconnect the Positive Crankcase Ventilation (PCV) Heating Element (N79) electrical harness connector - 2 -. 

-

Using a multimeter, check the Positive Crankcase Ventilation (PCV) Heating Element (N79) terminals 1 to 2 for resistance.

Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and Switches - Computers and Control Systems > Oxygen Sensor > Component Information > Testing and Inspection > Functions, Checking > Page 1072

[PREV PAGE] [NEXT PAGE]