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Heated Front Window -Z2-, Checking Activation



Heated Windshield Z2 , Checking Activation

Special tools and equipment
- Test Box V.A.G 1598A as well as corresponding Adapter V.A.G 1598/11 and Adapter 16 Terminals V.A.G 1598/12
- Diagnostic Operation System VAS 5051A (with Multimeter Leads VAS 5051/7 )
- Connector Test Set V.A.G 1594C
- Switch off ignition.
- Remove operating and display module, Climatronic Control Module J255.







- Connect Test Box V.A.G 1598A with appropriate Adapter V.A.G 1598/11 between connector - C - and operating and display module, Climatronic Control Module J255. Wiring and Component Check Using Test Box V.A.G 1598 A
- connect Adapter - 16 Terminals V.A.G 1598/12 between connector- D - and operating and display module, Climatronic Control Module J255 (use second Test Box V.A.G 1598A or connect measuring instrument with suitable test lead from Connector Test Set V.A.G 1594C directly to Adapter - 16 Terminals V.A.G 1598/12) Wiring and Component Check Using Test Box V.A.G 1598 A

NOTE: The terminal assignment of the connector- C - for the Adapter V.A.G 1598/11 and the connector - D -for the Adapter -16 Terminals V.A.G 1598/12 is identical to the assignment of the sockets at the Test Box V.A.G 1598A.

- Start engine.

NOTE: All connectors must be plugged in at the operating and display module, Climatronic Control Module J255.

- Measure voltage between contact "8" in connector - C - (from Heated Windshield Control Module J505 ) and contact "16" in connector - D - (Ground (GND) connection).

- Specified value: approx. Battery voltage
- If a voltage of less than 5 V is measured, the Heated Windshield Control Module J505 is currently not ready to activate the Heated Windshield or there is a short to Ground (GND) in the connection to the Heated Windshield Control Module J505. Heated Windshield Z2 , Checking Activation
- If a voltage of between 5 V and 8 V is measured, the operating and display module, Climatronic Control Module J255 is activating the Heated Windshield Control Module J505 and this has activated the Heated Windshield.
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