Automatic Climate Control System, Electrical Check

Automatic Climate Control System, Electrical Check

NOTE:
- The "Electrical check" function is not described in this Repair Manual. When implementing electrical check by way of the "Guided Fault Finding" function, information is given on the functions to be checked.
- The temperature-sensitive resistance values for the various temperature sensors are listed in a table which can be called up via the "Guided Fault Finding" function.

Wiring and component check using test box V.A.G 1598 A

Special tools, testers and other items required
- Test box V.A.G 1598/19 (for Climatronic Control Module -J255-)
- Test box V.A.G 1598/45 (for Rear A/C Control Head (Climatronic) -E265-)
- Vehicle diagnostic, testing and information system VAS 5051 with Multimeter leads VAS 5051/7, DSO measuring leads 1 & 2 VAS 5051/8, Inductive pickup (50 Amp) VAS 5051/9
- Voltage tester V.A.G 1527 B
- Adapter set V.A.G 1594 A
- Temperature measuring instrument
- Wiring diagram for vehicle system to be checked

NOTE:
- Test box V.A.G 1598/45 for Rear A/C Control Head (Climatronic) -E265- connector
- Electrical check is to be performed as described in Guided Fault Finding.