Audi Workshop Service and Repair Manuals

• ‒ Connect the vehicle diagnostic, testing and information system VAS 5051 to the vehicle's 16-pin diagnostic socket using the diagnostic cable VAS 5051/1, with ignition switched off and select the control unit of the additional heater -J162 using "address word" 18.

→ Display on VAS 5051:

• ‒ Select function "02 - Interrogate fault memory".

→ Display on VAS 5051:

• ◆ The number of faults stored appears in display zone -1-.
• ◆ The fault code, the fault location and the type of fault stored appear in display zone -2-.

Notes:

• ◆ By pressing the ←key you will return to the selection program.

• ◆ If a fault was detected:
• ‒ 1. Rectify fault.
• ‒ 2. Interrogate fault memory (function 02).
• ‒ 3. Erase fault memory (function 05).
• ‒ 4. Check code (function 01) or encode control unit (function 07).
• ‒ 5. End output (function 06).

• ◆ If no fault was detected but the additional heater is not working properly (e.g. additional heater does not start, insufficient heat output):
• ‒ 1. Read measured value block (function 08).
• ‒ 2. Perform final control diagnosis (function 03)=> Page 01-41.
• ‒ 3. Check additional heater function .

Notes:

• ◆ As of model year 2001 additional heaters with a -J162 heater control unit and a software version starting from "D50" are used.
• ◆ If on additional heaters with a -J162 heater control unit and a software version as of "D50", the additional heater does not begin to operate if contact "3" of the 6-pin connector is connected to earth (additional heater actuation) check the adaption in the -J162 control unit adaption channel "10" and correct it as necessary .

• ‒ On control units with software version "D50" or "D51" only the adaption "0" must have been entered.
• ‒ On control units as of software version "D50" the adaption "0" or "2" must have been entered.

→ Display on VAS 5051:

• ‒ End output (function 06) .
• ‒ Switch off ignition and detach diagnostic connector.