Audi A4 (8K) Heating/Air Conditioning KLIMA 3 ZONEN

This page applies to Address Auto HVAC (J255) models using KLIMA 3 ZONEN in the Component field:

Address 08: Auto HVAC (J255)       Labels: 8Kx-820-043-3Z.clb
  Part No SW: 8K1 820 043 N    HW: 8K1 820 043 N
  Component: KLIMA 3 ZONEN H04 0123

Coding

• This module supports Long Coding.
• Coding information should be found using the Long Coding Helper while connected to the vehicle with VCDS.

Basic Settings

Note: Basic setting needs to be performed after HVAC motors or the AC compressor have been replaced.

Potentiometer & Flap Alignment

Necessary when flap motors are replaced -or- when a self check needs to be performed for self diagnosis of faulty motors.
[Select]
[08 - Heating/Air Conditioning]
[Basic Settings - 04]
Group 001
[Go!]
Activate the Basic Setting.
[ON/OFF/Next]
The basic setting takes approximately 40 seconds.
The module should show Performed when finished
[ON/OFF/Next]
[Done, Go Back]

Compressor Run-In

Necessary when the compressor is replaced and DTC 03023 is stored -or- when the J255 Heating/Air Conditioning control module is replaced.

The Potentiometer & Flap Alignment needs to be completed immediately after the Compressor Run-In with the engine at idle.

Prerequisites to start the basic setting A/C compressor first run:

• Engine at idle
  
• Transmission in Park or Neutral
  
• Do not cycle the ignition
  
• Basic setting was performed for the Potentiometer & Flap Alignment
  
• Inside blower motor is switched on
  
• Air vents fully open
  
• Load management not active
  

Compressor Run-In Steps:
Start engine and allow it to Idle.
Adapt flap end stops using the Potentiometer & Flap Alignment steps above.
[Basic Settings - 04]
Group 003
[Go!]
Activate the Basic Setting.
[ON/OFF/Next]
The basic setting takes approximately 120 seconds.
The module should show Performed when finished

• It will show completed, but wait 120 sec (2 Min) and observe the flashing A/C button light on the HVAC panel.
• After the Basic Settings has completed, the A/C light will quit flashing and the fault code will clear.
  

[ON/OFF/Next]
[Done, Go Back]

Replacement

Replacement of this control module may result in Component Protection DTCs such as U1101 and U1100. Component Protection can only be learned/disabled using the Factory Tool in Combination with an online Connection.