What does fault code 22 in ACC panel display mean?
9-3 (9400), model year 1998-2003, ACC (automatic climate control)
What does fault code 22 in ACC panel display mean?
DTC 22 in ACC display = B1600 in Tech 2. Stands for “Can Bus Data Error”.
Can be set when battery has been disconnected or some important part like DICE has been disconnected.
This fault normally disappears after calibration. If the code is still present, it will normally not cause any problem or bad function.
When the fan control is replaced it is important that silicon paste is applied, according to WIS instruction.
If this is missed, it could be a reason for repeated problems.