| t
| In the event of a fault concerning the control motor sequence (two or more connectors or control motors interchanged on installation): |
| –
| These control motors will be incorrectly matched in the basic setting function and the flaps will not be actuated properly (incorrect assignment). |
| –
| Depending on the adjustment range for this control motor, an incorrect end stop will be detected during basic setting and stored as a fault in the event recorder and basic setting will be terminated. |
| –
| The wrong flaps will be moved and the air outflow direction will be incorrect. This is not always detected as a fault depending on the adjustment range of the control motor. All connectors should therefore always be marked before unplugging and basic setting performed after plugging in again. |
| t
| Faults occurring during normal air conditioner operation may lead to the following event recorder entries depending on the type of fault: |
| –
| In the event of a fault in the positive or earth connection to a control motor, this control motor can no longer exchange information with the air conditioner operating and display unit, Climatronic control unit -J255- and the corresponding control motor is stored in the event recorder. |
| –
| In the event of a fault in the signal wire to a control motor (e.g. open circuit in connector to contact „2“ of control motor -B-), this control motor and all the control motors (-C- to -N-) series-connected downstream of this control motor can no longer exchange information with the air conditioner operating and display unit, Climatronic control unit -J255- and the corresponding control motor as well as those connected downstream of it are stored in the event recorder. |
| –
| In the event of a fault in the electronics of a control motor (e.g. in control motor -B-), control motor -B- may, depending on the type of fault, still be able to exchange information with the air conditioner operating and display unit, Climatronic control unit -J255-, but all control motors (-C- to -N-) connected downstream of this control motor are stored in the event recorder. |
| t
| Faults occurring during air conditioner basic setting may lead to the following event recorder entries depending on the type of fault: |
| –
| In the event of a fault in the positive or earth connection to a control motor (e.g. control motor -B-), this control motor cannot exchange information with the air conditioner operating and display unit, Climatronic control unit -J255- and is thus not recognised during basic setting. As all control motors are re-assigned and re-matched during the basic setting function starting from the last control motor -N-, this control motor is missing in the series. The air conditioner operating and display unit, Climatronic control unit -J255- recognises that a control motor is missing and stores the first control motor in the series circuit as being missing (e.g. on left-hand drive vehicles with an air conditioner of „Deluxe“ type, the left temperature flap control motor -V158-). In addition, the fault „Automatic addressing not OK“ is displayed and with certain control motors possibly „Upper or lower limit value exceeded“. |
| –
| In the event of a fault in the signal wire to a control motor (e.g. open circuit in connector to contact „2“ of control motor -C-), this control motor and all the control motors series-connected downstream of this control motor can no longer exchange information with the air conditioner operating and display unit, Climatronic control unit -J255- and these control motors are thus not recognised during basic setting. As all control motors are re-assigned and re-matched during the basic setting function starting from the last control motor -N-, these control motors are missing in the series. The air conditioner operating and display unit, Climatronic control unit -J255- recognises that several control motors are missing (only control motors -B--A- are recognised and incorrectly assigned and matched as being the air flow flap control motor -V71- and the air recirculation flap control motor -V113-). All other control motors (e.g. on left-hand drive vehicles with an air conditioner of „Deluxe“ type from the right footwell flap control motor -V109- to the left temperature flap control motor -V158-) are stored as missing in the event recorder and the fault „Automatic addressing not OK“ is displayed. |
| –
| In the event of a fault in the electronics of a control motor or if a fault occurs during basic setting (e.g. in control motor -C-), this control motor may, depending on the type of fault, still be able to exchange information with the air conditioner operating and display unit, Climatronic control unit -J255-, but is no longer able to exchange data with all the control motors (as far as control motor -N-) connected downstream of it. The air conditioner operating and display unit, Climatronic control unit -J255- recognises that several control motors are missing (only control motors -C- to -A- are incorrectly assigned and matched as being the air recirculation flap control motor -V113-, the air flow flap control motor -V71- and the right footwell flap control motor -V109-). All other control motors (e.g. on left-hand drive vehicles with an air conditioner of „Deluxe“ type from the right centre vent control motor -V111- to the left temperature flap control motor -V158-) are stored as missing in the event recorder and the fault „Automatic addressing not OK“ is displayed. |
|
|
|
Note
