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| Unplug connector -A- from fresh air blower control unit -J126--B-. |
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| Measure voltage between contact -4- and contact -3- at connector -A-. |
| Specification: approx. battery voltage |
Note | t
| If the voltage is below battery voltage, use current flow diagram to repair power supply/earth connection. |
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| On vehicles with “sun roof with solar cells” as optional extra, the voltage generated by the sun roof solar cells is applied to contact -6- of the connector -A- when the sun roof is closed. |
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| The fresh air blower control unit -J126- is constantly monitored by the operating and display unit, Climatronic control unit -J255-. Any faults occurring are stored in the fault memory. The current status of the fresh air blower -V2- is displayed in the measured value block (display group “018”) → Chapter. |
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