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Compressor Speed Sensor, HVAC > < How to Find Wiring Diagrams|Page 11669
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4. Not used

Version "2"

-

Disconnect connector - A - from Air Quality Sensor G238.

-

Release catch - B - and slide Air Quality Sensor G238 -C - downwards.

Terminal assignment in connector - A -

1. B+ (terminal "15")
2. Negative (terminal "31")
3. Signal wire to operating and display module, Climatronic Control Module J255 (square-wave signal cannot be measured)

Compressor Speed Sensor, HVAC > < How to Find Wiring Diagrams|Page 11669