Rear AC (blower) working intermittently

[Stella87]

My rear AC blower has worked inconsistently since I bought the van two years ago. Sometimes itll work for a long time, then cut out for awhile, and lately it hasn't been working much at all but will occasionally randomly turn on. Where would one begin in diagnosing this? Ive read that there is s relay for the rear by the steering column to check first. is this true? Also, does the rear run off the ac compressor only if the front ac is on? Thanks guys, I searched quite a bit amongst delica.ca, delicaclub.com, and mdocuk and couldn't find good info.

[sk66]

If your rear AC controls are in the side wall I believe the rear system is just an extension of the front system with separate condenser/blower... I.e. the AC compressor must be enabled/turned on from the front.

Yes, there is a relay. But my guess is this symptom is directly related to the low refrigerant/leak issue you are having rather than the rear system in particular.