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2015 AUDI Q7
3.0L Supercharged V6 (TFSI, 280 hp)•AWD•AUTOMATIC•gas•CJTC
2 active safety recalls on this vehicle — view recalls
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Repairs0Labor487Torque2170Fluid10DTC1133Battery1Maintenance0Recalls2
U0164low severityNetwork

Lost Communication with HVAC Control Module

on 2015 Audi Q7 3.0L Supercharged V6 (TFSI, 280 hp) · AWD

What this code means

Cannot communicate with the climate control module.

Symptoms

  • Climate control not working
  • No A/C
  • Fan not responding

Common causes

  • HVAC module failure
  • Fuse
  • CAN bus
  • Wiring

Diagnostic steps

  1. Check fuses
  2. Test power
  3. Check CAN wiring

Repair notes

Check fuses and power supply.

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