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Home/DTC Codes/Chevrolet/Spark EV/2014-2016 Electric Motor/U0165
U0165

Lost Communication with Rear HVAC Control Module

2014-2016 Chevrolet Spark EV Electric Motor

Low SeverityNetworkGeneric (SAE)

Description

Cannot communicate with the rear climate control zone module.

Symptoms

  • Rear A/C not working
  • Rear climate controls unresponsive
  • No rear heat
  • Rear blower not running

Common Causes

  • Rear HVAC module failure
  • CAN bus wiring
  • Module power loss
  • Fuse blown
  • Rear blower motor issue

Diagnostic Steps

  1. Check rear HVAC module fuse
  2. Test power and ground
  3. Check CAN wiring
  4. Test rear blower motor
  5. Inspect rear climate control panel

Repair Notes

Check fuses for rear HVAC system. Rear module wiring runs through pillars.

Related Codes

U0164Lost Communication with HVAC Control Module

Other Network Codes

U0165 on Other Vehicles

Chevrolet Astro

1995-2005 4.3L V6 Vortec

Chevrolet Avalanche

2002-2006 5.3L V8 Vortec

Chevrolet Avalanche

2002-2006 8.1L V8 Vortec

Chevrolet Avalanche

2007-2013 5.3L V8 Vortec

Chevrolet Avalanche

2007-2013 6.0L V8 Vortec

Chevrolet Aveo

2012-2018 1.6L I4

Chevrolet Beat

2018-2021 1.2L I4

Chevrolet Beretta

1990-1996 2.2L I4

Common Questions

What does code U0165 mean on a 2014-2016 Chevrolet Spark EV?

U0165 stands for "Lost Communication with Rear HVAC Control Module". Cannot communicate with the rear climate control zone module.

What are the symptoms of U0165 on a Chevrolet Spark EV?

Common symptoms of U0165 include: Rear A/C not working, Rear climate controls unresponsive, No rear heat, Rear blower not running.

What causes U0165 on a 2014-2016 Chevrolet Spark EV?

Common causes of U0165 include: Rear HVAC module failure, CAN bus wiring, Module power loss, Fuse blown, Rear blower motor issue.

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