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Home/DTC Codes/Nissan/Altima/2007-2012 2.5L I4/U0165
U0165

Lost Communication with Rear HVAC Control Module

2007-2012 Nissan Altima 2.5L I4

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

Nissan 200SX

1995-1998 1.6L I4 GA16DE

Nissan 200SX SE-R

1995-1998 2.0L I4 SR20DE

Nissan 240SX

1995-1998 2.4L I4 KA24DE

Nissan 300ZX

1990-1996 3.0L V6 VG30DE

Nissan 300ZX Twin Turbo

1990-1996 3.0L Twin-Turbo V6 VG30DETT

Nissan 350Z

2003-2006 3.5L V6 VQ35DE

Nissan 350Z

2007-2009 3.5L V6 VQ35HR

Nissan 370Z

2009-2020 3.7L V6 VQ37VHR

Common Questions

What does code U0165 mean on a 2007-2012 Nissan Altima?

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 Nissan Altima?

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 2007-2012 Nissan Altima?

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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