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Home/DTC Codes/Cadillac/XTS/2013-2019 3.6L V6/B0660
B0660

Rear HVAC Blower Motor Circuit

2013-2019 Cadillac XTS 3.6L V6

Low SeverityBodyGeneric (SAE)

Description

Malfunction in the rear HVAC blower motor circuit for vehicles with rear climate control.

Symptoms

  • Rear blower not working
  • Rear blower only works on some speeds
  • Rear blower noisy
  • No air to rear passengers

Common Causes

  • Faulty rear blower motor
  • Rear blower resistor failure
  • Wiring damage
  • Rear HVAC control panel fault
  • Blown fuse

Diagnostic Steps

  1. Check rear blower fuse
  2. Test rear blower motor
  3. Check rear blower resistor
  4. Test rear control panel
  5. Inspect wiring

Repair Notes

Replace rear blower motor or resistor.

Related Codes

B0600Blower Motor Circuit MalfunctionB0661Rear HVAC Temperature Control Circuit

Other Body Codes

B0660 on Other Vehicles

Cadillac ATS

2013-2019 2.0L Turbo I4

Cadillac ATS

2013-2019 2.5L I4

Cadillac ATS-V

2016-2019 3.6L Twin-Turbo V6

Cadillac CT4

2020-2024 2.0L Turbo I4

Cadillac CT4

2020-2024 2.7L Turbo I4

Cadillac CT4-V

2020-2024 2.7L Turbo I4

Cadillac CT4-V Blackwing

2022-2024 3.6L Twin-Turbo V6

Cadillac CT5

2020-2024 2.0L Turbo I4

Common Questions

What does code B0660 mean on a 2013-2019 Cadillac XTS?

B0660 stands for "Rear HVAC Blower Motor Circuit". Malfunction in the rear HVAC blower motor circuit for vehicles with rear climate control.

What are the symptoms of B0660 on a Cadillac XTS?

Common symptoms of B0660 include: Rear blower not working, Rear blower only works on some speeds, Rear blower noisy, No air to rear passengers.

What causes B0660 on a 2013-2019 Cadillac XTS?

Common causes of B0660 include: Faulty rear blower motor, Rear blower resistor failure, Wiring damage, Rear HVAC control panel fault, Blown fuse.

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