AutoCodes - Generic - U1178

U1178 Code - Invalid or Missing Data For Climate Control

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
Table of contents

|U1178 code possible causes

  • Faulty Heating, Ventilation, and Air-Conditioning (HVAC) Module
  • Heating, Ventilation, and Air-Conditioning (HVAC) Module harness is open or shorted
  • Heating, Ventilation, and Air-Conditioning (HVAC) Module circuit poor electrical connection

|How do I fix the U1178 code?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|Cost of diagnosing the U1178 code

Labor: 1.0

The cost of diagnosing the U1178 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are U1178 code possible symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|U1178 code description

The Powertrain Control Module (PCM) monitors the Heating, Ventilation, and Air-Conditioning (HVAC) Module. The PCM sets the OBDII code when the HVAC Module is not to factory specifications.
OBDII Code U1178 - Invalid or Missing Data For Climate Control - AutoCodes.com

|Need more information with the U1178 code?

Need more information on how to fix the U1178 code? Get Access to Factory Service Manuals

|U1178 code information for specific makes

|Need help with a U1178 code?

Get the U1178 code diagnosed by a professional: Find a repair shop in your area

|U1178 code comments

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Repair Importance Level: 3
 
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