Engine-Codes - Gmc - B1263 GMC

B1263 GMC Code - Panel/Defrost Actuator Failure

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

|B1263 GMC code possible causes

  • Faulty Panel/Defrost Actuator
  • Panel/Defrost Actuator harness is open or shorted
  • Panel/Defrost Actuator circuit poor electrical connection
  • Faulty Electronic Automatic Temperature Control (EATC) Module

|How is the B1263 GMC code repair?

Start by checking 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.

|What is the cost to diagnose the B1263 GMC code

Labor: 1.0

The cost to diagnose the B1263 GMC 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 B1263 GMC code possible symptoms?

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

|What is B1263 GMC code meaning?

Under normal operation, the panel/defrost and floor door actuator motors are supplied voltage or ground through the circuit, depending on desired actuator rotation, by the Electronic Automatic Temperature Control (EATC) module. The EATC module then supplies the appropriate voltage or ground to the other side of the actuator motor. The panel/defrost and floor door actuator feedback resistors are supplied a ground and a 5-volt reference voltage from the EATC module. The EATC module reads the voltage on the circuit to determine the actuator position by the position of the actuator feedback resistor wiper arm.

|Need more information with the B1263 GMC code?

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|Need help with a B1263 GMC code?

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