Engine-Codes - GMC - P101D GMC

P101D GMC Code - Glow Plug Control Module Temperature Sensor 3 Circuit Low Voltage

- Code Popularity: 120 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the Code P101D GMC?

  • Faulty Glow Plug Control Module (GPCM)
  • Glow Plug Control Module harness is open or shorted
  • Glow Plug Control Module circuit poor electrical connection

|How to Fix the P101D GMC Code?

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 Code P101D GMC?

Labor: 1.0

The cost to diagnose the P101D 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.

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|What are Code P101D GMC Possible Symptoms?

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

|What Does the P101D GMC Code Mean?

The Glow Plug Control Module (GPCM) has the ability to perform internal diagnostics for the temperature sensor circuit. The GPCM monitors the internal temperature sensor voltage and if the voltage is less than 0.21 V or greater than 4.94 V. The GPCM will send a message to the Engine Control Module (ECM) to set the appropriate Diagnostic Trouble Code (DTC). A DTC is detected when one of the GPCM temperature sensors voltage falls outside the calibrated threshold for greater than 1.3 s.

P101D GMC Code - Glow Plug Control Module Temperature Sensor 3 Circuit Low Voltage

|Need more Information on the P101D GMC Code?

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|Need Help with the P101D GMC Code?

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