AutoCodes – GMC – P160C GMC

P160C GMC Code - Engine Calibration Information Not Programmed-GPCM

Quick Answer

The control functions for the fuel injection system are integrated in the Engine Control Module (ECM). Common causes include Program Injector Flow Rate in Glow Plug Control Module (GPCM). Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P160C GMC indicates Engine Calibration Information Not Programmed-GPCM .
Common causes: Common causes include Program Injector Flow Rate in Glow Plug Control Module (GPCM).
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 1,877

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jan 04, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P160C GMC Description

The control functions for the fuel injection system are integrated in the Engine Control Module (ECM). During the manufacturing process, each injector's flow rate is measured and recorded as injection quantity adjustment (IQA) flow rate data. The flow rate data is then etched as a hexadecimal number on the body of the injector. This data, together with the injector's cylinder position, is stored in the memory of both the Glow Plug Control Module (GPCM) and the ECM. When the ignition is turn ON, both the GPCM and the ECM monitor to ensure that the fuel injection flow rate numbers are present. If any of the injector flow rate numbers are missing, the diagnostic for that control module will set the appropriate DTC.

OBDII Code P160C GMC - Engine Calibration Information Not Programmed-GPCM - AutoCodes.com — P160C GMC Code - Engine Calibration Information Not Programmed-GPCM

What does this mean?

What are the Possible Causes of the DTC P160C GMC?

Program Injector Flow Rate in Glow Plug Control Module (GPCM)

How to Fix the DTC P160C GMC?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P160C GMC code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P160C GMC Code

1. What are the common symptoms of OBDII code P160C GMC?

The common symptoms of P160C include rough idling, poor engine performance, and potential stalling of the vehicle.

2. What does the OBDII code P160C GMC indicate?

P160C indicates that the Engine Calibration Information is not programmed correctly in the Glow Plug Control Module (GPCM).

3. What are the possible causes of OBDII code P160C GMC?

Possible causes of P160C include a faulty GPCM, issues with the engine control module (ECM), or a programming error during module replacement.

4. How can I diagnose OBDII code P160C GMC?

Diagnosing P160C typically involves scanning the vehicle's computer systems for trouble codes, checking the GPCM for proper programming, and ensuring there are no wiring issues.

5. Can I drive my vehicle with OBDII code P160C GMC?

It is not recommended to drive your vehicle with an active P160C code as it can lead to further engine issues and potential breakdowns.

6. How can I repair OBDII code P160C GMC?

To repair P160C, you may need to reprogram the GPCM with the correct Engine Calibration Information using specialized diagnostic equipment.

7. Can a DIY enthusiast fix OBDII code P160C GMC?

Fixing P160C may require advanced diagnostic tools and programming knowledge, so it is recommended to seek professional help unless you have the necessary expertise.

8. How much does it cost to repair OBDII code P160C GMC?

The cost of repairing P160C can vary depending on the extent of the issue, but it may involve programming fees, diagnostic charges, and potential replacement of faulty components.

9. Will OBDII code P160C GMC affect my vehicle's fuel efficiency?

Yes, P160C can affect your vehicle's fuel efficiency due to engine performance issues caused by the incorrect calibration information in the GPCM.

10. How can I prevent OBDII code P160C GMC from occurring again?

To prevent P160C from occurring again, it's essential to ensure proper programming and calibration of the GPCM whenever engine control modules are replaced or updated. Regular vehicle maintenance and diagnostics can also help catch issues early.