AutoCodes – Chevrolet – P160C Chevrolet

P160C Chevrolet 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 Chevrolet 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 9,193

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P160C Chevrolet 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 Chevrolet - Engine Calibration Information Not Programmed-GPCM - AutoCodes.com — P160C Chevrolet Code - Engine Calibration Information Not Programmed-GPCM

What does this mean?

What are the Possible Causes of the DTC P160C Chevrolet?

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

How to Fix the DTC P160C Chevrolet?

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 Chevrolet 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.