AutoCodesPontiac – P1683 Pontiac

P1683 Pontiac Code - Control Module Not Programmed

Quick Answer

This diagnostic applies to internal microprocessor integrity conditions within the Engine Control Module (ECM). Common causes include Engine Control Module (ECM) programming error, Wrong Engine Control Module, Faulty Engine Control Module. 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
P1683 Pontiac indicates Control Module Not Programmed.
Common causes
Common causes include Engine Control Module (ECM) programming error, Wrong Engine Control Module, Faulty Engine Control Module.
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 1,352
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 06, 2020
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Code P1683 Pontiac Description

This diagnostic applies to internal microprocessor integrity conditions within the Engine Control Module (ECM). This Diagnostic Trouble Code (DTC) also addresses if the ECM is not programmed.
OBDII Code P1683 Pontiac - Control Module Not Programmed - AutoCodes.com
P1683 Pontiac Code - Control Module Not Programmed

What are the Possible Causes of the DTC P1683 Pontiac?

  • Engine Control Module (ECM) programming error
  • Wrong Engine Control Module
  • Faulty Engine Control Module

How to Fix the DTC P1683 Pontiac?

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 P1683 Pontiac 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 P1683 Pontiac Code

1. What does the OBDII code P1683 mean on a Pontiac?

P1683 indicates that the control module in your Pontiac has not been programmed or is not communicating properly with the vehicle's systems.

2. What are the symptoms of code P1683 in a Pontiac?

Common symptoms include the vehicle failing to start, dashboard warning lights staying on, or erratic performance of electronic systems.

3. What causes the P1683 code in a Pontiac?

The most common causes are a replacement control module that hasn’t been programmed, faulty wiring, or a communication error between modules.

4. Can I still drive my Pontiac with a P1683 code?

Driving is not recommended, as the unprogrammed control module may cause the vehicle to operate improperly or fail to start.

5. How is the P1683 code diagnosed?

A technician will use a scan tool to verify the code, inspect the control module's connections, and check if the module has been properly programmed.

6. How do you fix the P1683 code on a Pontiac?

The control module needs to be programmed with the correct software using a specialized scan tool or by taking the vehicle to a dealership.

7. Can I program the control module myself to clear P1683?

Programming typically requires a professional-grade scan tool and software access, so it’s best handled by a qualified technician or dealership.

8. Does a dead battery cause the P1683 code in a Pontiac?

A dead or weak battery can potentially trigger communication issues between modules, but it’s not a direct cause of the P1683 code.

9. How much does it cost to fix the P1683 code in a Pontiac?

The cost can vary but typically ranges from $150 to $300, depending on whether reprogramming or control module replacement is needed.

10. Can a faulty PCM cause the P1683 code in a Pontiac?

Yes, a faulty Powertrain Control Module (PCM) can trigger this code if it’s damaged or unable to retain programming.

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