AutoCodes – Audi – P1683 Audi

P1683 Audi Code - CAN Data Bus SRS Implausible Signal

Quick Answer

P1683 Audi indicates CAN Data Bus SRS Implausible Signal. Common causes include Faulty SRS Control Module, SRS Control Module harness is open or shorted, SRS Control Module circuit poor electrical connection. 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 Audi indicates CAN Data Bus SRS Implausible Signal.
Common causes: Common causes include Faulty SRS Control Module, SRS Control Module harness is open or shorted, SRS Control Module circuit poor electrical connection.
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 3,188

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 Sep 09, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1683 Audi Description

OBDII Code P1683 Audi - CAN Data Bus SRS Implausible Signal - AutoCodes.com — P1683 Audi Code - CAN Data Bus SRS Implausible Signal

What does this mean?

What are the Possible Causes of the DTC P1683 Audi?

Faulty SRS Control Module
SRS Control Module harness is open or shorted
SRS Control Module circuit poor electrical connection

How to Fix the DTC P1683 Audi?

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 Audi 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 Audi Code

1. What does the OBDII code P1683 mean on an Audi?

The code P1683 indicates an "Implausible Signal" on the CAN Data Bus related to the Supplemental Restraint System (SRS), meaning the communication between the airbag control module and other systems is inconsistent or faulty.

2. What are the common symptoms of the P1683 code in an Audi?

Symptoms may include the airbag warning light staying on, malfunction warnings on the dashboard, or intermittent issues with the SRS system.

3. What causes the P1683 code in an Audi?

The common causes include a faulty airbag control module, a damaged CAN bus wiring or connector, software issues, or interference from other failing modules on the CAN bus network.

4. Can I drive my Audi safely with the P1683 code?

While the vehicle may still be drivable, the SRS system may not function correctly, meaning airbags could fail to deploy in an accident, posing a serious safety risk.

5. How is the P1683 code diagnosed in an Audi?

A technician will use a diagnostic scanner to check for related fault codes, inspect the CAN bus wiring and connectors, and test the airbag control module for proper communication.

6. Can a low battery cause the P1683 code in an Audi?

Yes, a weak or low battery can cause communication errors on the CAN bus network, potentially triggering the P1683 code.

7. How do you fix the P1683 code in an Audi?

Repairs may include replacing or repairing damaged CAN bus wiring, updating or reprogramming the airbag module software, or replacing a faulty airbag control module.

8. Can the P1683 code be cleared without repairs?

Clearing the code may temporarily remove the warning, but if the underlying issue isnâ€™t resolved, the code and symptoms will likely return.

9. Is the P1683 code specific to Audi vehicles?

No, while P1683 is common in Audi vehicles, it can also appear in other vehicles with CAN bus communication issues, but the exact meaning may vary.

10. How much does it cost to repair the P1683 code in an Audi?

The cost depends on the underlying issue, but it typically ranges from $100 for minor wiring repairs to over $1,000 if the airbag control module needs replacement.