AutoCodes – Volvo – P1633 Volvo

P1633 Volvo Code - Vehicle Speed Signal

Quick Answer

The Diagnostic Trouble Code (DTC) is stored when an error message is sent to Engine Control Module (ECM) if a fault in the vehicle speed signal has been detected in the Anti-Lock Brake System (ABS) Control Module. Common causes include Faulty Anti-Lock Brake System (ABS) Control Module, ABS Control Module harness is open or shorted, ABS 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: P1633 Volvo indicates Vehicle Speed Signal.
Common causes: Common causes include Faulty Anti-Lock Brake System (ABS) Control Module, ABS Control Module harness is open or shorted, ABS 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 3,563

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 Aug 10, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1633 Volvo Description

The Diagnostic Trouble Code (DTC) is stored when an error message is sent to Engine Control Module (ECM) if a fault in the vehicle speed signal has been detected in the Anti-Lock Brake System (ABS) Control Module. The vehicle speed sensor signal from the ABS Control Module is faulty or missing. Defective vehicle speed signal to the ABS/Brake Control Module (BCM). DTCs for the Vehicle Speed Sensor (VSS) signal are stored in the ABS/BCM.

OBDII Code P1633 Volvo - Vehicle Speed Signal - AutoCodes.com — P1633 Volvo Code - Vehicle Speed Signal

What does this mean?

What are the Possible Causes of the DTC P1633 Volvo?

Faulty Anti-Lock Brake System (ABS) Control Module
ABS Control Module harness is open or shorted
ABS Control Module circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P1633 Volvo?

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 P1633 Volvo 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.

Need more information about the P1633 Volvo code?

Need more information on how to fix the P1633 Volvo code? Get Access to Factory Service Manuals

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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 P1633 Volvo Code

1. What are the common symptoms of OBDII code P1633 in a Volvo related to the Vehicle Speed Signal?

- Common symptoms include erratic speedometer behavior, inaccurate speed readings, and potential issues with cruise control functionality.

2. What are the possible causes of OBDII code P1633 in a Volvo?

- The code P1633 in a Volvo is often triggered by a faulty vehicle speed sensor, damaged wiring or connectors in the speed sensor circuit, or a defective instrument cluster.

3. How can I diagnose the cause of OBDII code P1633 in my Volvo?

- To diagnose the issue, start by checking the vehicle speed sensor for proper operation, inspecting the wiring and connectors for any damage, and testing the instrument cluster for faults using a diagnostic tool.

4. Can I continue driving my Volvo with OBDII code P1633 related to the Vehicle Speed Signal?

- While the vehicle may still be operable with this code, it is recommended to address the issue promptly to prevent potential safety hazards and ensure accurate speed readings.

5. Is it possible to reset OBDII code P1633 in a Volvo without fixing the underlying issue?

- Simply clearing the code without addressing the root cause, such as a faulty speed sensor, will likely result in the code reappearing once the issue is detected again.

6. How much does it typically cost to repair OBDII code P1633 in a Volvo?

- The cost of repairing OBDII code P1633 in a Volvo can vary depending on the specific cause of the issue, but it may involve replacing the vehicle speed sensor, repairing wiring, or addressing instrument cluster faults.

7. Are there any DIY repair tips for fixing OBDII code P1633 in a Volvo?

- DIY enthusiasts with automotive experience may attempt to replace the vehicle speed sensor or repair damaged wiring themselves, but it's recommended to consult a professional if unsure.

8. Will OBDII code P1633 cause my Volvo to fail an emissions test?

- OBDII code P1633 related to the Vehicle Speed Signal may not directly cause a failed emissions test, but it can still indicate underlying issues that should be resolved to maintain optimal vehicle performance.

9. How long does it take to repair OBDII code P1633 in a Volvo?

- The repair time for OBDII code P1633 in a Volvo can vary based on the specific cause and complexity of the issue, with some repairs taking a few hours to complete.

10. Can extreme weather conditions affect the triggering of OBDII code P1633 in a Volvo?

- Extreme weather conditions, particularly temperature fluctuations, can potentially worsen existing issues related to the vehicle speed sensor or wiring, leading to the triggering of OBDII code P1633 in a Volvo.