AutoCodes – Generic – B3669

B3669 Code - Deck Lid Position Sensor Circuit

Quick Answer

S2 is the Rear Compartment Cylinder Extended Sensor. Common causes include Faulty Deck Lid Position Sensor, Deck Lid Position Sensor harness is open or shorted, Deck Lid Position Sensor 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: B3669 indicates Deck Lid Position Sensor Circuit.
Common causes: Common causes include Faulty Deck Lid Position Sensor, Deck Lid Position Sensor harness is open or shorted, Deck Lid Position Sensor 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 831

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 Mar 13, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B3669 Description

S2 is the Rear Compartment Cylinder Extended Sensor. The Folding Top Control (FTC) module uses S2 to determine the position of the deck lid while in the reverse open position. S2 is a hall effect sensor that becomes active when the deck lid is in the reverse open position. The Diagnostic Trouble Code (DTC) sets if a short to ground, short to voltage, or open is detected on the signal circuit of S2.

OBDII Code B3669 - Deck Lid Position Sensor Circuit - AutoCodes.com — B3669 Code - Deck Lid Position Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC B3669?

Faulty Deck Lid Position Sensor
Deck Lid Position Sensor harness is open or shorted
Deck Lid Position Sensor circuit poor electrical connection

How to Fix the DTC B3669?

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 does this mean?

Code Tech Notes

B3669 01 Deck Lid Position Sensor Circuit short to battery
B3669 06 Deck Lid Position Sensor Circuit short to ground or open
B3669 58 Deck Lid Position Sensor Circuit incorrect reaction after event
B3669 59 Deck Lid Position Sensor Circuit circuit/component protection time out

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B3669 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 B3669 code?

Need more information on how to fix the B3669 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B3669 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B3669 Chevrolet — Deck Lid Position Sensor Circuit
B3669 Pontiac — Deck Lid Position Sensor Circuit

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 B3669 Code

1. What are the common symptoms of OBDII code B3669 (Deck Lid Position Sensor Circuit)?

- The common symptoms include a malfunctioning trunk or deck lid release system, difficulty opening or closing the trunk, or a warning light on the dashboard.

2. What are the possible causes of OBDII code B3669?

- The code B3669 can be triggered by a faulty deck lid position sensor, damaged wiring or connectors in the circuit, or issues with the deck lid release mechanism.

3. How can I diagnose the cause of OBDII code B3669?

- To diagnose the issue, you can use an OBDII scanner to read the code and further investigate the deck lid position sensor, wiring, and connectors for any visible damage or faults.

4. Can I still drive my vehicle with OBDII code B3669?

- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to avoid potential inconvenience or safety hazards related to the deck lid.

5. What are some repair tips for fixing OBDII code B3669?

- Repair tips may include checking and replacing the deck lid position sensor, inspecting and repairing any damaged wiring or connectors, and ensuring proper alignment and operation of the deck lid mechanism.

6. Is it possible to reset OBDII code B3669 without fixing the underlying issue?

- While clearing the code temporarily may be possible with an OBDII scanner, the underlying issue causing the code will persist until properly diagnosed and repaired.

7. Can extreme weather conditions affect OBDII code B3669?

- Extreme cold or heat can potentially impact the deck lid position sensor or related components, leading to the triggering of OBDII code B3669.

8. How much does it typically cost to repair OBDII code B3669?

- The cost of repairing OBDII code B3669 can vary depending on the specific cause of the issue, the extent of repairs needed, and labor costs at the repair shop.

9. Is it necessary to take my vehicle to a mechanic for OBDII code B3669 repair?

- While some DIY enthusiasts may be able to diagnose and repair the issue themselves, consulting with a qualified mechanic is recommended for accurate diagnosis and proper repair of OBDII code B3669.

10. How long does it usually take to fix OBDII code B3669?

- The repair time for OBDII code B3669 can vary depending on the complexity of the issue and the availability of parts, but it is typically a relatively quick repair once the cause is identified.