AutoCodes – Chevrolet – B3680 Chevrolet

B3680 Chevrolet Code - Movable Roof Pump Motor Circuit

Quick Answer

Hydraulic pressure for the folding top system is generated by the Folding Top Pump Motor. Common causes include Faulty Movable Roof Pump Motor, Movable Roof Pump Motor harness is open or shorted, Movable Roof Pump Motor 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: B3680 Chevrolet indicates Movable Roof Pump Motor Circuit.
Common causes: Common causes include Faulty Movable Roof Pump Motor, Movable Roof Pump Motor harness is open or shorted, Movable Roof Pump Motor 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 868

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
Comments
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Code B3680 Chevrolet Description

Hydraulic pressure for the folding top system is generated by the Folding Top Pump Motor. The Folding Top Control (FTC) Module controls both voltage and ground for the Folding Top Pump Motor. The FTC Module also monitors the circuits for proper operation. The Diagnostic Trouble Code (DTC) sets if a short to voltage on the folding top pump motor direction A voltage circuit or the folding top pump motor direction B voltage circuit.

OBDII Code B3680 Chevrolet - Movable Roof Pump Motor Circuit - AutoCodes.com — B3680 Chevrolet Code - Movable Roof Pump Motor Circuit

What does this mean?

What are the Possible Causes of the DTC B3680 Chevrolet?

Faulty Movable Roof Pump Motor
Movable Roof Pump Motor harness is open or shorted
Movable Roof Pump Motor circuit poor electrical connection
Faulty Folding Top Control (FTC) Module

How to Fix the DTC B3680 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 does this mean?

Code Tech Notes

B3680 01 Movable Roof Pump Motor Circuit short to battery
B3680 02 Movable Roof Pump Motor Circuit short to ground
B3680 04 Movable Roof Pump Motor Circuit open circuit
B3680 0B Movable Roof Pump Motor Circuit pump motor current above 35A
B3680 0C Movable Roof Pump Motor Circuit pump motor current below 3A

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B3680 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.