AutoCodes – Generic – B3670

B3670 Code - Pump Motor Temperature Sensor Circuit

Quick Answer

The Folding Ttop Control (FTC) Module monitors the folding top pump motor temperature, checking the temperature once every 300 milliseconds. Common causes include Faulty Folding Top Pump Motor, Folding Top Pump Motor harness is open or shorted, Folding Top 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: B3670 indicates Pump Motor Temperature Sensor Circuit.
Common causes: Common causes include Faulty Folding Top Pump Motor, Folding Top Pump Motor harness is open or shorted, Folding Top 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 1,705

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
Cost to Diagnose
FAQs
Comments
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Code B3670 Description

The Folding Ttop Control (FTC) Module monitors the folding top pump motor temperature, checking the temperature once every 300 milliseconds. The FTC module supplies a 5-volt reference and monitors the sensor low reference voltage from the thermistor located in the folding top pump motor. As the pump motor warms up and the temperature increases, the thermistor resistance will increase. The FTC module monitors the voltage drop across the thermistor and uses it to calculate the temperature of the pump motor. When the FTC module detects that the temperature is above the maximum operating range, it will set this Diagnostic Trouble Code (DTC).

OBDII Code B3670 - Pump Motor Temperature Sensor Circuit - AutoCodes.com — B3670 Code - Pump Motor Temperature Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC B3670?

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

How to Fix the DTC B3670?

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 B3670 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 B3670 code?

Need more information on how to fix the B3670 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B3670 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B3670 Chevrolet — Pump Motor Temperature Sensor Circuit
B3670 Pontiac — Pump Motor Temperature 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 B3670 Code

1. What are the common symptoms of OBDII code B3670 (Pump Motor Temperature Sensor Circuit)?

- Common symptoms include the illumination of the check engine light, reduced vehicle performance, and potential issues with the hybrid system.

2. What are the possible causes of OBDII code B3670?

- Possible causes may include a faulty pump motor temperature sensor, damaged wiring or connectors in the circuit, or issues with the hybrid system components.

3. How can I diagnose the cause of OBDII code B3670?

- A thorough inspection of the pump motor temperature sensor, its wiring, and related components is essential. Using a diagnostic scanner to read the code and monitor sensor values can help pinpoint the issue.

4. Can I still drive my vehicle with OBDII code B3670 present?

- It is not recommended to continue driving the vehicle with this code present, as it can lead to further damage to the hybrid system components. It's best to address the issue promptly.

5. How can I repair OBDII code B3670?

- Repairing this code typically involves replacing the pump motor temperature sensor if faulty, repairing any damaged wiring or connectors, and clearing the code with a diagnostic scanner.

6. Are there any DIY tips for fixing OBDII code B3670?

- While some basic troubleshooting steps can be done by DIY enthusiasts, it's recommended to consult a professional mechanic for accurate diagnosis and repair of this code due to the complexity of hybrid systems.

7. Will resetting the OBDII code B3670 make it go away permanently?

- Resetting the code may temporarily turn off the check engine light, but if the underlying issue is not addressed, the code is likely to reappear. It's crucial to diagnose and repair the root cause.

8. How much does it cost to fix OBDII code B3670 at a repair shop?

- The cost of fixing this code can vary depending on the extent of the issue, the labor rates of the repair shop, and the price of any replacement parts needed. It's advisable to obtain a quote from a trusted mechanic.

9. Can OBDII code B3670 affect the fuel efficiency of the vehicle?

- Yes, unresolved issues related to this code can impact the fuel efficiency of the vehicle, as it may affect the proper functioning of the hybrid system components.

10. Is it necessary to have the OBDII code B3670 repaired immediately?

- It is recommended to address this code promptly to prevent further damage to the hybrid system components and ensure the vehicle operates safely and efficiently.