AutoCodes – Cadillac – B3133 Cadillac

B3133 Cadillac Code - All Door Unlock Circuit High

Quick Answer

The outputs to the door lock actuators are controlled by the Body Control Module (BCM). Common causes include Faulty Inoperative Door Lock Actuator, Inoperative Door Lock Actuator harness is open or shorted, Inoperative Door Lock Actuator 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: B3133 Cadillac indicates All Door Unlock Circuit High.
Common causes: Common causes include Faulty Inoperative Door Lock Actuator, Inoperative Door Lock Actuator harness is open or shorted, Inoperative Door Lock Actuator 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 463

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 04, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B3133 Cadillac Description

The outputs to the door lock actuators are controlled by the Body Control Module (BCM). When the BCM receives a lock input from a door lock switch, or a keyless entry transmitter, it applies battery positive voltage to the door lock actuator lock control circuit, a ground to the door lock actuator unlock control, and the driver door lock actuator unlock control circuits. When the BCM receives an unlock input from a door lock switch, it applies battery positive voltage to the door lock actuator unlock control, the driver door lock actuator unlock control circuits, and a ground to the door lock actuator lock control circuit. When the BCM receives an single Unlock input from a keyless entry transmitter, it applies battery positive voltage to the driver door lock actuator unlock control circuit and a ground to the door lock actuator lock control circuit to unlock the driver door. A second Unlock input from the transmitter applies battery positive voltage to the door lock actuator unlock control circuit, and a ground to the door lock actuator lock control circuit to unlock the passenger doors.

OBDII Code B3133 Cadillac - All Door Unlock Circuit High - AutoCodes.com — B3133 Cadillac Code - All Door Unlock Circuit High

What does this mean?

What are the Possible Causes of the DTC B3133 Cadillac?

Faulty Inoperative Door Lock Actuator
Inoperative Door Lock Actuator harness is open or shorted
Inoperative Door Lock Actuator circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B3133 Cadillac?

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 B3133 Cadillac 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 B3133 Cadillac code?

Need more information on how to fix the B3133 Cadillac code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B3133 Cadillac code diagnosed by a professional: Find a repair shop in your area

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 B3133 Cadillac Code

1. What are common symptoms of OBDII code B3133 Cadillac (All Door Unlock Circuit High)?

- Common symptoms include the doors not unlocking properly, the remote key fob not working, or the interior door lock switches malfunctioning.

2. What are possible causes of OBDII code B3133 Cadillac?

- Possible causes include a faulty door lock actuator, damaged wiring in the door harness, a defective body control module (BCM), or a problem with the remote keyless entry receiver.

3. How can I diagnose the issue related to code B3133 Cadillac?

- To diagnose the issue, you can use an OBDII scanner to retrieve the trouble code and then inspect the door lock actuators, check the wiring for any damage, and test the BCM and keyless entry receiver for proper functionality.

4. What are some repair tips for resolving OBDII code B3133 Cadillac?

- Repair tips may include replacing the faulty door lock actuator, repairing any damaged wiring, reprogramming the BCM if necessary, or replacing the remote keyless entry receiver.

5. Can I still drive my Cadillac with OBDII code B3133?

- It is generally safe to drive your Cadillac with this code, but you may experience inconvenience due to issues with the door locks. It is recommended to address the problem promptly to avoid potential safety concerns.

6. How much does it typically cost to repair OBDII code B3133 Cadillac?

- The cost of repair can vary depending on the specific cause of the issue. It may range from a simple wiring repair costing around $100 to replacing a door lock actuator or BCM, which could cost several hundred dollars.

7. Is OBDII code B3133 Cadillac a common issue in Cadillac vehicles?

- While it may not be one of the most common OBDII codes, issues related to the all door unlock circuit can occur in Cadillac vehicles, particularly in older models or those with high mileage.

8. Can I reset the OBDII code B3133 Cadillac without fixing the underlying issue?

- While you can clear the trouble code using an OBDII scanner, it is not recommended to do so without addressing the root cause. The issue may persist, leading to continued door lock problems.

9. Are there any preventive measures to avoid OBDII code B3133 Cadillac in the future?

- Regularly inspecting and maintaining your door lock actuators, checking the wiring for damage, and ensuring proper functioning of the BCM and keyless entry system can help prevent issues related to this code.

10. How long does it typically take to repair OBDII code B3133 Cadillac?

- The repair time can vary based on the specific cause of the issue and the complexity of the repair. It may take anywhere from a few hours to a full day, depending on the diagnostics and replacement parts needed.