AutoCodes – Cadillac – B052B Cadillac

B052B Cadillac Code - Assist Step Position Sensor Supply Circuit

Quick Answer

The Assist Step Control (ASC) Module controls the running board actuators to extend or retract the running boards. Common causes include Faulty Left Side Assist Step Motor, Left Side Assist Step Motor harness is open or shorted, Left Side Assist Step Motor circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: B052B Cadillac indicates Assist Step Position Sensor Supply Circuit.
Common causes: Common causes include Faulty Left Side Assist Step Motor, Left Side Assist Step Motor harness is open or shorted, Left Side Assist Step Motor circuit poor electrical connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 276

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 18, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B052B Cadillac Description

The Assist Step Control (ASC) Module controls the running board actuators to extend or retract the running boards. Each actuator consists of an electric motor and a hall-effect switch. The module supplies a low reference and 10 V reference source voltage to the hall-effect switch. The assist step control module monitors the signal from the hall effect switch on the signal circuit. When the actuator shaft rotates, the hall-effect switch provides pulses to the assist step control module which uses the pulses as counts to determine the location of the assist steps. The assist step control module supplies the actuator motor with a 12 V control circuit and a ground control circuit. The assist step control module controls the direction of the actuator by changing the polarity of the control circuits.

OBDII Code B052B Cadillac - Assist Step Position Sensor Supply Circuit - AutoCodes.com — B052B Cadillac Code - Assist Step Position Sensor Supply Circuit

What does this mean?

What are the Possible Causes of the DTC B052B Cadillac?

Faulty Left Side Assist Step Motor
Left Side Assist Step Motor harness is open or shorted
Left Side Assist Step Motor circuit poor electrical connection
Faulty Assist Step Control (ASC) Module

How to Fix the DTC B052B 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 B052B 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.

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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 B052B Cadillac Code

1. What are the common symptoms of OBDII code B052B in a Cadillac related to the Assist Step Position Sensor Supply Circuit?

The common symptoms include malfunctioning power running boards, erratic deployment, or failure to deploy when required.

2. What usually causes the OBDII code B052B related to the Assist Step Position Sensor Supply Circuit in a Cadillac?

The code is typically triggered by a faulty assist step position sensor, damaged wiring, or poor electrical connections.

3. How can I diagnose the issue causing OBDII code B052B in my Cadillac's Assist Step Position Sensor Supply Circuit?

Diagnosis involves conducting a thorough inspection of the assist step system, checking the wiring for damage, testing the sensors for proper functioning, and using an OBDII scanner to retrieve the specific fault code.

4. Is it safe to continue driving my Cadillac with the OBDII code B052B related to the Assist Step Position Sensor Supply Circuit?

It is not recommended to drive the vehicle with this issue as it may lead to further damage to the assist step system or pose a safety risk due to improper deployment.

5. What are some repair tips for addressing OBDII code B052B in a Cadillac's Assist Step Position Sensor Supply Circuit?

Repair tips include checking and repairing any damaged wiring, replacing the faulty assist step position sensor, ensuring proper connections, and clearing the fault code with an OBDII scanner.

6. Can I fix the OBDII code B052B related to the Assist Step Position Sensor Supply Circuit in my Cadillac myself?

While some basic troubleshooting and repairs can be done by DIY enthusiasts, it is recommended to consult a professional mechanic or dealership for a proper diagnosis and repair of this issue.

7. How much does it typically cost to repair the OBDII code B052B in a Cadillac's Assist Step Position Sensor Supply Circuit?

The cost of repair can vary depending on the extent of the issue, parts needed for replacement, and labor charges. It is advisable to obtain quotes from different repair shops for an accurate estimate.

8. Will resetting the OBDII code B052B related to the Assist Step Position Sensor Supply Circuit make it go away permanently?

Simply clearing the fault code without addressing the underlying issue will not solve the problem permanently. It is essential to diagnose and repair the root cause to prevent the code from reoccurring.

9. Are there any recalls or technical service bulletins related to OBDII code B052B in Cadillac vehicles?

It is advisable to check with the Cadillac dealership or manufacturer for any recalls or technical service bulletins related to the OBDII code B052B specifically in your vehicle model and year.

10. Can extreme weather conditions affect the triggering of OBDII code B052B in a Cadillac's Assist Step Position Sensor Supply Circuit?

Extreme weather conditions, especially moisture and corrosion, can potentially worsen the symptoms associated with this code by affecting the electrical components of the assist step system. Regular inspections and maintenance can help prevent such issues.