AutoCodes – Buick – B2242 Buick

B2242 Buick Code - Memory 1 Switch Fault

Quick Answer

The driver door switch signal circuits provide input to the Driver Door Module (DDM) when the memory 1 or memory 2 select switch is activated. Common causes include Faulty Memory 1 Switch, Memory 1 Switch harness is open or shorted, Memory 1 Switch 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: B2242 Buick indicates Memory 1 Switch Fault.
Common causes: Common causes include Faulty Memory 1 Switch, Memory 1 Switch harness is open or shorted, Memory 1 Switch 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 576

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 Oct 11, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2242 Buick Description

The driver door switch signal circuits provide input to the Driver Door Module (DDM) when the memory 1 or memory 2 select switch is activated. These inputs allow the DDM to detect a memory function recall request. The DDM provides power and ground to the memory switches. When a memory select switch is activated, ground is supplied through the memory select switch to the signal circuit, which is pulled low. When the DDM detects low voltage on the signal circuit, it will activate the memory functions and also send a message on the serial data line to other modules responsible for memory recall functions. The DDM monitors the signal circuits to determine how long the ground has been applied. If the DDM detects that a ground is applied for greater than 20 seconds, a Diagnostic Trouble Code (DTC) is set.

OBDII Code B2242 Buick - Memory 1 Switch Fault - AutoCodes.com — B2242 Buick Code - Memory 1 Switch Fault

What does this mean?

What are the Possible Causes of the DTC B2242 Buick?

Faulty Memory 1 Switch
Memory 1 Switch harness is open or shorted
Memory 1 Switch circuit poor electrical connection
Faulty Driver Door Module (DDM)

How to Fix the DTC B2242 Buick?

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 B2242 Buick 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 B2242 Buick Code

1. What does the OBDII code B2242 mean on a Buick?

The B2242 code indicates a "Memory 1 Switch Fault," which relates to the memory function of a power seat or other memory-equipped components in the vehicle.

2. What are the common symptoms of the B2242 code in a Buick?

Symptoms may include non-functional memory seat settings, inability to save or recall seat positions, or intermittent operation of the memory feature.

3. What causes the B2242 code to trigger in a Buick?

Common causes include a faulty memory seat switch, wiring issues such as damaged or corroded connections, or a malfunctioning memory control module.

4. Can the B2242 code affect other vehicle functions?

This code typically only impacts memory-related features, such as memory seats or mirrors, and does not usually affect the overall drivability of the vehicle.

5. How can I diagnose the B2242 code on my Buick?

Start by inspecting the memory switch for visible damage, checking wiring and connectors for wear or corrosion, and testing the memory control module for faults using a scan tool.

6. Is it safe to drive with the B2242 code active?

Yes, it is generally safe to drive with this code, as it does not affect critical vehicle systems. However, memory seat functionality may remain impaired.

7. How do I fix the B2242 code in my Buick?

Repairs may include replacing the faulty memory switch, repairing or replacing damaged wiring, or reprogramming or replacing the memory control module.

8. Can clearing the B2242 code solve the issue permanently?

Clearing the code may temporarily reset the system, but the underlying issue must be addressed to prevent the code from returning.

9. How much does it cost to fix the B2242 code on a Buick?

Repair costs can vary, ranging from $50 to $300, depending on whether the issue is a simple wiring repair or requires replacing the memory switch or module.

10. What tools do I need to troubleshoot the B2242 code?

You'll need a scan tool capable of reading manufacturer-specific codes, a multimeter for testing electrical circuits, and basic hand tools for inspecting and repairing wiring or components.