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B2242 Cadillac 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 Cadillac 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 594
How popular is this code, among other codes? Low
What is this?
Table of contents Created and updated by William Orellana on Oct 11, 2019
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Code B2242 Cadillac 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 Cadillac - Memory 1 Switch Fault - AutoCodes.com
B2242 Cadillac Code - Memory 1 Switch Fault
What does this mean?

What are the Possible Causes of the DTC B2242 Cadillac?

  • 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 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 B2242 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 B2242 Cadillac Code

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

The B2242 code indicates a "Memory 1 Switch Fault," which refers to an issue with the driver's seat memory system, specifically the Memory 1 switch.

2. What are the common symptoms of a B2242 code on a Cadillac?

Symptoms may include the driver's seat not moving to the preset memory position, the memory function being inoperative, or a memory switch that doesn't respond.

3. What causes the B2242 code to appear on a Cadillac?

Common causes include a faulty Memory 1 switch, damaged wiring or connectors in the seat memory system, or a malfunction in the seat control module.

4. Can a blown fuse cause the B2242 code on a Cadillac?

Yes, a blown fuse related to the seat memory system can potentially trigger the B2242 code by disrupting power to the switch or module.

5. How do I diagnose a B2242 code on my Cadillac?

Start by checking for loose or damaged wiring and connectors around the Memory 1 switch. Use a scan tool to verify the code and test the functionality of the seat memory system.

6. Is the B2242 code a serious issue?

The B2242 code is not a critical issue, but it can be inconvenient as it affects the driver's seat memory functionality. It should be addressed to restore comfort and usability.

7. Can I fix the B2242 code on my Cadillac myself?

If the issue is due to a loose connector or damaged wiring, you may be able to fix it yourself. For more complex problems, such as a faulty switch or module, professional assistance may be needed.

8. How much does it cost to repair a B2242 code on a Cadillac?

Repair costs can vary, but replacing a faulty Memory 1 switch typically costs between $50 and $200 for parts, plus labor if done by a professional.

9. Can the B2242 code be cleared without repairs?

The code can be cleared with a scan tool, but if the underlying issue isn’t resolved, it’s likely to return.

10. What tools are needed to troubleshoot a B2242 code on a Cadillac?

You’ll need a diagnostic scan tool, a multimeter for testing electrical connections, and potentially basic hand tools for accessing components.

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