AutoCodes – Chevrolet – B2253 Chevrolet

B2253 Chevrolet Code - Right Key Cylinder Switch Fault

Quick Answer

The driver or passenger door key switch signal circuits provide input to the Driver Door Module (DDM) or Passenger Door Module (PDM) when the driver or passenger door lock cylinder is rotated to the UNLOCK position. Common causes include Faulty Right Key Cylinder Switch, Right Key Cylinder Switch harness is open or shorted, Right Key Cylinder 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: B2253 Chevrolet indicates Right Key Cylinder Switch Fault.
Common causes: Common causes include Faulty Right Key Cylinder Switch, Right Key Cylinder Switch harness is open or shorted, Right Key Cylinder 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 622

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 B2253 Chevrolet Description

The driver or passenger door key switch signal circuits provide input to the Driver Door Module (DDM) or Passenger Door Module (PDM) when the driver or passenger door lock cylinder is rotated to the UNLOCK position. This input allows the door module to detect a door UNLOCK request. The door module provides power and ground to the door key switch. When the door lock cylinder is rotated to the UNLOCK position, a ground is supplied through the door key switch to the signal circuit, which is pulled low. When the DDM detects low voltage on the driver door key switch signal circuit, it sends a message on the serial data line to the PDM to UNLOCK the passenger door. When the PDM detects low voltage on the passenger door key switch signal circuit, it sends a message on the serial data line to the DDM to UNLOCK the driver door. The messages sent on the serial data line are also used by other systems to execute certain functions. The DDM and PDM monitor the signal circuits to determine how long the ground has been applied. If the DDM or PDM detects that the ground is applied for greater than 20 seconds, a Diagnostic Trouble Code (DTC) is set.

OBDII Code B2253 Chevrolet - Right Key Cylinder Switch Fault - AutoCodes.com — B2253 Chevrolet Code - Right Key Cylinder Switch Fault

What does this mean?

What are the Possible Causes of the DTC B2253 Chevrolet?

Faulty Right Key Cylinder Switch
Right Key Cylinder Switch harness is open or shorted
Right Key Cylinder Switch circuit poor electrical connection
Faulty Passenger Door Module (PDM)

How to Fix the DTC B2253 Chevrolet?

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 B2253 Chevrolet 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 B2253 Chevrolet Code

1. What are the common symptoms of OBDII code B2253 (Chevrolet) - Right Key Cylinder Switch Fault?

- Common symptoms include difficulty turning the ignition key, inability to start the vehicle, and warning lights on the dashboard related to the key system.

2. What can cause the OBDII code B2253 (Chevrolet) to appear?

- This code usually indicates a fault with the right key cylinder switch, which may be caused by a faulty switch, damaged wiring, or a problem with the key itself.

3. How can I diagnose the Right Key Cylinder Switch Fault (B2253) in my Chevrolet?

- Diagnosing this issue typically involves checking the key cylinder switch for proper operation, inspecting the wiring for any damage, and testing the key for compatibility and functionality.

4. Is it safe to continue driving with the OBDII code B2253 (Chevrolet) present?

- It is not recommended to drive the vehicle with this code present, as it may lead to unexpected starting issues or potential immobilization of the vehicle.

5. Can I repair the Right Key Cylinder Switch Fault (B2253) in my Chevrolet myself?

- While some DIY enthusiasts may attempt to repair this issue, it is recommended to have a professional technician diagnose and repair the right key cylinder switch fault to ensure proper functioning.

6. How much does it typically cost to repair the OBDII code B2253 (Chevrolet) - Right Key Cylinder Switch Fault?

- Repair costs can vary depending on the root cause of the issue, but it is advisable to budget for diagnostic fees, parts replacement, and labor costs associated with fixing the right key cylinder switch.

7. Are there any preventive measures to avoid the Right Key Cylinder Switch Fault (B2253) in my Chevrolet?

- Regular maintenance of the key system, avoiding excessive force when turning the key, and using a spare key occasionally can help prevent issues with the right key cylinder switch.

8. Can a low battery or electrical system issue trigger the OBDII code B2253 (Chevrolet)?

- While a low battery or electrical system problem may not directly cause the B2253 code, it can sometimes lead to issues with the key cylinder switch due to insufficient power supply.

9. Will resetting the OBDII system clear the B2253 fault code in my Chevrolet?

- Resetting the OBDII system may temporarily clear the fault code, but if the underlying issue with the right key cylinder switch is not addressed, the code is likely to reappear.

10. Is the Right Key Cylinder Switch Fault (B2253) a common problem in Chevrolet vehicles?

- The B2253 code related to the right key cylinder switch fault can occur in Chevrolet vehicles, particularly in models with aging key systems or components.