AutoCodes – Generic – B2A26

B2A26 Code - Keypad Switch Circuit Failure

Quick Answer

The Smart Junction Box (SJB) monitors for a ground signal on the keyless entry keypad signal input circuits. Common causes include Faulty Keyless Entry Keypad, Keyless Entry Keypad harness is open or shorted, Keyless Entry Keypad 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: B2A26 indicates Keypad Switch Circuit Failure.
Common causes: Common causes include Faulty Keyless Entry Keypad, Keyless Entry Keypad harness is open or shorted, Keyless Entry Keypad 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 783

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 Feb 27, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2A26 Description

The Smart Junction Box (SJB) monitors for a ground signal on the keyless entry keypad signal input circuits. When an individual keypad button is touched, an individual or combination of the input circuits is routed to ground. The SJB then determines which button was touched based on which circuit(s) are grounded. The keypad has dedicated voltage supply and ground circuits. Once the SJB determines that the 5-digit personal entry code, or the factory set 5-digit entry code has been entered on the keypad, the SJB then unlocks the driver door.
To unlock all the doors, the 3/4 button must be pressed within 5 seconds of the 5-digit code being entered.
To release the liftgate window, the 5/6 button must be pressed within 5 seconds of the 5-digit code being entered.
To lock all the doors, the 5-digit code does not need to be entered. Press the 7/8 and 9/0 buttons at the same time.
The Diagnostic Trouble Code (DTC) sets when the SJB detects a short to ground on any of the keypad input circuits. This DTC may also set if any of the keypad buttons are pressed for longer than 2 minutes.

OBDII Code B2A26 - Keypad Switch Circuit Failure - AutoCodes.com — B2A26 Code - Keypad Switch Circuit Failure

What does this mean?

What are the Possible Causes of the DTC B2A26?

Faulty Keyless Entry Keypad
Keyless Entry Keypad harness is open or shorted
Keyless Entry Keypad circuit poor electrical connection
Faulty Smart Junction Box (SJB)

How to Fix the DTC B2A26?

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 B2A26 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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Need Help with the Code?

Get the B2A26 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B2A26 Ford — Keypad Switch Circuit Failure
B2A26 Lincoln — Keypad Switch Circuit Failure
B2A26 Mercury — Keypad Switch Circuit Failure

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 B2A26 Code

1. What are the common symptoms of OBDII code B2A26 (Keypad Switch Circuit Failure)?

The common symptoms of OBDII code B2A26 include malfunctioning keypad buttons, unresponsive keypad functions, and illuminated warning lights on the dashboard.

2. What can cause the OBDII code B2A26 to trigger?

The OBDII code B2A26 (Keypad Switch Circuit Failure) can be triggered by issues such as damaged wiring, faulty keypad switches, poor electrical connections, or a defective control module.

3. How serious is the OBDII code B2A26 (Keypad Switch Circuit Failure)?

While the OBDII code B2A26 is not typically a critical issue that affects the drivability of the vehicle, it can impact the functionality of the keypad controls and may lead to inconvenience for the driver.

4. How can I diagnose the OBDII code B2A26 (Keypad Switch Circuit Failure)?

Diagnosing the OBDII code B2A26 involves using a diagnostic scanner to retrieve the code, inspecting the keypad switches and wiring for physical damage, and testing the electrical connections for proper continuity.

5. What are some repair tips for fixing the OBDII code B2A26?

Repairing the OBDII code B2A26 may involve repairing or replacing damaged wiring, replacing faulty keypad switches, ensuring proper electrical connections, or reprogramming the control module if necessary.

6. Can I drive my vehicle with the OBDII code B2A26 present?

It is generally safe to drive the vehicle with the OBDII code B2A26 present, but it is recommended to address the issue promptly to restore the proper functionality of the keypad controls.

7. How much does it typically cost to repair the OBDII code B2A26?

The cost of repairing the OBDII code B2A26 can vary depending on the extent of the issue, the parts needed for repair, and labor costs. It is advisable to consult a professional mechanic for an accurate estimate.

8. Is the OBDII code B2A26 a common issue in certain vehicle makes or models?

The OBDII code B2A26 (Keypad Switch Circuit Failure) may be more common in vehicles equipped with keypad entry systems, particularly in certain makes and models that utilize such technology.

9. Can I reset the OBDII code B2A26 myself?

While you can clear the OBDII code B2A26 using a diagnostic scanner, it is important to address the underlying issue causing the fault code to prevent it from reoccurring.

10. How long does it take to repair the OBDII code B2A26?

The repair time for the OBDII code B2A26 can vary depending on the complexity of the issue, the availability of parts, and the expertise of the mechanic. In some cases, the repair can be completed within a few hours.