AutoCodesGeneric – B1624

B1624 Code - Lamp Keypad Output Open Circuit

Quick Answer

The Body Control Module (BCM) monitors the Lamp Keypad. Common causes include Faulty Lamp Keypad, Lamp Keypad harness is open or shorted, Lamp 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
B1624 indicates Lamp Keypad Output Open Circuit.
Common causes
Common causes include Faulty Lamp Keypad, Lamp Keypad harness is open or shorted, Lamp 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 9,431
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 24, 2019
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Code B1624 Description

The Body Control Module (BCM) monitors the Lamp Keypad. The BCM sets the OBDII code when the Lamp Keypad is not to factory specifications.
OBDII Code B1624 - Lamp Keypad Output Open Circuit - AutoCodes.com
B1624 Code - Lamp Keypad Output Open Circuit

What are the Possible Causes of the DTC B1624?

  • Faulty Lamp Keypad
  • Lamp Keypad harness is open or shorted
  • Lamp Keypad circuit poor electrical connection
  • Faulty Body Control Module (BCM)

How to Fix the DTC B1624?

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 B1624 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 B1624 Code

1. What does the OBDII code B1624 mean?

B1624 indicates an open circuit in the lamp keypad output, which may affect the functionality of buttons or illumination in the vehicle's keypad system.

2. What are the symptoms of code B1624?

Symptoms may include unresponsive keypad buttons, non-functioning keypad lights, or intermittent operation of the keypad.

3. What causes the B1624 code to appear?

Common causes include a damaged keypad, a broken or disconnected wire, a faulty connector, or an issue with the control module.

4. Can I drive my car with the B1624 code active?

Yes, the vehicle can typically still be driven, but keypad functionality may be impaired, which could be inconvenient or affect vehicle security systems.

5. How do I diagnose the B1624 code?

Start by inspecting the wiring and connectors for damage or loose connections. Use a diagnostic tool to confirm the open circuit in the keypad output.

6. How can I fix the B1624 code?

Repairs may include reconnecting loose wires, replacing damaged wiring, repairing or replacing the keypad, or addressing issues with the control module.

7. How much does it cost to fix the B1624 code?

Costs vary depending on the issue. Minor wiring repairs may cost less than $100, while replacing a keypad or control module could cost several hundred dollars.

8. Can a blown fuse cause the B1624 code?

It’s unlikely, but you should still check the fuse box for any blown fuses related to the keypad or lighting system.

9. Does the B1624 code always require professional repair?

Not necessarily. If the issue is a loose connection or visible wiring damage, a knowledgeable DIYer may be able to fix it. For deeper electrical issues, professional help is recommended.

10. Will clearing the B1624 code solve the problem?

Clearing the code may temporarily remove the error, but if the underlying issue isn’t fixed, the code will likely return.

Discuss the causes and fixes for B1624 OBDII Code

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