AutoCodes – Generic – B1623

B1623 Code - Lamp Keypad Output Circuit Failure

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: B1623 indicates Lamp Keypad Output Circuit Failure.
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 5,550

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 May 24, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code B1623 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 B1623 - Lamp Keypad Output Circuit Failure - AutoCodes.com — B1623 Code - Lamp Keypad Output Circuit Failure

What does this mean?

What are the Possible Causes of the DTC B1623?

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 B1623?

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 B1623 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.

Need more information about the B1623 code?

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Information for Specific Makes

B1623 Chrysler — Glovebox Lamp Control Circuit Low
B1623 Dodge — Glovebox Lamp Control Circuit Low
B1623 Jeep — Glovebox Lamp Control Circuit Low
B1623 Lexus — Side Airbag Sensor Assembly Right Initialization Incomplete
B1623 RAM — Glovebox Lamp Control Circuit Low
B1623 Scion — Side Airbag Sensor Assembly Right Initialization Incomplete
B1623 Toyota — Side Airbag Sensor Assembly Right Initialization Incomplete

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.