AutoCodes – Generic – B1442

B1442 Code - Door Handle Switch Circuit Failure

Quick Answer

The Body Control Module (BCM) monitors the Door Handle Switch. Common causes include Faulty Door Handle Switch, Door Handle Switch harness is open or shorted, Door Handle 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: B1442 indicates Door Handle Switch Circuit Failure.
Common causes: Common causes include Faulty Door Handle Switch, Door Handle Switch harness is open or shorted, Door Handle 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 15,028

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 Apr 09, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1442 Description

The Body Control Module (BCM) monitors the Door Handle Switch. The BCM sets the OBDII code when the Door Handle Switch is not to factory specifications.

OBDII Code B1442 - Door Handle Switch Circuit Failure - AutoCodes.com — B1442 Code - Door Handle Switch Circuit Failure

What does this mean?

What are the Possible Causes of the DTC B1442?

Faulty Door Handle Switch
Door Handle Switch harness is open or shorted
Door Handle Switch circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B1442?

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 B1442 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 B1442 code?

Need more information on how to fix the B1442 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1442 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B1442 Lexus — Air Inlet Damper Control Servo Motor Circuit
B1442 Scion — Air Inlet Damper Control Servo Motor Circuit
B1442 Toyota — Air Inlet Damper Control Servo Motor Circuit

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 B1442 Code

1. What are the common symptoms of OBDII code B1442 (Door Handle Switch Circuit Failure)?

- The common symptoms include inoperative door handle switches, difficulty locking or unlocking doors, and malfunctioning interior lights.

2. What can cause the OBDII code B1442 to trigger?

- The code B1442 is typically triggered by a fault in the door handle switch circuit, such as damaged wiring, a faulty switch, or a poor connection.

3. How can I diagnose the cause of OBDII code B1442 on my vehicle?

- To diagnose the issue, you can start by visually inspecting the door handle switches and their wiring for any signs of damage. Using a multimeter to test the circuit continuity can also help pinpoint the problem.

4. Is it safe to continue driving with the OBDII code B1442 present?

- It is generally safe to drive with the B1442 code, but it is recommended to address the issue promptly to ensure proper functionality of the door handle switches and related systems.

5. Can I repair the OBDII code B1442 issue myself?

- Depending on your automotive knowledge and skills, you may be able to repair the B1442 issue yourself by replacing the faulty door handle switch, repairing damaged wiring, or fixing any loose connections.

6. Are there any special tools required to fix the OBDII code B1442 problem?

- Basic tools such as a screwdriver, pliers, and a multimeter may be needed to diagnose and repair the B1442 code. Specialized tools may be required for accessing hard-to-reach components.

7. How much does it typically cost to repair the OBDII code B1442 issue at a repair shop?

- The cost of repairing OBDII code B1442 can vary depending on the extent of the issue, labor rates in your area, and the cost of parts. It is advisable to get estimates from different repair shops.

8. Can resetting the OBDII system clear the B1442 code permanently?

- While resetting the OBDII system may temporarily clear the B1442 code, it is important to address the underlying issue causing the fault in the door handle switch circuit to prevent the code from reoccurring.

9. Will fixing the OBDII code B1442 problem improve the overall safety of my vehicle?

- Yes, resolving the B1442 issue will improve the safety of your vehicle by ensuring proper operation of the door handle switches, which are essential for accessing and securing the vehicle.

10. What other related symptoms or issues should I look out for if I have the OBDII code B1442?

- In addition to the symptoms associated with the door handle switch circuit failure, you should also be alert for any related electrical issues, such as malfunctioning power windows or door locks, that may indicate a broader electrical problem.