AutoCodes – Chrysler – B181E Chrysler

B181E Chrysler Code - Hood Ajar Input Circuit Open

Quick Answer

The Body Control Module (BCM) provides a reference voltage on the hood ajar switch sense circuit. Common causes include Faulty Hood Ajar Switch, Hood Ajar Switch harness is open or shorted, Hood Ajar 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: B181E Chrysler indicates Hood Ajar Input Circuit Open.
Common causes: Common causes include Faulty Hood Ajar Switch, Hood Ajar Switch harness is open or shorted, Hood Ajar 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 2,964

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 Jul 02, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B181E Chrysler Description

The Body Control Module (BCM) provides a reference voltage on the hood ajar switch sense circuit. The Hood Ajar Switch switches the hood ajar switch sense circuit to ground when the hood is open. A diagnostic resistor internal to the switch is placed in parallel with the switch. When the BCM detects that the parallel resistor is not detected in the circuit and the switch is not closed.

OBDII Code B181E Chrysler - Hood Ajar Input Circuit Open - AutoCodes.com — B181E Chrysler Code - Hood Ajar Input Circuit Open

What does this mean?

What are the Possible Causes of the DTC B181E Chrysler?

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

How to Fix the DTC B181E Chrysler?

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 B181E Chrysler 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 more information on how to fix the B181E Chrysler code? Get Access to Factory Service Manuals

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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 B181E Chrysler Code

1. What are the common symptoms of OBDII code B181E Chrysler (Hood Ajar Input Circuit Open)?

- Common symptoms include the hood warning light staying on, the hood not securely latching, and potential issues with the vehicle's alarm system.

2. What could cause the Hood Ajar Input Circuit Open code B181E in a Chrysler vehicle?

- The code B181E can be caused by a faulty hood latch sensor, a broken wiring harness, a loose connection, or a malfunctioning body control module.

3. How can I diagnose the Hood Ajar Input Circuit Open issue in my Chrysler vehicle?

- To diagnose the issue, you can visually inspect the hood latch sensor and wiring for any visible damage, test the sensor's functionality with a multimeter, and scan the vehicle's computer for the specific OBDII code.

4. Can I continue driving my Chrysler car with the B181E code present?

- It is generally safe to drive the vehicle with the B181E code, but it is recommended to address the issue promptly to prevent any potential problems with the hood latch or alarm system.

5. How can I repair the Hood Ajar Input Circuit Open problem in my Chrysler vehicle?

- Repair options include replacing the hood latch sensor, repairing any damaged wiring, ensuring a secure connection, or reprogramming the body control module if necessary.

6. Will resetting the OBDII code B181E Chrysler clear the issue permanently?

- Resetting the code may temporarily clear the warning light, but if the underlying problem with the hood ajar input circuit remains unresolved, the code is likely to reappear.

7. Is it possible to fix the Hood Ajar Input Circuit Open issue in my Chrysler vehicle myself?

- Depending on your skills and experience with automotive repairs, you may be able to fix the issue yourself by following a repair manual or seeking guidance from online forums.

8. Can extreme weather conditions affect the Hood Ajar Input Circuit Open code in a Chrysler car?

- Yes, extreme temperatures or moisture can potentially impact the hood latch sensor or wiring, leading to the B181E code being triggered.

9. How much does it typically cost to repair the Hood Ajar Input Circuit Open problem in a Chrysler vehicle?

- The cost of repairs can vary depending on the specific issue, but it may range from $50 to $200 for parts and labor, excluding diagnostic fees.

10. Will the B181E code prevent my Chrysler vehicle from passing an emissions test?

- The B181E code itself may not directly affect emissions, but it is advisable to address the issue to ensure the proper functioning of the vehicle's systems.