AutoCodes – Jeep – B1D04 Jeep

B1D04 Jeep Code - Mirror Adjust Switch Input Circuit Performance

Quick Answer

When the Driver Door Module (DDM) receives a mirror movement command from the switch but then senses an open or shorted circuit on one of the switch sense circuits for over 100 ms., this code will set. Common causes include Faulty Mirror Adjust Switch, Mirror Adjust Switch harness is open or shorted, Mirror Adjust 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: B1D04 Jeep indicates Mirror Adjust Switch Input Circuit Performance.
Common causes: Common causes include Faulty Mirror Adjust Switch, Mirror Adjust Switch harness is open or shorted, Mirror Adjust 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 538

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 Aug 26, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1D04 Jeep Description

OBDII Code B1D04 Jeep - Mirror Adjust Switch Input Circuit Performance - AutoCodes.com — B1D04 Jeep Code - Mirror Adjust Switch Input Circuit Performance

What does this mean?

What are the Possible Causes of the DTC B1D04 Jeep?

Faulty Mirror Adjust Switch
Mirror Adjust Switch harness is open or shorted
Mirror Adjust Switch circuit poor electrical connection
Faulty Driver Door Module (DDM)

How to Fix the DTC B1D04 Jeep?

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 B1D04 Jeep 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 B1D04 Jeep code?

Need more information on how to fix the B1D04 Jeep code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 B1D04 Jeep Code

1. What are the common symptoms of OBDII code B1D04 Jeep (Mirror Adjust Switch Input Circuit Performance)?

The common symptoms include malfunctioning mirror adjustment switches, unresponsive mirror movements, and the inability to adjust the mirrors electronically.

2. What can cause the OBDII code B1D04 Jeep to appear?

The code B1D04 Jeep is typically triggered by a faulty mirror adjust switch, damaged wiring in the mirror adjust circuit, or a malfunctioning mirror control module.

3. How can I diagnose the issue related to code B1D04 Jeep?

You can diagnose the issue by visually inspecting the mirror adjust switch and wiring for any visible damage, testing the switch for continuity, and using a scan tool to check for fault codes in the mirror control module.

4. Is it safe to drive with the OBDII code B1D04 Jeep active?

It is generally safe to drive with this code, but you may experience inconvenience due to the manual adjustment of your mirrors. It is recommended to address the issue promptly to restore electronic mirror adjustment functionality.

5. What are some repair tips for fixing the OBDII code B1D04 Jeep?

Repair tips include replacing the faulty mirror adjust switch, repairing or replacing damaged wiring in the mirror adjust circuit, and resetting the mirror control module to clear the fault code.

6. Can I repair the OBDII code B1D04 Jeep issue myself?

If you have the necessary automotive knowledge and tools, you may be able to repair the issue yourself by following the diagnostic steps outlined in the vehicle's service manual. However, if you are unsure, it is advisable to seek professional assistance.

7. How much does it cost to repair the OBDII code B1D04 Jeep?

The cost of repairing this code can vary depending on the specific cause of the issue. Costs may include the price of a new mirror adjust switch, wiring repairs, diagnostic fees, and labor costs if you choose to have a mechanic fix the problem.

8. Can a faulty mirror adjust switch cause other issues in the vehicle?

While a faulty mirror adjust switch may not directly cause other significant issues in the vehicle, it can affect the convenience and functionality of adjusting your mirrors. It is still important to address the problem to ensure all electronic features are working properly.

9. Will resetting the OBDII code B1D04 Jeep make it go away permanently?

Resetting the code may temporarily clear the fault, but if the underlying issue such as a faulty mirror adjust switch or damaged wiring is not addressed, the code is likely to reappear. It is best to diagnose and repair the root cause of the problem.

10. How long does it typically take to repair the OBDII code B1D04 Jeep?

The repair time can vary depending on the complexity of the issue and the availability of parts. In general, a professional mechanic may take 1-2 hours to diagnose and repair the problem associated with code B1D04 Jeep.