AutoCodes – Mercury – B1201 Mercury

B1201 Mercury Code - Steering Wheel Audio Switch Pack 2

Quick Answer

Voltage is sent from the Audio Control Module (ACM) or Accessory Protocol Interface Module (APIM) to the steering wheel controls, and the same module grounds the return circuit. Common causes include Faulty Steering Wheel Audio Switch Pack 2, Steering Wheel Audio Switch Pack 2 harness is open or shorted, Steering Wheel Audio Switch Pack 2 circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: B1201 Mercury indicates Steering Wheel Audio Switch Pack 2.
Common causes: Common causes include Faulty Steering Wheel Audio Switch Pack 2, Steering Wheel Audio Switch Pack 2 harness is open or shorted, Steering Wheel Audio Switch Pack 2 circuit poor electrical connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 1,276

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 19, 2024

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B1201 Mercury Description

Voltage is sent from the Audio Control Module (ACM) or Accessory Protocol Interface Module (APIM) to the steering wheel controls, and the same module grounds the return circuit. The VOL-, VOL+, SEEK- and SEEK+ switches share signal and return circuits, while the VOICE, MEDIA, PHONE and OK switches share separate signal and return circuits. For all configurations, when a switch is pressed, the voltage is routed through a specific resistor value for each function. The ACM (or APIM) then uses the reference voltage to determine which control input function has been selected. The OBDII code is set by the navigation ACM when the reference voltage to the steering wheel controls is out-of-range. This can be caused by a number of different failures on the steering wheel controls circuit except for a stuck switch or a short to ground in the signal return circuit.

OBDII Code B1201 Mercury - Steering Wheel Audio Switch Pack 2 - AutoCodes.com — B1201 Mercury Code - Steering Wheel Audio Switch Pack 2

What does this mean?

What are the Possible Causes of the DTC B1201 Mercury?

Faulty Steering Wheel Audio Switch Pack 2
Steering Wheel Audio Switch Pack 2 harness is open or shorted
Steering Wheel Audio Switch Pack 2 circuit poor electrical connection
Faulty Audio Control Module (ACM) or Accessory Protocol Interface Module (APIM)

How to Fix the DTC B1201 Mercury?

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 does this mean?

Code Tech Notes

B1201:1C - Steering Wheel Audio Switch Pack 2 Circuit Voltage Out of Range
B1201:63 - Steering Wheel Audio Switch Pack 2 Circuit/Component Protection Time-Out

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1201 Mercury 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 B1201 Mercury Code

1. What are common symptoms of OBDII code B1201 in a Mercury related to the Steering Wheel Audio Switch Pack 2?

- Common symptoms include non-functional audio controls on the steering wheel.

2. What can cause the OBDII code B1201 related to the Steering Wheel Audio Switch Pack 2 in a Mercury?

- The code B1201 can be triggered by a faulty steering wheel audio switch pack or wiring issues.

3. How can I diagnose the OBDII code B1201 on my Mercury for the Steering Wheel Audio Switch Pack 2 issue?

- You can diagnose the issue by visually inspecting the steering wheel audio switch pack and checking for any visible damage or loose connections.

4. Is it safe to drive my Mercury with the OBDII code B1201 related to the Steering Wheel Audio Switch Pack 2?

- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to restore full functionality.

5. Can I repair the OBDII code B1201 myself on my Mercury for the Steering Wheel Audio Switch Pack 2 problem?

- If you have experience with automotive electrical systems, you may be able to repair the issue yourself by replacing the faulty steering wheel audio switch pack.

6. Are there any troubleshooting tips for fixing the OBDII code B1201 in a Mercury due to the Steering Wheel Audio Switch Pack 2 malfunction?

- You can start by checking the fuse related to the audio system and ensuring all wiring connections are secure and free of corrosion.

7. How much does it typically cost to repair the OBDII code B1201 on a Mercury caused by the Steering Wheel Audio Switch Pack 2 issue?

- The cost of repair can vary depending on the extent of the problem, but it may involve replacing the steering wheel audio switch pack, which can range from $100 to $300.

8. Can a faulty clock spring cause the OBDII code B1201 in a Mercury related to the Steering Wheel Audio Switch Pack 2?

- While a faulty clock spring may not directly trigger the B1201 code, it can cause issues with the steering wheel controls, leading to similar symptoms.

9. Will resetting the OBDII code B1201 on my Mercury fix the Steering Wheel Audio Switch Pack 2 problem?

- Resetting the code may temporarily clear the warning, but it is important to address the underlying issue to prevent it from recurring.

10. Is the OBDII code B1201 related to the Steering Wheel Audio Switch Pack 2 a common problem in Mercury vehicles?

- The B1201 code related to the Steering Wheel Audio Switch Pack 2 is not extremely common but can occur in Mercury vehicles with steering wheel audio controls.