B1136 Mercury Code - Audio Steering Wheel Switch #2 Circuit Failure
Quick Answer
Two different steering wheel switch configurations are available, depending on whether the vehicle is equipped with the SYNC system. Common causes include Faulty Audio Steering Wheel Switch, Audio Steering Wheel Switch harness is open or shorted, Audio Steering Wheel Switch 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
- B1136 Mercury indicates Audio Steering Wheel Switch #2 Circuit Failure.
- Common causes
- Common causes include Faulty Audio Steering Wheel Switch, Audio Steering Wheel Switch harness is open or shorted, Audio Steering Wheel Switch 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.
Code B1136 Mercury Description
On vehicles without the SYNC system, all of the steering wheel control switches are wired to the Audio Control Module (ACM). The steering wheel controls are: VOL+, VOL-, SEEK+, SEEK-, and MEDIA. The SEEK+ and SEEK- switches are represented by arrows.
For vehicles equipped with the SYNC system, the steering wheel controls are: VOL+, VOL-, SEEK+, SEEK-, MEDIA, VOICE, PHONE, and OK. The SEEK+ and SEEK- switches are represented by arrows, the VOICE button is represented by an icon of someone speaking, and the PHONE button is represented by an icon of a phone with an up-and-down arrow. The VOICE, PHONE, and OK switches are wired to the accessory protocol interface module (APIM), while the remaining switches are wired to the ACM.
For all switches, a reference voltage is sent from the appropriate module to the steering wheel controls. When a switch is pressed, the voltage is routed through a specific resistor value for each function. The module provides the ground for the reference voltage. The module uses this reference voltage to determine which control input function has been selected.
What are the Possible Causes of the DTC B1136 Mercury?
- Faulty Audio Steering Wheel Switch
- Audio Steering Wheel Switch harness is open or shorted
- Audio Steering Wheel Switch circuit poor electrical connection
How to Fix the DTC B1136 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 is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1136 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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Frequently Asked Questions about B1136 Mercury Code
1. What are the common symptoms of OBDII code B1136 Mercury (Audio Steering Wheel Switch #2 Circuit Failure)?
- Common symptoms include malfunctioning audio controls on the steering wheel, such as the volume buttons or track selection buttons not responding.
2. What are the possible causes of OBDII code B1136 Mercury?
- The code may be triggered due to a faulty steering wheel audio switch, damaged wiring connections, or a malfunction in the audio control module.
3. How can I diagnose OBDII code B1136 Mercury?
- A thorough inspection of the steering wheel audio switch, checking for loose connections, and using a diagnostic scanner to read the trouble codes can help diagnose the issue.
4. Can a DIY enthusiast repair OBDII code B1136 Mercury?
- Repairing this code may require specialized knowledge and tools. It is recommended to consult a professional mechanic for accurate diagnosis and repair.
5. What is the typical cost to repair OBDII code B1136 Mercury?
- The cost of repairing this code can vary depending on the exact cause of the issue. It is best to get a diagnosis from a mechanic to determine the repair cost.
6. Is it safe to continue driving with OBDII code B1136 Mercury present?
- While the vehicle may still be operational with this code, it is best to address the issue promptly to avoid any potential safety hazards or further damage to the audio control system.
7. Can resetting the OBDII code B1136 Mercury on my own resolve the issue?
- Resetting the code may temporarily clear the error, but if the underlying issue is not addressed, the code is likely to reappear. It is important to diagnose and fix the root cause of the problem.
8. How long does it typically take to repair OBDII code B1136 Mercury?
- The repair time can vary depending on the complexity of the issue and the availability of replacement parts. Some repairs may be completed within a few hours, while others may take longer.
9. Are there any preventive measures to avoid OBDII code B1136 Mercury in the future?
- Regular maintenance checks, including inspecting the steering wheel audio controls during routine service appointments, can help prevent issues that may trigger this error code.
10. Can extreme weather conditions affect the likelihood of OBDII code B1136 Mercury occurring?
- Extreme temperatures or moisture levels can potentially impact the electrical components involved in the steering wheel audio controls, increasing the risk of triggering this error code.
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