U1901 Mercury Code - CAN Network No. 2 Communication Bus Fault - Receive Error
Quick Answer
The yaw rate sensor, roll rate sensor, lateral accelerometer and longitudinal accelerometer are contained in one module called the stability control sensor cluster. Common causes include Faulty Stability Control Sensor Cluster, Stability Control Sensor Cluster harness is open or shorted, Stability Control Sensor Cluster 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
- U1901 Mercury indicates CAN Network No. 2 Communication Bus Fault - Receive Error.
- Common causes
- Common causes include Faulty Stability Control Sensor Cluster, Stability Control Sensor Cluster harness is open or shorted, Stability Control Sensor Cluster 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.
Code U1901 Mercury Description
The ABS module provides power to the sensor cluster and ground. The sensor cluster and the ABS module communicate. An open circuit or a short to power or ground on any one of these 4 circuits will cause the ABS module to set a DTC. Also, if the sensor cluster is not mounted in the correct position, with the electrical connector facing the passenger seat, the ABS module will also set DTCs.
What are the Possible Causes of the DTC U1901 Mercury?
- Faulty Stability Control Sensor Cluster
- Stability Control Sensor Cluster harness is open or shorted
- Stability Control Sensor Cluster circuit poor electrical connection
How to Fix the DTC U1901 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 U1901 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 U1901 Mercury Code
1. What are the common symptoms of OBDII code U1901 in a Mercury vehicle?
- Common symptoms include intermittent or complete loss of communication with various control modules, warning lights on the dashboard, and issues with vehicle performance.
2. What causes the U1901 code to appear in a Mercury car?
- The U1901 code is typically triggered by a fault in the CAN Network No. 2 communication bus, which may be caused by damaged wiring, loose connections, or a malfunctioning control module.
3. How serious is the U1901 code in a Mercury vehicle?
- The U1901 code should be addressed promptly as it can affect the communication between various control modules in the vehicle, potentially leading to safety hazards or drivability issues.
4. Can I still drive my Mercury with the U1901 code present?
- It is not recommended to drive the vehicle with the U1901 code active, as it may result in erratic behavior or malfunctions due to compromised communication between essential modules.
5. How can I diagnose the U1901 code in my Mercury?
- Diagnosis typically involves using a professional OBDII scanner to retrieve the code, inspecting the wiring and connections related to the CAN Network No. 2, and testing the affected control modules.
6. Are there any DIY repair tips for the U1901 code in a Mercury?
- DIY repair for the U1901 code may involve checking and securing the wiring connections, ensuring proper grounding, and inspecting for any visible damage to the communication bus components.
7. Will resetting the OBDII code U1901 in my Mercury make it go away permanently?
- Resetting the code may temporarily clear the warning light, but if the underlying issue causing the U1901 code is not addressed, it is likely to reappear once the fault is detected again.
8. Can a faulty battery or alternator cause the U1901 code in a Mercury?
- While a faulty battery or alternator can cause electrical issues, the U1901 code specifically relates to communication faults on the CAN Network No. 2 bus and is usually not directly linked to battery or alternator problems.
9. Is it necessary to visit a dealership for repairs related to the U1901 code in a Mercury?
- While a dealership may have specialized tools and expertise, a qualified mechanic or auto repair shop familiar with diagnosing and repairing communication bus faults can also effectively address the U1901 code.
10. How much can I expect to pay for repairs related to the U1901 code in a Mercury?
- The cost of repairs for the U1901 code can vary depending on the extent of the issue, parts needed for replacement, and labor involved. It is advisable to obtain quotes from different repair shops for an accurate estimate.
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