C1904 Mercury Code - Ride Control Right Rear Shock Actuator Circuit Short To Ground
Quick Answer
The Air Suspension Module monitors the Ride Control Right Rear Shock Actuator. Common causes include Faulty Ride Control Right Rear Shock Actuator, Ride Control Right Rear Shock Actuator harness is open or shorted, Ride Control Right Rear Shock Actuator 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
- C1904 Mercury indicates Ride Control Right Rear Shock Actuator Circuit Short To Ground.
- Common causes
- Common causes include Faulty Ride Control Right Rear Shock Actuator, Ride Control Right Rear Shock Actuator harness is open or shorted, Ride Control Right Rear Shock Actuator 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 C1904 Mercury Description
What are the Possible Causes of the DTC C1904 Mercury?
- Faulty Ride Control Right Rear Shock Actuator
- Ride Control Right Rear Shock Actuator harness is open or shorted
- Ride Control Right Rear Shock Actuator circuit poor electrical connection
- Faulty Air Suspension Module
How to Fix the DTC C1904 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 C1904 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 C1904 Mercury Code
What does the OBDII code C1904 indicate?
The OBDII code C1904 indicates a problem with the right rear shock actuator circuit, specifically a short to ground condition.
What are common symptoms of a C1904 code?
Common symptoms include a warning light on the dashboard, a rough ride, or reduced ride control performance in the rear of the vehicle.
What could cause the C1904 code to trigger?
Causes may include damaged wiring or connectors, a faulty shock actuator, or issues with the vehicle’s ride control system.
How can I diagnose the C1904 code?
Start by visually inspecting the wiring and connectors for damage. Use a multimeter to check for continuity and shorts in the actuator circuit.
What is the typical repair for a C1904 code?
Repairs often involve fixing or replacing damaged wiring, connectors, or the right rear shock actuator itself.
Can I clear the C1904 code without fixing the issue?
Yes, you can clear the code, but it will likely reappear if the underlying issue is not resolved.
Will driving with a C1904 code cause further damage?
While it may not cause immediate damage, ignoring the issue can lead to further wear on the suspension system and compromised ride quality.
How much does it typically cost to repair a C1904 code?
Repair costs can vary widely, but expect to pay anywhere from $100 to $600, depending on whether you need to replace wiring, connectors, or the shock actuator.
Is it safe to drive a vehicle with a C1904 code?
While it may be drivable, it’s not recommended to drive with this code as it can affect handling and safety due to compromised ride control.
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