C1851 Acura Code - Rear Differential Pump Motor
Quick Answer
The AWD Control Unit monitors the Rear Differential Pump Motor. Common causes include Faulty Rear Differential Pump Motor, Rear Differential Pump Motor harness is open or shorted, Rear Differential Pump Motor 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
- C1851 Acura indicates Rear Differential Pump Motor.
- Common causes
- Common causes include Faulty Rear Differential Pump Motor, Rear Differential Pump Motor harness is open or shorted, Rear Differential Pump Motor 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 C1851 Acura Description
What are the Possible Causes of the DTC C1851 Acura?
- Faulty Rear Differential Pump Motor
- Rear Differential Pump Motor harness is open or shorted
- Rear Differential Pump Motor circuit poor electrical connection
- Faulty AWD Control Unit
How to Fix the DTC C1851 Acura?
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.
Code Tech Notes
DTC C1851-18: Rear Differential Pump Motor Circuit Low Current
DTC C1851-19: Control Module Internal Control Module Malfunction
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C1851 Acura 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 C1851 Acura Code
1. What are the common symptoms of OBDII code C1851 in an Acura related to the rear differential pump motor?
The common symptoms include the illumination of the check engine light, difficulty shifting gears, or abnormal noises coming from the rear differential area.
2. What causes OBDII code C1851 to appear in an Acura's diagnostic system?
The code C1851 typically indicates a malfunction or failure of the rear differential pump motor in the Acura vehicle.
3. How can I diagnose the issue related to OBDII code C1851 in my Acura?
Diagnosing the issue involves using an OBDII scanner to read the trouble codes, conducting a visual inspection of the rear differential pump motor, and testing the motor's functionality.
4. Is it safe to continue driving my Acura with OBDII code C1851 present?
It is not recommended to drive the vehicle with OBDII code C1851 present, as it can lead to further damage to the rear differential system and potentially affect the vehicle's drivability.
5. Can I repair the rear differential pump motor issue causing OBDII code C1851 myself?
Repairing the rear differential pump motor issue may require specialized tools and expertise. It is recommended to consult a qualified mechanic or dealership for proper diagnosis and repair.
6. Are there any preventive maintenance tips to avoid encountering OBDII code C1851 in my Acura?
Regularly inspecting the rear differential system, ensuring proper lubrication, and addressing any unusual noises or vibrations promptly can help prevent issues leading to OBDII code C1851.
7. How much does it typically cost to repair the rear differential pump motor issue associated with OBDII code C1851 in an Acura?
The cost of repair can vary depending on the extent of the damage and labor rates. It is advisable to obtain quotes from different service centers for an accurate estimate.
8. Can resetting the OBDII system clear the code C1851 related to the rear differential pump motor in my Acura?
Resetting the OBDII system may temporarily clear the code, but it is essential to address the underlying issue causing the code to prevent it from reoccurring.
9. Is the rear differential pump motor a common problem in Acura vehicles triggering OBDII code C1851?
The rear differential pump motor issue causing OBDII code C1851 may not be a common problem in all Acura vehicles but can occur due to various factors like wear and tear or electrical issues.
10. How urgent is it to address OBDII code C1851 related to the rear differential pump motor in my Acura?
It is recommended to address OBDII code C1851 promptly to prevent further damage to the rear differential system and ensure the safe operation of the vehicle.
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