C1420 Jeep Code - Rear Differential Control Circuit Current Performance
Quick Answer
The Final Differential Control Module (FDCM) monitors the Rear Differential Solenoid. Common causes include Faulty Final Differential Control Module (FDCM), Final Differential Control Module (FDCM) harness is open or shorted, Final Differential Control Module (FDCM) 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
- C1420 Jeep indicates Rear Differential Control Circuit Current Performance.
- Common causes
- Common causes include Faulty Final Differential Control Module (FDCM), Final Differential Control Module (FDCM) harness is open or shorted, Final Differential Control Module (FDCM) 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 C1420 Jeep Description
What are the Possible Causes of the DTC C1420 Jeep?
- Faulty Final Differential Control Module (FDCM)
- Final Differential Control Module (FDCM) harness is open or shorted
- Final Differential Control Module (FDCM) circuit poor electrical connection
How to Fix the DTC C1420 Jeep?
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 C1420 Jeep 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.
Need more information about the C1420 Jeep code?
Need more information on how to fix the C1420 Jeep code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the C1420 Jeep code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about C1420 Jeep Code
1. What are the common symptoms of OBDII code C1420 in a Jeep related to the rear differential control circuit?
- Common symptoms include erratic rear differential operation, limited traction control functionality, and the illumination of the traction control or ABS warning lights on the dashboard.
2. What are the potential causes of OBDII code C1420 in a Jeep?
- The code C1420 in a Jeep could be triggered by issues such as damaged wiring or connectors in the rear differential control circuit, a faulty rear differential control module, or a malfunctioning wheel speed sensor.
3. How can I diagnose the OBDII code C1420 in my Jeep?
- Diagnosis typically involves using an OBDII scanner to retrieve the trouble code and inspecting the rear differential control circuit components for any visible damage, corrosion, or loose connections.
4. Can I still drive my Jeep with OBDII code C1420 present?
- It is not recommended to drive the vehicle with the code C1420 present, as it may affect the proper functioning of the rear differential and traction control systems, potentially compromising safety and vehicle performance.
5. How can I reset the OBDII code C1420 in my Jeep?
- After addressing the underlying issue causing the code C1420, you can reset it using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes to clear the stored fault code.
6. Is it possible to repair OBDII code C1420 in a Jeep by myself?
- Depending on your experience and access to tools, you may be able to address the code C1420 issue yourself by inspecting and repairing the rear differential control circuit components, but professional assistance is recommended for complex repairs.
7. Are there any common repair tips for fixing OBDII code C1420 in a Jeep?
- Common repair tips include checking and repairing any damaged wiring or connectors in the rear differential control circuit, ensuring proper grounding of components, and verifying the functionality of the wheel speed sensors.
8. What precautions should I take when working on the rear differential control circuit related to OBDII code C1420?
- Ensure the vehicle is safely lifted and supported, disconnect the battery before starting any work, and follow proper safety protocols when handling electrical components to prevent injury or damage to the vehicle.
9. Can extreme weather conditions affect the occurrence of OBDII code C1420 in a Jeep?
- Extreme weather conditions such as heavy rain, snow, or extreme temperatures can potentially exacerbate existing issues in the rear differential control circuit, leading to the triggering of the code C1420.
10. How much does it typically cost to repair OBDII code C1420 in a Jeep at a professional auto repair shop?
- Repair costs for OBDII code C1420 in a Jeep can vary depending on the specific cause of the issue, but they may range from $200 to $600, including parts and labor.
Discuss the causes and fixes for C1420 Jeep OBDII Code
Code C1420 Jeep comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
