C1420 Chrysler Code - Rear Differential Control Circuit Current Performance
Quick Answer
The C1420 Chrysler code indicates a problem with the rear differential control circuit's current performance. Common causes include Faulty rear differential control module, Damaged wiring or connectors in the control circuit, Low differential fluid level or contaminated fluid. 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 Chrysler indicates Rear Differential Control Circuit Current Performance.
- Common causes
- Common causes include Faulty rear differential control module, Damaged wiring or connectors in the control circuit, Low differential fluid level or contaminated fluid.
- 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.
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Code C1420 Chrysler Description
The C1420 Chrysler code indicates a problem with the rear differential control circuit's current performance. The rear differential is responsible for distributing power from the transmission to the rear wheels, allowing them to rotate at different speeds when necessary, such as during turns. The control circuit is crucial in managing this process effectively. When this code is triggered, it suggests that there is an issue with the current flowing through the rear differential control circuit, potentially leading to improper power distribution and affecting the vehicle's handling and performance.
Common Causes of C1420 Chrysler
- Faulty rear differential control module.
- Damaged wiring or connectors in the control circuit.
- Low differential fluid level or contaminated fluid.
- Malfunctioning wheel speed sensors affecting the control circuit.
- Mechanical issues within the rear differential itself, such as worn gears or bearings.
Symptoms of C1420 Chrysler
- Illumination of the ABS or traction control warning light on the dashboard.
- Difficulty turning or maneuvering the vehicle, especially at low speeds.
- Unusual noises coming from the rear of the vehicle, such as grinding or whining.
- Uneven tire wear, indicating inconsistent power distribution to the rear wheels.
- Decreased fuel efficiency due to the rear differential not operating efficiently.
How to Fix C1420 Chrysler
- Diagnose the specific cause of the issue using a diagnostic scanner to pinpoint the exact fault.
- Inspect the wiring and connectors in the rear differential control circuit for any damage or corrosion, repairing or replacing as needed.
- Check and adjust the rear differential fluid level and quality, topping up or flushing the fluid if necessary.
- Test and potentially replace any faulty wheel speed sensors affecting the control circuit.
- If the rear differential control module is found to be faulty, it may need to be replaced and reprogrammed to ensure proper function.
Cost to Fix C1420 Chrysler
Repair costs for addressing a rear differential control circuit issue can vary widely depending on the specific cause of the problem and the extent of the repairs needed. On average, the cost for parts and labor for this type of repair could range from $200 to $800 or more. It's important to factor in the diagnosis time and labor rates at your local auto repair shop, as well as any additional costs for parts or services that may be required. Be sure to obtain multiple quotes and compare prices to ensure you're getting a fair estimate for the repair.
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Frequently Asked Questions about C1420 Chrysler Code
1. What does the OBDII code C1420 mean on a Chrysler vehicle?
C1420 indicates an issue with the Rear Differential Control Circuit, specifically related to its current performance, suggesting an electrical fault or malfunction in the system.
2. What are common symptoms of the C1420 code?
Symptoms may include the Check Engine Light or service light illuminating, reduced traction control performance, or unusual noises or behaviors from the rear differential.
3. What causes the C1420 code to appear?
Possible causes include a faulty rear differential actuator, damaged wiring or connectors in the control circuit, a blown fuse, or a malfunctioning control module.
4. Is it safe to drive with the C1420 code active?
While the vehicle may still be drivable, traction control or all-wheel drive functionality could be impaired, potentially affecting handling in slippery conditions.
5. How can I diagnose the C1420 code?
Start by inspecting the wiring and connectors for damage or corrosion, check the rear differential actuator for proper operation, and use a multimeter to test electrical continuity in the circuit.
6. Can a blown fuse cause the C1420 code?
Yes, a blown fuse in the differential control circuit can interrupt power and trigger the C1420 code.
7. How do I fix the C1420 code on my Chrysler?
Repairs may involve replacing a damaged rear differential actuator, repairing or replacing faulty wiring, or resetting the control module after resolving the issue.
8. Can a software update fix the C1420 code?
In rare cases, a software update for the vehicle's control module may resolve the issue if it's related to a programming error.
9. What tools are needed to fix the C1420 code?
You may need an OBDII scanner, a multimeter for electrical testing, and basic tools to access and inspect the rear differential components.
10. How much does it cost to repair the C1420 code?
Repair costs can vary, ranging from $100-$500 depending on whether it's a simple wiring repair or the replacement of a rear differential actuator or module.
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