B2120 Chrysler Code - Ignition Run/Acc/Pad Control Circuit Open
Quick Answer
The Front Control Module monitors the Ignition Run/ACC/Pad Control Circuit. Common causes include Faulty Accessory Delay Relay, Accessory Delay Relay harness is open or shorted, Accessory Delay Relay 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
- B2120 Chrysler indicates Ignition Run/Acc/Pad Control Circuit Open.
- Common causes
- Common causes include Faulty Accessory Delay Relay, Accessory Delay Relay harness is open or shorted, Accessory Delay Relay 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 B2120 Chrysler Description
What are the Possible Causes of the DTC B2120 Chrysler?
- Faulty Accessory Delay Relay
- Accessory Delay Relay harness is open or shorted
- Accessory Delay Relay circuit poor electrical connection
- Faulty Front Control Module (FCM)
How to Fix the DTC B2120 Chrysler?
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 B2120 Chrysler 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 B2120 Chrysler code?
Need more information on how to fix the B2120 Chrysler code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B2120 Chrysler code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about B2120 Chrysler Code
What does the OBDII code B2120 mean for a Chrysler vehicle?
1. The B2120 code indicates an open circuit in the Ignition Run/Accessory/Pad Control Circuit, which is responsible for powering certain electrical systems when the ignition is in the "Run" or "Accessory" position. 2.
What are the common symptoms of a B2120 code in a Chrysler?
Symptoms may include electrical accessories not functioning in the "Run" or "Accessory" position, issues starting the vehicle, or a lit check engine or warning light. 3.
What causes the B2120 code to appear in a Chrysler?
This code is typically caused by a damaged or broken wire in the ignition circuit, a faulty ignition switch, a corroded connector, or an issue with the Body Control Module (BCM). 4.
Can I drive my Chrysler with a B2120 code?
While the vehicle may still run, ignoring this code could lead to further electrical issues or failure of critical systems. It’s best to address the problem as soon as possible. 5.
How can a mechanic diagnose the B2120 code?
A mechanic will use a scan tool to verify the code, inspect wiring and connectors for damage or corrosion, test the ignition switch, and check for proper operation of the Body Control Module (BCM). 6.
What repairs can fix a B2120 code in a Chrysler?
Repairs may include repairing or replacing damaged wiring, cleaning or replacing corroded connectors, replacing the ignition switch, or reprogramming or replacing the BCM if necessary. 7.
How much does it cost to repair the B2120 code on a Chrysler?
The cost varies depending on the specific issue, but it typically ranges from $100 to $500, including parts and labor, with BCM replacement being on the higher end. 8.
Can I fix a B2120 code on my Chrysler myself?
If you’re experienced with automotive electrical systems, you may be able to inspect and repair wiring or connectors. However, diagnosing and repairing more complex issues, like a faulty BCM, may require professional assistance. 9.
Does the B2120 code always indicate a faulty ignition switch?
No, while a faulty ignition switch is a potential cause, the issue could also lie in damaged wiring, corroded connectors, or a malfunctioning BCM. 10.
How can I prevent the B2120 code from occurring in my Chrysler?
Regular maintenance, including inspecting wiring and connectors for damage or corrosion, and addressing electrical issues promptly can help prevent this code from appearing.
Discuss the causes and fixes for B2120 Chrysler OBDII Code
Code B2120 Chrysler 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.
