B2390 Chrysler Code - Mist Switch Circuit Low
Quick Answer
The Cluster monitors the Mist Switch Circuit. Common causes include Faulty Multifunction Switch, Multifunction Switch harness is open or shorted, Multifunction Switch 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
- B2390 Chrysler indicates Mist Switch Circuit Low.
- Common causes
- Common causes include Faulty Multifunction Switch, Multifunction Switch harness is open or shorted, Multifunction Switch 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 B2390 Chrysler Description
What are the Possible Causes of the DTC B2390 Chrysler?
- Faulty Multifunction Switch
- Multifunction Switch harness is open or shorted
- Multifunction Switch circuit poor electrical connection
- Faulty Cluster
How to Fix the DTC B2390 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 B2390 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.
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Frequently Asked Questions about B2390 Chrysler Code
1. What does the OBDII code B2390 mean for Chrysler vehicles?
The B2390 code indicates a "Mist Switch Circuit Low" fault, which means the vehicle's Body Control Module (BCM) has detected a low voltage or malfunction in the windshield mist switch circuit.
2. What are the symptoms of the B2390 code in a Chrysler?
Common symptoms include non-functional or erratic operation of the windshield mist (single wipe) mode and possible warning lights on the dashboard.
3. What causes the B2390 code to appear?
Causes can include a faulty mist switch, damaged wiring or connectors in the mist switch circuit, or an issue with the Body Control Module (BCM).
4. How is the B2390 code diagnosed?
A technician will use a scan tool to confirm the code, inspect the mist switch and its wiring for damage or loose connections, and possibly test the voltage in the circuit.
5. Can I drive my Chrysler with the B2390 code active?
Yes, but with limited windshield wiper functionality, which could be dangerous in bad weather. It’s best to address the issue promptly.
6. How do I fix the B2390 code on my Chrysler?
Repairs may involve replacing the mist switch, repairing the wiring or connectors, or reprogramming or replacing the BCM if it’s faulty.
7. How much does it cost to fix the B2390 code?
Costs can vary, but replacing a mist switch typically ranges from $50 to $150, while wiring repairs or BCM replacement may cost more depending on labor and parts.
8. Can a dead battery cause the B2390 code?
A weak or dead battery is unlikely to directly cause this code but can contribute to electrical issues that might affect the mist switch circuit.
9. Is the B2390 code a common issue in Chrysler vehicles?
It’s not a very common code but can occur in vehicles with aging electrical components or after exposure to water or corrosion.
10. Do I need a professional to fix the B2390 code?
While some fixes, like checking connectors, can be done by DIYers, diagnosing and repairing electrical circuits often requires professional tools and expertise.
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