B2112 Chrysler Code - 5 Volt Supply Circuit Low
Quick Answer
The Front Control Module monitors the A/C Pressure Transducer 5-Volt Supply Circuit. Common causes include Faulty A/C Pressure Transducer, A/C Pressure Transducer harness is open or shorted, A/C Pressure Transducer 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
- B2112 Chrysler indicates 5 Volt Supply Circuit Low.
- Common causes
- Common causes include Faulty A/C Pressure Transducer, A/C Pressure Transducer harness is open or shorted, A/C Pressure Transducer 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 B2112 Chrysler Description
What are the Possible Causes of the DTC B2112 Chrysler?
- Faulty A/C Pressure Transducer
- A/C Pressure Transducer harness is open or shorted
- A/C Pressure Transducer circuit poor electrical connection
- Faulty Front Control Module (FCM)
How to Fix the DTC B2112 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 B2112 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 B2112 Chrysler Code
1. What does the OBDII code B2112 mean for a Chrysler vehicle?
The B2112 code indicates a "5 Volt Supply Circuit Low," meaning the 5-volt reference signal from the vehicle's powertrain control module (PCM) is below the expected range.
2. What are the common symptoms of the B2112 code?
Symptoms may include warning lights on the dash, electrical components not functioning correctly, engine performance issues, or difficulty starting the vehicle.
3. What causes the B2112 code to appear?
The code can be caused by a short to ground in the 5-volt circuit, a faulty sensor, damaged wiring, or a malfunctioning powertrain control module (PCM).
4. Can a failing sensor trigger the B2112 code?
Yes, a failing sensor that relies on the 5-volt reference signal can cause the circuit to go out of range, triggering the code.
5. How do I diagnose the B2112 code on a Chrysler?
Start by inspecting the wiring and connectors for damage or corrosion, then test the 5-volt reference signal at the affected sensors and verify the PCM's output.
6. Is the B2112 code serious?
Yes, it can be serious as it may impact the operation of critical vehicle systems. Prompt diagnosis and repair are recommended to avoid further issues.
7. Can a bad PCM cause the B2112 code?
Yes, a malfunctioning PCM can fail to provide the proper 5-volt reference signal, leading to the code being set.
8. How can I fix the B2112 code?
Repairs may involve fixing damaged wiring, replacing a faulty sensor, or, in rare cases, replacing the PCM if it's determined to be defective.
9. Can clearing the B2112 code fix the problem?
Clearing the code will not fix the underlying issue. The problem must be properly diagnosed and repaired to prevent the code from returning.
10. What tools are needed to troubleshoot the B2112 code?
You'll typically need a multimeter to check voltage, an OBDII scanner to read and clear codes, and wiring diagrams specific to your Chrysler model.
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