AutoCodes – Jeep – B212C Jeep

B212C Jeep Code - Ignition Run/Start Input Circuit Open

Quick Answer

The Occupant Classification Module (OCM) monitors the Ignition Run/Start Input Circuit. Common causes include Faulty Ignition Switch, Ignition Switch harness is open or shorted, Ignition 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: B212C Jeep indicates Ignition Run/Start Input Circuit Open.
Common causes: Common causes include Faulty Ignition Switch, Ignition Switch harness is open or shorted, Ignition 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.

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Code Popularity 13,177

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 19, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B212C Jeep Description

The Occupant Classification Module (OCM) monitors the Ignition Run/Start Input Circuit. The OCM sets the OBDII codes if the voltage on the Fused Ignition Switch Output (Run-Start) circuit drops below 6.0 volts.

OBDII Code B212C Jeep - Ignition Run/Start Input Circuit Open - AutoCodes.com — B212C Jeep Code - Ignition Run/Start Input Circuit Open

What does this mean?

What are the Possible Causes of the DTC B212C Jeep?

Faulty Ignition Switch
Ignition Switch harness is open or shorted
Ignition Switch circuit poor electrical connection
Faulty Occupant Classification Module (OCM)
Faulty Occupant Restraint Controller (ORC)

How to Fix the DTC B212C 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 B212C 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 B212C Jeep code?

Need more information on how to fix the B212C Jeep code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B212C Jeep code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B212C Jeep Code

1. What are the common symptoms of OBDII code B212C (Jeep) Ignition Run/Start Input Circuit Open?

The common symptoms include difficulty starting the vehicle, intermittent stalling, and the engine not turning over.

2. What can cause the OBDII code B212C (Jeep) Ignition Run/Start Input Circuit Open?

Possible causes include a faulty ignition switch, damaged wiring or connectors in the ignition circuit, or a defective ignition lock cylinder.

3. How can I diagnose the OBDII code B212C (Jeep) Ignition Run/Start Input Circuit Open?

Diagnosis involves checking the ignition switch for proper functionality, inspecting the wiring and connectors for any damage, and testing the ignition lock cylinder for defects.

4. Is it safe to continue driving with the OBDII code B212C (Jeep) Ignition Run/Start Input Circuit Open?

It is not recommended to continue driving with this code, as it can lead to starting issues and potential stalling, posing a safety risk.

5. Can I repair the OBDII code B212C (Jeep) Ignition Run/Start Input Circuit Open myself?

Depending on your mechanical skills and knowledge, you may be able to repair this issue yourself by replacing the faulty ignition switch, repairing damaged wiring, or fixing the ignition lock cylinder.

6. Are there any DIY tips for fixing the OBDII code B212C (Jeep) Ignition Run/Start Input Circuit Open?

DIY tips include carefully inspecting all related components, using a multimeter to test for continuity in the circuit, and following a repair manual specific to your Jeep model.

7. How much does it cost to repair the OBDII code B212C (Jeep) Ignition Run/Start Input Circuit Open?

The cost of repair can vary depending on the specific cause of the issue, but it may range from $100 to $300 for parts and labor at a repair shop.

8. Can the OBDII code B212C (Jeep) Ignition Run/Start Input Circuit Open be triggered by a loose battery connection?

While a loose battery connection can cause starting issues, it is not a direct cause of this particular OBDII code. It is recommended to check and secure all battery connections during diagnosis.

9. Will resetting the OBDII code B212C (Jeep) Ignition Run/Start Input Circuit Open make the issue go away?

Resetting the code may temporarily clear the error, but if the underlying issue is not addressed, the code is likely to reappear once the problem is detected again.

10. How long does it typically take to repair the OBDII code B212C (Jeep) Ignition Run/Start Input Circuit Open?

The repair time can vary depending on the cause of the issue and the complexity of the repair. It may take anywhere from 1 to 3 hours for a professional mechanic to diagnose and fix the problem.