AutoCodes – Generic – B218B

B218B Code - Ignition Run/Start 1 Control Circuit Overcurrent

Quick Answer

The Totally Integrated Power Module (TIPM) monitors the Ignition Run/Start 1 Control 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
B218B indicates Ignition Run/Start 1 Control Circuit Overcurrent.
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 3,362
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 25, 2019
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Code B218B Description

The Totally Integrated Power Module (TIPM) monitors the Ignition Run/Start 1 Control Circuit. The Diagnostic Trouble Code (DTC) is set when the TIPM detects an Over current condition on the Fused Ignition Switch Output (Run-Start) circuit.
OBDII Code B218B - Ignition Run/Start 1 Control Circuit Overcurrent - AutoCodes.com
B218B Code - Ignition Run/Start 1 Control Circuit Overcurrent

What are the Possible Causes of the DTC B218B?

  • Faulty Ignition Switch
  • Ignition Switch harness is open or shorted
  • Ignition Switch circuit poor electrical connection
  • Faulty Totally Integrated Power Module (TIPM)

How to Fix the DTC B218B?

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 B218B 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 B218B code?

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Need Help with the Code?

Get the B218B code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

  • B218B Chrysler β€” Ignition Run/Start 1 Control Circuit Overcurrent
  • B218B Dodge β€” Ignition Run/Start 1 Control Circuit Overcurrent
  • B218B Jeep β€” Ignition Run/Start 1 Control Circuit Overcurrent
  • B218B RAM β€” Ignition Run/Start 1 Control Circuit Overcurrent
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 B218B Code

1. What are the common symptoms of OBDII code B218B (Ignition Run/Start 1 Control Circuit Overcurrent)?

The common symptoms include difficulty starting the vehicle, engine stalling, and the check engine light illuminating on the dashboard.

2. What are the possible causes of OBDII code B218B?

Possible causes of this code include a faulty ignition switch, a short circuit in the ignition run/start 1 control circuit, or a malfunctioning engine control module (ECM).

3. How can I diagnose OBDII code B218B?

Diagnosing this code involves using a scan tool to retrieve the code, checking the wiring and connectors in the ignition run/start 1 control circuit, and testing the ignition switch for proper operation.

4. Can OBDII code B218B cause any safety concerns?

While this code may not directly pose a safety risk, it can lead to unexpected stalling of the vehicle, which could be dangerous in certain driving conditions. It is important to address the issue promptly.

5. How can I repair OBDII code B218B?

Repairing this code may involve replacing a faulty ignition switch, repairing any damaged wiring in the control circuit, or reprogramming the engine control module (ECM) if necessary.

6. Is it safe to continue driving with OBDII code B218B present?

It is not recommended to continue driving with this code present, as it can lead to potential issues such as stalling or difficulty starting the vehicle. It is best to address the problem as soon as possible.

7. Can a DIY enthusiast fix OBDII code B218B at home?

While some aspects of diagnosing and repairing this code may be possible for DIY enthusiasts with the right tools and knowledge, it is recommended to consult a professional technician for an accurate diagnosis and proper repair.

8. How much does it cost to fix OBDII code B218B at a repair shop?

The cost of fixing this code can vary depending on the underlying cause of the issue, the labor rates of the repair shop, and the cost of any replacement parts needed. It is advisable to obtain a quote from a trusted repair shop.

9. Are there any preventive measures to avoid OBDII code B218B in the future?

Regular maintenance of the ignition system, checking for any signs of wiring damage, and promptly addressing any issues with the ignition system can help prevent the occurrence of this code in the future.

10. Can OBDII code B218B be intermittent?

Yes, this code can sometimes be intermittent, meaning it may come and go sporadically. It is important to address the underlying issue even if the code temporarily disappears to prevent potential problems in the future.

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