[SOLVED] Jeep B218B Code: Fix Overcurrent In Ignition Run/Start Circuit

The OBD code B218B for Jeep indicates an issue with the Ignition Switch Input Accessory Circuit Low.

This affects the Totally Integrated Power Module (TIPM).

Symptoms include the Engine Light being ON.

The cause could be a faulty ignition switch, open/shorted harness, or poor electrical connection.

It’s a moderate issue.

To fix, inspect wiring and connectors for damage, and check connector pins for any issues.

Repair Importance Level	10.0 (Out of 10)
Estimated Repair Time	Approximately 1.0 hour
Repair Difficulty Level	10.0 (Out of 10)

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Symptoms of the Jeep b218b OBD Code

The Jeep B218B fault code typically triggers when there is an issue with the driver’s door key cylinder.

Symptoms: Service Engine Soon Warning Light ON.
Possible nostart condition.
Intermittent stalling while driving.
Engine may run rough or have reduced power.
Difficulty starting the vehicle.

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Causes of the Jeep b218b OBD Code

Possible triggers for Jeep fault code B218B include issues with the occupant classification system.

B218B can be caused by a Faulty Ignition Switch.
An open or shorted Ignition Switch harness.
A poor electrical connection in the Ignition Switch circuit.
A Faulty Totally Integrated Power Module (TIPM).

Fixing Jeep Error Code b218b Step By Step

To resolve fault code Jeep B218B, inspect and repair the passenger door key cylinder switch circuit.

To fix the Jeep OBDII code B218B, start by reviewing the possible causes mentioned above.
Visually examine the wiring harness and connectors related to the code.
Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
If no visible issues are found, consider resetting the module that is associated with the code.
Perform a software update on the module if necessary.
Replace the module if resetting and updating do not resolve the issue.
Conduct a thorough test drive to ensure the problem is resolved.

Cost Of Fixing Jeep b218b Fault Code

The repair for Jeep fault code B218B may involve replacing the Occupant Restraint Controller module.

The cost to diagnose and fix Jeep OBD code B218B depends on the estimated 1. 0hour repair time.

Labor rates usually range from $75 to $150 per hour, so the total cost could be between $75 and $150, depending on shop rates and the complexity of the repair.

Details of the Jeep b218b OBD Code

Jeep fault code B218B relates to the Sunroof Control Switch Circuit Performance.

Jeep OBD code B218B means that the Driver Seatbelt Pretensioner 2 Deployment Control Circuit has a performance issue.

This code is triggered by the Occupant Restraint Controller (ORC) module based on the feedback it receives from the driver seatbelt pretensioner 2 deployment circuit.

The ORC monitors the deployment circuits for any faults or malfunctions to ensure proper operation in the event of a collision.

Mechanic’s Tech Notes

Detailed information on resolving Jeep fault code B218B for the Occupant Restraint Controller is provided.

To diagnose OBDII code B218B in a Jeep, start by checking the Transmission Control Module (TCM) power and ground using a multimeter.

Verify TCM communication over the Controller Area Network (CAN) using a scan tool.

If the TCM does not respond, reprogramming or reflashing may be necessary.

Visually inspect the wiring harness and connectors for any damage, focusing on broken, bent, or corroded pins.

Ensure all connections are secure.

If the issue persists, consider consulting a professional for further diagnostics or TCM replacement.

FAQ

1. What does OBD code B218B mean in a Jeep vehicle?

OBD code B218B in a Jeep means an issue with the Ignition Switch circuit. Check for faults in the switch, harness, or TIPM. Inspect wiring and connectors for damage.

2. What are the common symptoms associated with code B218B in a Jeep?

Common symptoms for Jeep code B218B include Engine Light ON. Causes may be a faulty Ignition Switch, harness issues, or a faulty TIPM. Inspect wiring and connectors for damage.

3. How can I diagnose and fix OBD code B218B in my Jeep vehicle?

Diagnose OBD code B218B in Jeep: Symptoms Engine Light ON. Causes Faulty Ignition Switch, harness issues, TIPM. Fix Inspect wiring, connectors for damage.

Wrap Up

If your Jeep is displaying OBD code b218b, you may experience issues with the Park Assist System, such as faulty ultrasonic sensors, damaged wiring, or a low sensor battery voltage.

These can lead to inaccurate distance readings or complete system failure.

To address Jeep OBD code b218b, start by inspecting the ultrasonic sensors and their wiring for any visible damage.

Test the sensor battery voltage and connections for proper operation.

Replace any faulty sensors or repair damaged wiring to restore the Park Assist System’s functionality.