[SOLVED] Chrysler B1A73 Code: Chrysler Passive Entry Antenna Failure Fix

The OBD code B1A73 for Chrysler indicates a fault with the Passive Entry Antenna 3 system.

Symptoms include the Engine Light being ON.

This code is commonly caused by issues like a faulty Passive Entry Antenna 3 or poor electrical connections.

While not a critical issue, it should be addressed promptly.

To fix it, inspect the wiring harness and connectors for any damage or corrosion.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

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The specific fault code B1A73 in a Chrysler indicates a fault in the driver’s door ajar switch circuit.

  • Symptoms: Service Engine Soon Warning Light ON.
  • Possible nostart condition.
  • Intermittent stalling while driving.
  • Engine may not crank.

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Possible triggers for Chrysler fault code B1A73 include faulty steering column control module or wiring issues.

  • B1A73 can be caused by a faulty Passive Entry Antenna 3.
  • A Passive Entry Antenna 3 harness that is open or shorted.
  • A Passive Entry Antenna 3 circuit with a poor electrical connection.
  • A faulty Passive Entry Module (PEM).
  • A faulty Radio Frequency Hub (RF Hub) Module.

Address the faulty Occupant Restraint Controller (ORC) module to resolve Chrysler B1A73 code.

  • To fix the Chrysler OBDII code B1A73, start by reviewing the possible causes mentioned above.
  • Visually examine the wiring harness and connectors associated with 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, proceed to check the sensor or module related to the code for proper operation.
  • Perform any necessary repairs or replacements on the faulty sensor or module.
  • Finally, clear the fault code using a diagnostic scan tool and test drive the vehicle to ensure the issue has been resolved.

The repair for Chrysler fault code B1A73 may involve replacing the passengerside seat belt retractor.

The cost to diagnose and fix the Chrysler OBD code B1A73 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. The final cost may vary based on shop rates and the complexity of the repair.

The Chrysler fault code B1A73 relates to the ambient temperature sensor circuit being open or shorted.

Chrysler OBD code B1A73 indicates a fault with the Driver Seatbelt Pretensioner 1 deployment loop.

This code is triggered by the Occupant Restraint Controller (ORC) module based on diagnostic signals received from the seatbelt pretensioner circuit.

The ORC monitors the resistance and continuity of the seatbelt pretensioner circuit to ensure proper deployment in the event of a collision.

If the circuit is open or shorted, the B1A73 code is set, indicating a fault that needs to be diagnosed and repaired to ensure the proper operation of the seatbelt pretensioner system.

Detailed information on Chrysler fault code B1A73, including symptoms, causes, and repair procedures.

To diagnose and fix OBDII code Chrysler B1A73, start by checking the Transmission Control Module (TCM) power and ground using a multimeter.

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

If communication issues are detected, reprogramming or reflashing the TCM may be necessary.

Additionally, visually inspect the wiring harness and connectors for any damage, and ensure connector pins are not broken, bent, pushed out, or corroded.

This thorough inspection will help identify and address the root cause of the B1A73 fault code.

1. What does OBD code B1A73 indicate in a Chrysler vehicle?

OBD code B1A73 in a Chrysler indicates an issue with the Passive Entry Antenna 3 circuit. Check for faults in the antenna, harness, or related modules.

2. What are the common symptoms associated with Chrysler OBD code B1A73?

Common symptoms of Chrysler OBD code B1A73 include Engine Light ON. Possible causes are faulty Passive Entry Antenna 3, harness issues, or faulty modules. Inspect and repair wiring connections.

3. How can I diagnose and repair OBD code B1A73 in my Chrysler vehicle?

Diagnose OBD code B1A73 in Chrysler: Symptoms Engine Light ON. Causes Faulty Passive Entry Antenna 3, harness issues. Fix Inspect wiring, connectors for damage or corrosion.

Chrysler b1a73 error fault code explained

If your Chrysler is displaying OBDII code b1a73, you may experience issues with the passenger seat belt switch.

This could be caused by a faulty seat belt switch sensor, wiring problems, or a malfunction in the restraint control module.

To address Chrysler OBDII code b1a73, start by inspecting the wiring harness and connectors related to the passenger seat belt switch.

Test the seat belt switch sensor for proper operation and consider replacing it if necessary.

Additionally, check the restraint control module for any faults that may be triggering the code.

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