[SOLVED] Dodge P0051 Code: Quick Fix For O2 Sensor Heater

OBD code P0051 for Dodge indicates an issue with the Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 circuit.

Symptoms include the Engine Light being ON.

The problem is often caused by a faulty sensor, wiring harness issues, or a problem with the Engine Control Module (ECM).

While not an emergency, it should be addressed promptly to prevent potential performance issues.

A possible fix involves inspecting and repairing any damaged wiring or connectors related to the sensor.

Repair Importance Level	6.67 (Out of 10)
Estimated Repair Time	Approximately 1.0 hour
Repair Difficulty Level	6.67 (Out of 10)

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Symptoms of the Dodge p0051 OBD Code

The Dodge P0051 fault code indicates an issue with the oxygen sensor heater control circuit low voltage.

Symptoms: Engine Light ON.
Possible decrease in fuel efficiency.
Rough idling.
Hesitation during acceleration.

Causes of the Dodge p0051 OBD Code

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P0051 in Dodge indicates an issue with the oxygen sensor heater control circuit low voltage.

P0051 can be caused by a faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1.
A Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 harness that is open or shorted.
A poor electrical connection in the Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 circuit.
A blown Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 fuse.
Or a faulty Engine Control Module (ECM).

Fixing Dodge Error Code p0051 Step By Step

Replace the faulty oxygen sensor in bank 2 sensor 1 on the Dodge to address code P0051.

To fix the Dodge OBDII code p0051, start by reviewing the possible causes mentioned above.
Visually examine the corresponding wiring harness and connectors for any damage.
Inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
If no issues are found with the wiring and connectors, the next step would be to replace the oxygen sensor (bank 2 sensor 1) that is causing the fault code.
After replacing the sensor, clear the fault code from the vehicle’s computer using a scan tool.
Finally, test drive the vehicle to ensure the code does not return, indicating a successful repair.

Cost Of Fixing Dodge p0051 Fault Code

Diagnosing and repairing fault code P0051 on a Dodge typically involves replacing the oxygen sensor.

The cost to diagnose and fix the Dodge OBD code P0051 typically ranges from $75 to $150 per hour for labor rates.

With an estimated repair time of 1. 0 hour, the general cost could be around $75 to $150, depending on shop rates and the complexity of the repair.

Details of the Dodge p0051 OBD Code

Dodge fault code P0051 indicates a problem with the oxygen sensor heater control circuit low.

Dodge OBD code P0051 means that the ECM has detected a problem with the HO2S (heated oxygen sensor) heater control circuit low voltage for sensor 1 in bank 2. This code is triggered when the ECM detects a lower than expected voltage from the heater circuit of the oxygen sensor.

The component that triggers this fault code is the HO2S (heated oxygen sensor) itself.

The HO2S is responsible for monitoring the oxygen content in the exhaust gases and providing feedback to the ECM for fuel control.

In this case, the signal or system involved is the heater circuit of the oxygen sensor.

The ECM expects to see a specific voltage level from the heater circuit to ensure proper sensor operation.

If the voltage is lower than expected, it triggers the P0051 fault code.

Mechanic’s Tech Notes

Detailed information on Dodge fault code p0051, including possible causes and diagnostic steps for resolution.

OBDII code P0051 for a Dodge typically indicates an issue with the HO2S heater control circuit low on bank 2 sensor 1. To diagnose, use a multimeter to test the heater circuit resistance and voltage.

Check for continuity and proper voltage supply to the sensor.

Inspect the wiring harness and connector for any damage, corrosion, or loose connections.

Ensure the sensor is receiving power and ground.

If all checks out, the sensor itself may be faulty and require replacement.

Clear the code after repairs and monitor for recurrence.

FAQ

1. What does OBD code P0051 mean in a Dodge vehicle?

OBD code P0051 in a Dodge means an issue with Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1. Check sensor, wiring, connectors, and ECM for faults.

2. What are the common causes of OBD code P0051 in a Dodge vehicle?

Common causes of OBD code P0051 in a Dodge vehicle include a faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 or related wiring issues.

3. How can I diagnose and fix OBD code P0051 in my Dodge vehicle?

Diagnose and fix OBD code P0051 in your Dodge by checking Bank 2 Sensor 1 wiring, connectors, and ECM for faults. Repair or replace damaged components as needed.

Wrap Up

If your Dodge is displaying OBD code P0051, you may experience poor fuel economy, rough idling, or a decrease in engine performance.

This code typically indicates a malfunction in the oxygen sensor heater control circuit for bank 2 sensor 1. Possible causes include a faulty oxygen sensor, damaged wiring, or a poor electrical connection.

To address Dodge OBD code P0051, start by inspecting the wiring harness for any signs of damage or corrosion.

Check the oxygen sensor connector for a secure fit and proper contact.

If no issues are found, consider replacing the oxygen sensor to resolve the