AutoCodes – Dodge – P1C55 Dodge

P1C55 Dodge Code - NOX Sensor Intermittent Bank 1 Sensor 1

Quick Answer

The aftertreatment system is equipped with two Nox Sensors and modules. Common causes include Exhaust Leaks, Engine Misfire, Excessive Oil Consumption. 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: P1C55 Dodge indicates NOX Sensor Intermittent Bank 1 Sensor 1.
Common causes: Common causes include Exhaust Leaks, Engine Misfire, Excessive Oil Consumption.
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 11,795

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 Mar 15, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1C55 Dodge Description

The aftertreatment system is equipped with two Nox Sensors and modules. The upstream NOx Sensor 1/1 is located on the Turbocharger elbow downpipe and is permanently connected to a corresponding Nox Sensor Module mounted to the hot side of the engine block. The downstream NOx Sensor 1/2 is located at the outlet of the SCR Catalyst and is permanently connected to a corresponding Nox Sensor Module which is mounted on the right frame rail. The NOx Sensors and NOx Sensor Modules are calibrated to each other and must be replaced as an assembly. The two NOx Sensor and Module assemblies are not interchangeable. The NOx Sensor Modules are smart devices and communicate with the Powertrain Control Module (PCM) over the J1939 Data Link. The NOx Sensor Modules perform their own internal diagnostics and report malfunctions back to the PCM. The NOx Sensors are used to monitor the efficiency of the SCR Catalyst and dosing system. The PCM will illuminate the Malfunction Indicator Lamp (MIL) after the diagnostic runs and fails in two consecutive drive cycles. The PCM will turn off the MIL immediately after the monitor runs and passes.

OBDII Code P1C55 Dodge - NOX Sensor Intermittent Bank 1 Sensor 1 - AutoCodes.com — P1C55 Dodge Code - NOX Sensor Intermittent Bank 1 Sensor 1

What does this mean?

What are the Possible Causes of the DTC P1C55 Dodge?

Exhaust Leaks
Engine Misfire
Excessive Oil Consumption
EGR System Leak
Faulty NOX Sensor Bank 1 Sensor 1
NOX Sensor Bank 1 Sensor 1 harness is open or shorted
NOX Sensor Bank 1 Sensor 1 circuit poor electrical connection

How to Fix the DTC P1C55 Dodge?

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 P1C55 Dodge 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.

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Need Help with the Code?

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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 P1C55 Dodge Code

1. What are the common symptoms of an intermittent NOx sensor issue on Bank 1 Sensor 1 in a Dodge vehicle?

- Common symptoms include poor engine performance, decreased fuel efficiency, rough idling, and the illumination of the Check Engine light.

2. What are the possible causes of an intermittent NOx sensor fault on Bank 1 Sensor 1 in a Dodge vehicle?

- Potential causes include a faulty NOx sensor, wiring issues, sensor contamination, exhaust leaks, or issues with the engine control module.

3. How can I diagnose an intermittent NOx sensor problem on Bank 1 Sensor 1 in my Dodge vehicle?

- Diagnosis typically involves using an OBDII scanner to retrieve the P1C55 code, inspecting the sensor and its wiring for damage, and performing tests to determine the root cause of the intermittent issue.

4. Is it safe to continue driving with an intermittent NOx sensor fault on Bank 1 Sensor 1 in a Dodge vehicle?

- It is not recommended to drive with a faulty NOx sensor, as it can lead to increased emissions, reduced engine performance, and potential damage to other components. Prompt repair is advised.

5. Can I reset the Check Engine light after fixing the intermittent NOx sensor issue on Bank 1 Sensor 1 in my Dodge vehicle?

- Yes, once the underlying issue is resolved, the Check Engine light can be reset using an OBDII scanner or by disconnecting the vehicle's battery for a short period.

6. Are there any DIY repair tips for addressing an intermittent NOx sensor fault on Bank 1 Sensor 1 in a Dodge vehicle?

- While basic inspections and sensor cleaning can be done by DIY enthusiasts, complex repairs or sensor replacements may require professional assistance to ensure proper installation and calibration.

7. How much does it typically cost to repair an intermittent NOx sensor issue on Bank 1 Sensor 1 in a Dodge vehicle?

- Repair costs can vary depending on the extent of the issue, the need for sensor replacement, and labor charges. On average, repair costs can range from $200 to $500.

8. Can a faulty NOx sensor affect the vehicle's emissions and compliance with environmental regulations?

- Yes, a malfunctioning NOx sensor can lead to increased emissions of harmful gases, potentially causing the vehicle to fail emissions tests and impacting its compliance with environmental regulations.

9. How long does it usually take to repair an intermittent NOx sensor fault on Bank 1 Sensor 1 in a Dodge vehicle?

- Repair times can vary based on the specific issue and the availability of parts. In general, repairs for a NOx sensor fault can be completed within a few hours to a day.

10. Is the intermittent NOx sensor fault on Bank 1 Sensor 1 a common issue in Dodge vehicles, and are there any known recalls related to this problem?

- While NOx sensor issues can occur in Dodge vehicles, they may not be as common as other problems. It's recommended to check with a Dodge dealership or the National Highway Traffic Safety Administration (NHTSA) for any relevant recalls related to this specific fault.