AutoCodes – Cadillac – P1050 Cadillac

P1050 Cadillac Code - Reductant Level Sensor Invalid Range

Quick Answer

The reductant level sensor provides discrete information about the diesel exhaust fluid quantity present in the reductant tank. Common causes include Faulty Reductant Pump and Sensor Assembly, Reductant Pump and Sensor Assembly harness is open or shorted, Reductant Pump and Sensor Assembly 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: P1050 Cadillac indicates Reductant Level Sensor Invalid Range.
Common causes: Common causes include Faulty Reductant Pump and Sensor Assembly, Reductant Pump and Sensor Assembly harness is open or shorted, Reductant Pump and Sensor Assembly 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 528

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 Jul 24, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1050 Cadillac Description

The reductant level sensor provides discrete information about the diesel exhaust fluid quantity present in the reductant tank. The sensor signal provides information to the reductant control module to determine 4 different states: FULL, OK, WARNING1, and WARNING2. The reductant control module diagnoses the sensor for open circuit, short to ground and short to voltage electrical faults. The sensor is also checked for invalid range output by determining if the float is mechanically stuck in a plausible position. The Diagnostic Trouble Code (DTC) will be set when the reductant level sensor value is outside a calibrated range.

OBDII Code P1050 Cadillac - Reductant Level Sensor Invalid Range - AutoCodes.com — P1050 Cadillac Code - Reductant Level Sensor Invalid Range

What does this mean?

What are the Possible Causes of the DTC P1050 Cadillac?

Faulty Reductant Pump and Sensor Assembly
Reductant Pump and Sensor Assembly harness is open or shorted
Reductant Pump and Sensor Assembly circuit poor electrical connection

How to Fix the DTC P1050 Cadillac?

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 P1050 Cadillac 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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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 P1050 Cadillac Code

1. What are the common symptoms of OBDII code P1050 (Cadillac) - Reductant Level Sensor Invalid Range?

The common symptoms include the check engine light turning on, decreased fuel efficiency, and potential difficulties starting the vehicle.

2. What causes the OBDII code P1050 (Cadillac) - Reductant Level Sensor Invalid Range?

The code is triggered when the reductant level sensor detects a range that is outside of the predetermined limits, often due to sensor malfunctions, wiring issues, or low reductant fluid levels.

3. How serious is the OBDII code P1050 (Cadillac) - Reductant Level Sensor Invalid Range?

While the code itself may not cause immediate harm to the vehicle, it can lead to decreased performance and potential emissions issues if left unresolved.

4. Can I continue driving with the OBDII code P1050 (Cadillac) - Reductant Level Sensor Invalid Range?

It is generally not recommended to continue driving with this code active, as it can lead to further complications and potential damage to the vehicle's emission system.

5. How do I diagnose the OBDII code P1050 (Cadillac) - Reductant Level Sensor Invalid Range?

Diagnosis typically involves checking the reductant fluid levels, inspecting the sensor and wiring for any visible issues, and using a diagnostic scanner to gather more specific data.

6. How can I repair the OBDII code P1050 (Cadillac) - Reductant Level Sensor Invalid Range?

Repair options may include replacing the reductant level sensor, repairing any damaged wiring, refilling the reductant fluid, and clearing the trouble codes.

7. Can a DIY enthusiast fix the OBDII code P1050 (Cadillac) - Reductant Level Sensor Invalid Range?

While some DIY enthusiasts may have the skills to address this issue, it is recommended to consult a professional mechanic to ensure proper diagnosis and repair.

8. How much does it cost to repair the OBDII code P1050 (Cadillac) - Reductant Level Sensor Invalid Range?

The cost of repair can vary depending on the specific cause of the issue, but it may range from $200 to $500 or more, including parts and labor.

9. Will resetting the trouble codes resolve the OBDII code P1050 (Cadillac) - Reductant Level Sensor Invalid Range?

Simply resetting the trouble codes may temporarily turn off the check engine light, but it will not fix the underlying issue causing the code to trigger.

10. How can I prevent the OBDII code P1050 (Cadillac) - Reductant Level Sensor Invalid Range from recurring?

Regularly checking and maintaining reductant fluid levels, inspecting the sensor and wiring for any signs of wear or damage, and addressing any related issues promptly can help prevent the code from recurring.