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Engine-Codes – Generic – P1C70

P1C70 Code - SCR Error Detected Engine Disabled

Quick Answer

The P1C70 code indicates that an SCR (Selective Catalytic Reduction) error has been detected, resulting in the engine being disabled. Common causes include Faulty SCR system components (such as the SCR catalyst or dosing module), Low AdBlue fluid level, Contaminated AdBlue fluid. 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
P1C70 indicates SCR Error Detected Engine Disabled.
Common causes
Common causes include Faulty SCR system components (such as the SCR catalyst or dosing module), Low AdBlue fluid level, Contaminated AdBlue fluid.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 13, 2024
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Code P1C70 Description

The P1C70 code indicates that an SCR (Selective Catalytic Reduction) error has been detected, resulting in the engine being disabled. The SCR system is responsible for reducing harmful emissions by injecting a urea-based solution (AdBlue) into the exhaust stream to convert nitrogen oxides into harmless nitrogen and water vapor. When this system malfunctions, it can lead to increased emissions and decreased fuel efficiency.

OBDII Code P1C70 - SCR Error Detected Engine Disabled
P1C70 Code - SCR Error Detected Engine Disabled

Common Causes of P1C70

  1. Faulty SCR system components (such as the SCR catalyst or dosing module)
  2. Low AdBlue fluid level
  3. Contaminated AdBlue fluid
  4. Wiring or connection issues in the SCR system
  5. Software glitches in the engine control module

Symptoms of P1C70

  1. Check Engine Light illuminated
  2. Reduced engine power
  3. Increased fuel consumption
  4. Difficulty starting the engine
  5. Exhaust emitting black smoke

How to Fix P1C70

  1. Diagnose the specific cause of the SCR error by using a diagnostic scanner to retrieve the fault codes and perform system tests.
  2. Check the AdBlue fluid level and quality, topping up or replacing it if necessary.
  3. Inspect the SCR system components for damage or contamination, replacing any faulty parts.
  4. Clear the fault codes and reset the engine control module to see if the issue persists.
  5. Test drive the vehicle to ensure that the SCR system is functioning properly and that the error code does not return.

Cost to Fix P1C70

The cost of repairing a P1C70 code can vary depending on the specific cause of the issue. On average, the repair costs for SCR system errors can range from $200 to $1000, including parts and labor. However, it's important to note that diagnostic time and labor rates at auto repair shops can vary significantly based on factors such as location, vehicle make and model, and engine type. It's recommended to check with local repair shops for a more accurate estimate.

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Code P1C70 Information for Specific Makes

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 P1C70 Code

1. What are the common symptoms of OBDII code P1C70 (SCR Error Detected Engine Disabled)?

- Common symptoms include the engine being disabled, reduced engine power, and possible warning lights on the dashboard related to the SCR system.

2. What are some possible causes of OBDII code P1C70?

- Causes of this code may include a malfunctioning SCR (Selective Catalytic Reduction) system, faulty NOx (Nitrogen Oxide) sensor, poor quality DEF (Diesel Exhaust Fluid), or wiring issues.

3. How can I diagnose the OBDII code P1C70?

- Diagnosing this code typically involves using an OBDII scanner to read the code and inspecting the SCR system components, NOx sensor, and DEF quality. Detailed troubleshooting may be required.

4. What should I do if my engine is disabled due to OBDII code P1C70?

- If your engine is disabled, it is recommended to safely pull over, turn off the engine, and have the vehicle towed to a qualified mechanic for diagnosis and repair.

5. Can I drive my vehicle with the OBDII code P1C70 present?

- It is not recommended to drive your vehicle with this code present, especially if the engine is disabled. Continuing to drive could potentially cause further damage to the SCR system.

6. Are there any DIY repair tips for fixing OBDII code P1C70?

- DIY repair for this code is not recommended due to the complexity of the SCR system. It is best to have a professional mechanic diagnose and repair the issue.

7. How much does it typically cost to repair OBDII code P1C70?

- The cost of repairing this code can vary depending on the specific cause of the issue. Repair costs may include parts replacement, labor, and possibly resetting the engine control module.

8. Can a faulty DEF quality trigger OBDII code P1C70?

- Yes, poor quality or contaminated DEF can potentially trigger this code as it can affect the proper functioning of the SCR system and NOx sensor.

9. Is OBDII code P1C70 a serious issue that needs immediate attention?

- Yes, this code is considered serious as it can lead to engine disablement and increased emissions if not addressed promptly. Seeking professional diagnosis and repair is recommended.

10. How can I prevent OBDII code P1C70 from recurring in the future?

- To prevent the recurrence of this code, it is important to use high-quality DEF, maintain the SCR system components, and address any underlying issues promptly to ensure proper functioning of the system.

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