AutoCodes – Generic – C212B

C212B Code - Sensor Supply 3 Voltage

Quick Answer

The Air Suspension Control Module (ASCM) detects when the 5 Volt Sensor Supply 3 circuit has a short to ground or battery while the ignition is in the Run position. Common causes include Faulty Sensor Supply 2, Sensor Supply 2 harness is open or shorted, Sensor Supply 2 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
C212B indicates Sensor Supply 3 Voltage.
Common causes
Common causes include Faulty Sensor Supply 2, Sensor Supply 2 harness is open or shorted, Sensor Supply 2 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 1,144
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code C212B Description

The Air Suspension Control Module (ASCM) detects when the 5 Volt Sensor Supply 3 circuit has a short to ground or battery while the ignition is in the Run position.
OBDII Code C212B - Sensor Supply 3 Voltage - AutoCodes.com
C212B Code - Sensor Supply 3 Voltage

What are the Possible Causes of the DTC C212B?

  • Faulty Sensor Supply 2
  • Sensor Supply 2 harness is open or shorted
  • Sensor Supply 2 circuit poor electrical connection
  • Faulty Air Suspension Control Module (ASCM)

How to Fix the DTC C212B?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C212B 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.

Need more information about the C212B code?

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Need Help with the Code?

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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 C212B Code

1. What are common symptoms of OBDII code C212B (Sensor Supply 3 Voltage)?

- Common symptoms include issues with the vehicle's fuel efficiency, rough idling, and engine misfires.

2. What are the possible causes of OBDII code C212B?

- Possible causes may include a faulty sensor, damaged wiring or connectors, or issues with the vehicle's power supply.

3. How can I diagnose the OBDII code C212B?

- Diagnosis typically involves using an OBDII scanner to retrieve the fault code and inspecting the sensor, wiring, and connectors for any visible damage.

4. How can I repair OBDII code C212B?

- Repair methods may include replacing the faulty sensor, repairing damaged wiring or connectors, or addressing any power supply issues identified during diagnosis.

5. Can I drive my vehicle with OBDII code C212B?

- It is not recommended to drive your vehicle with this code present, as it can lead to further engine issues and potential safety concerns.

6. Is it possible to clear OBDII code C212B without making any repairs?

- Clearing the code without addressing the underlying issue is not advisable, as the problem may persist and cause more significant damage over time.

7. How do I prevent OBDII code C212B from recurring?

- Regular maintenance, such as checking and replacing sensors as needed, inspecting wiring for damage, and ensuring a stable power supply, can help prevent the code from reappearing.

8. Can a DIY enthusiast repair OBDII code C212B?

- Depending on the skill level and tools available, some DIY enthusiasts may be able to address this code by following repair guides and utilizing proper diagnostic equipment.

9. Are there any recalls related to OBDII code C212B?

- It is recommended to check with the vehicle manufacturer or the National Highway Traffic Safety Administration (NHTSA) for any recalls related to this specific OBDII code.

10. How long does it typically take to repair OBDII code C212B?

- The repair time can vary depending on the exact cause of the code, but it may take anywhere from a few hours to a full day to diagnose and fix the issue.

Discuss the causes and fixes for C212B OBDII Code

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