AutoCodes – Toyota – C1621 Toyota

C1621 Toyota Code - Back Camera Power Supply Failure

Quick Answer

This Diagnostic Trouble Code (DTC) is stored if the television camera assembly judges that the signals or signal lines between the Navigation Receiver Assembly (for Navigation Receiver Type) or Radio and Display Receiver Assembly (for Radio and Display Type) and the Television Camera Assembly are not normal as a result of its self-check. Common causes include Faulty Television Camera Assembly, Television Camera Assembly harness is open or shorted, Television Camera 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
C1621 Toyota indicates Back Camera Power Supply Failure.
Common causes
Common causes include Faulty Television Camera Assembly, Television Camera Assembly harness is open or shorted, Television Camera 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 1,839
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Feb 26, 2023
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Code C1621 Toyota Description

This Diagnostic Trouble Code (DTC) is stored if the television camera assembly judges that the signals or signal lines between the Navigation Receiver Assembly (for Navigation Receiver Type) or Radio and Display Receiver Assembly (for Radio and Display Type) and the Television Camera Assembly are not normal as a result of its self-check.
OBDII Code C1621 Toyota - Back Camera Power Supply Failure - AutoCodes.com
C1621 Toyota Code - Back Camera Power Supply Failure

What are the Possible Causes of the DTC C1621 Toyota?

  • Faulty Television Camera Assembly
  • Television Camera Assembly harness is open or shorted
  • Television Camera Assembly circuit poor electrical connection
  • Faulty Navigation Receiver Assembly (for Navigation Receiver Type)
  • Faulty Radio and Display Receiver Assembly (for Radio and Display Type)

How to Fix the DTC C1621 Toyota?

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 C1621 Toyota 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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Information for Specific Toyota Models

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 C1621 Toyota Code

1. What does the OBDII code C1621 mean for a Toyota vehicle?

The C1621 code indicates a "Back Camera Power Supply Failure," meaning the rearview camera is not receiving proper power.

2. What are the common symptoms of the C1621 code in a Toyota?

Common symptoms include a blank or distorted rearview camera display, backup camera not turning on, or an error message on the infotainment screen.

3. What can cause the C1621 Back Camera Power Supply Failure code?

Possible causes include a blown fuse, damaged wiring, a faulty rearview camera, a malfunctioning power supply circuit, or an issue with the ECU.

4. How can I diagnose the C1621 code in my Toyota?

Start by checking the fuse for the backup camera, inspecting wiring and connections for damage, and testing the voltage at the camera's power supply.

5. Can a faulty rearview camera trigger the C1621 code?

Yes, a damaged or malfunctioning rearview camera can cause a loss of power supply and trigger the C1621 code.

6. Is it safe to drive with the C1621 code active?

Yes, the vehicle is safe to drive, but the rearview camera may not function properly, reducing visibility when reversing.

7. How can I fix the C1621 Back Camera Power Supply Failure code?

Repairs may include replacing a blown fuse, repairing damaged wiring, replacing the rearview camera, or addressing issues in the power supply circuit.

8. How much does it cost to fix the C1621 code in a Toyota?

The repair cost can range from $50 for a fuse replacement to $500 or more if the camera or wiring needs replacement.

9. Can software issues cause the C1621 code?

While rare, a malfunction in the vehicle's ECU or infotainment system software can potentially contribute to this error.

10. Will clearing the C1621 code fix the problem?

Clearing the code may temporarily remove the warning, but the underlying issue needs to be resolved to prevent the code from returning.

Discuss the causes and fixes for C1621 Toyota OBDII Code

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