AutoCodes – Scion – C1416 Scion

C1416 Scion Code - Rear Speed Sensor Left Output Malfunction

Quick Answer

The speed sensor detects the wheel speed and sends the appropriate signals to the Skid Control ECU (Brake Actuator Assembly). Common causes include Faulty Rear Speed Sensor Left, Rear Speed Sensor Left Rotor (Rear Axle Hub and Bearing Assembly Left), Rear Speed Sensor Left harness is open or shorted. 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: C1416 Scion indicates Rear Speed Sensor Left Output Malfunction.
Common causes: Common causes include Faulty Rear Speed Sensor Left, Rear Speed Sensor Left Rotor (Rear Axle Hub and Bearing Assembly Left), Rear Speed Sensor Left harness is open or shorted.
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 1,324

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 Jan 20, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code C1416 Scion Description

The speed sensor detects the wheel speed and sends the appropriate signals to the Skid Control ECU (Brake Actuator Assembly). These signals are used for Anti-Lock Brake System (ABS) control. Speed sensor rotors have rows of alternating N and S magnetic poles, and their magnetic fields change when the rotors turn. Each speed sensor detects that magnetic change and sends a pulse signal to the Skid Control ECU (Brake Actuator Assembly).

OBDII Code C1416 Scion - Rear Speed Sensor Left Output Malfunction - AutoCodes.com — C1416 Scion Code - Rear Speed Sensor Left Output Malfunction

What does this mean?

What are the Possible Causes of the DTC C1416 Scion?

Faulty Rear Speed Sensor Left
Rear Speed Sensor Left Rotor (Rear Axle Hub and Bearing Assembly Left)
Rear Speed Sensor Left harness is open or shorted
Rear Speed Sensor Left circuit poor electrical connection

How to Fix the DTC C1416 Scion?

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 does this mean?

Code Tech Notes

Because the Rear Axle Hub and Bearing Assembly cannot be disassembled, if the Rear Speed Sensor needs replacement, replace the Rear Axle Hub and Bearing Assembly.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1416 Scion 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 C1416 Scion Code

1. What does the OBDII code C1416 mean on a Scion?

C1416 indicates a "Rear Speed Sensor Left Output Malfunction," meaning the left rear wheel speed sensor is not providing accurate data to the ABS system.

2. What are the symptoms of code C1416 in a Scion?

Common symptoms include the ABS warning light turning on, reduced braking performance, and possibly erratic speedometer readings.

3. What causes the C1416 code in a Scion?

The code can be caused by a faulty left rear wheel speed sensor, damaged wiring or connectors, a malfunctioning ABS control module, or debris blocking the sensor.

4. Can I drive my Scion with the C1416 code?

While the vehicle may still be drivable, the ABS system may not function properly, which can compromise braking safety, especially in slippery conditions.

5. How do I diagnose the C1416 code on my Scion?

Start by visually inspecting the left rear wheel speed sensor, its wiring harness, and connectors. Use a multimeter to test sensor resistance and a scan tool to monitor live ABS sensor data.

6. How is the C1416 code fixed in a Scion?

Repairs may involve cleaning or replacing the left rear wheel speed sensor, repairing damaged wiring, or replacing the ABS module if necessary.

7. How much does it cost to fix a C1416 code in a Scion?

Replacing a wheel speed sensor typically costs $100 to $300, depending on labor and part prices. Wiring repairs or ABS module replacement may cost more.

8. Can a dirty wheel hub cause the C1416 code on a Scion?

Yes, dirt, debris, or rust in the wheel hub can interfere with the wheel speed sensor's readings, triggering the code.

9. Will clearing the C1416 code solve the problem?

Clearing the code without addressing the underlying issue will only temporarily turn off the ABS light. The code will reappear until the root cause is fixed.

10. How can I prevent the C1416 code from recurring in my Scion?

Regularly inspect the wheel speed sensors and clean the wheel hubs. Ensure wiring and connectors are secure and free of corrosion or damage.