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C1272 Scion Code - Low Output Signal of Front Left Speed Sensor

- Code Popularity: 833 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC C1272 Scion?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Front Speed Sensor Left
  • Front Speed Sensor Left Rotor (Front Axle Hub Sub-Assembly Left)
  • Front Speed Sensor Left harness is open or shorted
  • Front Speed Sensor Left circuit poor electrical connection
⚠ Does your Scion have Safety Recalls? → Check here

How to Fix the DTC C1272 Scion?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

If no damage to the speed sensor tip is found during this inspection, do not replace the speed sensor.
If there is iron powder sticking to the rotor, this will result in a malfunction, so confirm that the rotor is not contaminated with foreign material before replacing the sensor.
Check the speed sensor signal after cleaning or replacement.
On most vehicles, the Front Speed Sensor Rotor is incorporated into the Front Axle Hub Sub-Assembly. If the Speed Sensor Rotor needs to be replaced, replace it together with the Front Axle Hub Sub-Assembly.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1272 Scion code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Anti-Lock Brake System (ABS) Warning Light ON
  • Engine Light ON (or Service Engine Soon Warning Light)

Code C1272 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 C1272 Scion - Low Output Signal of Front Left Speed Sensor - AutoCodes.com
C1272 Scion Code - Low Output Signal of Front Left Speed Sensor

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