C1202 Cadillac Code - Left Front Wheel Speed Sensor Input Signal Equals Zero
Quick Answer
As the wheel is rotated, the speed sensor produces an AC voltage that increases with wheel speed. Common causes include Faulty Left Front Wheel Speed Sensor, Left Front Wheel Speed Sensor harness is open or shorted, Left Front Wheel Speed Sensor 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
- C1202 Cadillac indicates Left Front Wheel Speed Sensor Input Signal Equals Zero.
- Common causes
- Common causes include Faulty Left Front Wheel Speed Sensor, Left Front Wheel Speed Sensor harness is open or shorted, Left Front Wheel Speed Sensor 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.
Code C1202 Cadillac Description
What are the Possible Causes of the DTC C1202 Cadillac?
- Faulty Left Front Wheel Speed Sensor
- Left Front Wheel Speed Sensor harness is open or shorted
- Left Front Wheel Speed Sensor circuit poor electrical connection
- Faulty Electronic Brake Control Module (EBCM)
How to Fix the DTC C1202 Cadillac?
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 C1202 Cadillac 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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Frequently Asked Questions about C1202 Cadillac Code
1. What does the OBDII code C1202 mean on a Cadillac?
C1202 indicates that the left front wheel speed sensor is not sending a signal or its input signal is reading zero, which can affect the ABS system.
2. What are the common symptoms of a C1202 code?
Common symptoms include the ABS light or traction control light illuminating, reduced traction control functionality, and sometimes irregular braking performance.
3. What causes the C1202 code to appear on a Cadillac?
This code can be caused by a faulty wheel speed sensor, damaged wiring or connectors, debris blocking the sensor, or issues with the ABS module.
4. How can I diagnose the C1202 code on my Cadillac?
Start by visually inspecting the left front wheel speed sensor and its wiring for damage or debris. Use a multimeter to test the sensor’s resistance and a scan tool to confirm the sensor’s signal.
5. Can I drive my Cadillac with a C1202 code?
While the vehicle may still be drivable, it’s not recommended to ignore the issue since the ABS and traction control systems may not function properly, increasing the risk of skidding in slippery conditions.
6. How do I fix the C1202 code on a Cadillac?
Repairs may include cleaning or replacing the left front wheel speed sensor, fixing damaged wiring or connectors, or recalibrating the ABS system using a scan tool.
7. How much does it cost to repair a C1202 code?
Repair costs can vary but typically range from $100 to $300 for parts and labor, depending on whether the sensor or wiring needs replacement.
8. Can a dirty wheel speed sensor cause the C1202 code?
Yes, dirt, debris, or rust near the left front wheel speed sensor can block its signal, triggering the C1202 code.
9. Do I need a professional to fix a C1202 code on my Cadillac?
While basic troubleshooting like checking for debris or loose connections can be done at home, more advanced diagnostics and repairs may require a professional technician.
10. Will clearing the C1202 code with a scan tool fix the problem?
Clearing the code will reset the warning light temporarily, but the issue will reoccur unless the underlying problem with the wheel speed sensor or wiring is resolved.
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