Engine-CodesCadillac – P1392 Cadillac

P1392 Cadillac Code - Wheel Speed Sensor 1 G-Sensor Circuit Low Voltage

Quick Answer

The P1392 Cadillac code indicates a problem with the Wheel Speed Sensor 1 G-Sensor Circuit, specifically detecting low voltage. Common causes include Faulty wheel speed sensor, Damaged or corroded wiring connections, Faulty G-sensor circuit. 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
P1392 Cadillac indicates Wheel Speed Sensor 1 G-Sensor Circuit Low Voltage.
Common causes
Common causes include Faulty wheel speed sensor, Damaged or corroded wiring connections, Faulty G-sensor circuit.
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.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1392 Cadillac Description

The P1392 Cadillac code indicates a problem with the Wheel Speed Sensor 1 G-Sensor Circuit, specifically detecting low voltage. In modern vehicles, wheel speed sensors are crucial components of the anti-lock braking system (ABS) and the vehicle stability control system. These sensors monitor the speed of each wheel and provide data to the vehicle's computer system for proper control of braking and traction.

OBDII Code P1392 Cadillac - Wheel Speed Sensor 1 G-Sensor Circuit Low Voltage
P1392 Cadillac Code - Wheel Speed Sensor 1 G-Sensor Circuit Low Voltage

Common Causes of P1392 Cadillac

  1. Faulty wheel speed sensor
  2. Damaged or corroded wiring connections
  3. Faulty G-sensor circuit
  4. Electrical system issues, such as a blown fuse or relay
  5. Water or debris intrusion affecting sensor performance

Symptoms of P1392 Cadillac

  1. ABS warning light illuminated on the dashboard
  2. Traction control system malfunction or warning light
  3. Decreased braking performance, especially on slippery surfaces
  4. Unusual noises or vibrations during braking
  5. Loss of stability control or traction assistance

How to Fix P1392 Cadillac

  1. Conduct a diagnostic scan to confirm the P1392 code and pinpoint the exact issue
  2. Inspect the wheel speed sensor, wiring, and G-sensor circuit for damage or corrosion
  3. Replace the faulty wheel speed sensor or repair any damaged wiring connections
  4. Test the system to ensure proper functionality and clear the diagnostic trouble codes
  5. Re-calibrate the ABS and stability control systems if needed

Cost to Fix P1392 Cadillac

The typical repair costs for addressing a P1392 Cadillac code can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. In general, replacing a wheel speed sensor or repairing wiring connections can cost between $150 to $300, including parts and labor. However, if the G-sensor circuit needs to be replaced or if additional electrical system repairs are required, the cost can increase accordingly. It is advisable to consult with a qualified mechanic or auto repair shop for a more accurate estimate based on the specific circumstances of the vehicle. Labor rates at auto repair shops typically range between $80 to $150 per hour, but may vary based on location and shop type.

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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.

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