What does code P1392 mean?

Q: What does code P1392 mean?

Wheel Speed Sensor 1 G-Sensor Circuit Low Voltage. P1392 on a GM vehicle means the control module has detected a low-voltage condition on the signal circuit from the wheel speed sensor that also incorporates a G-sensor (gravity/acceleration sensor), typically used for enhanced stability and hill-hold functions. The computer compares the sensor's output against expected voltage ranges and flags the circuit as low when the signal stays below the calibrated threshold for a set period.

DTC codes / GM codes / P1392

P1392 · GMWheel Speed Sensor 1 G-Sensor Circuit Low Voltage

P1392 on a GM vehicle means the control module has detected a low-voltage condition on the signal circuit from the wheel speed sensor that also incorporates a G-sensor (gravity/acceleration sensor), typically used for enhanced stability and hill-hold functions. The computer compares the sensor's output against expected voltage ranges and flags the circuit as low when the signal stays below the calibrated threshold for a set period.

SystemPowertrain

Code typeGM specific

SeverityMedium

Fix difficultyIntermediate

AreaIgnition system and misfire

Guidance is general and written for GM vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.