DTC P1221 Chevrolet
Position Sensor Overcurrent
Position Sensor Overcurrent
Description
Battery voltage is between 9-16 volts Ignition is ON
Cause and Solution
The ESC module senses suspension position sensor or automatic level control (ALC) sensor supply voltage under 4.75 volts or over 5.25 volts.The condition is detected for 1 second in 4 consecutive ignition cycles.
Video Guide
Diagnostic Info
- DTC Code: P1221
- Brand: Chevrolet