Powertrain
Generic/SAE
OBD-II Fault Code
P0552: Power Steering Pressure Sensor Circuit Low Input
Meaning, symptoms, likely causes, diagnostic checks and repair guidance for P0552.
Steering system
Use this category to narrow your checks before replacing parts.
High
Severity is a general guide. Confirm with scan-tool data and vehicle symptoms.
What P0552 usually means
Power Steering Pressure Sensor Circuit Low Input.
Common symptoms
Check Engine light; Poor drivability or reduced fuel economy depending on fault; Steering warning lamp or heavy/abnormal steering
Likely causes
Low voltage; Steering angle/torque sensor fault; Power steering motor/module issue; Wiring fault; Low signal voltage; Weak power supply; High resistance/poor ground; Failed sensor
Diagnostic checks
Scan all modules and record freeze-frame data before clearing codes; Check battery voltage and related fuses; Check battery/charging system; Calibrate steering angle sensor if required after repair/alignment; Check sensor reference voltage, ground and signal voltage
Repair guidance
Repair wiring/power supply, perform calibration, replace failed sensor/module after confirmation; Repair poor ground/power feed or replace confirmed faulty sensor
Verification after repair
Clear code, road-test through the same drive condition, then rescan