Powertrain
Generic/SAE
OBD-II Fault Code
P0553: Power Steering Pressure Sensor Circuit High Input
Meaning, symptoms, likely causes, diagnostic checks and repair guidance for P0553.
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 P0553 usually means
Power Steering Pressure Sensor Circuit High 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; High signal voltage; Open ground; Short to voltage; 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 ground and signal circuit for short to voltage
Repair guidance
Repair wiring/power supply, perform calibration, replace failed sensor/module after confirmation; Repair ground/signal circuit or replace confirmed faulty sensor
Verification after repair
Clear code, road-test through the same drive condition, then rescan