OBD-II Fault Code

P1653: Power Steering Output Circuit Malfunction

Meaning, symptoms, likely causes, diagnostic checks and repair guidance for P1653.

System family

Powertrain

Manufacturer-specific

Repair category

Steering system

Use this category to narrow your checks before replacing parts.

Severity

High

Severity is a general guide. Confirm with scan-tool data and vehicle symptoms.

What P1653 usually means

Power Steering Output Circuit Malfunction.

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

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

Repair guidance

Repair wiring/power supply, perform calibration, replace failed sensor/module after confirmation

Verification after repair

Clear code, road-test through the same drive condition, then rescan

Note: Confirm vehicle make/model/year because manufacturer-specific codes can vary; Manufacturer-specific: confirm definition and test steps in the vehicle service manual. A DTC identifies a circuit or system condition, not always the failed part.