P273B Possible Causes
- Low tire air pressure
- Damaged steering gear bellows boot
- Contaminated gear/rack
- Inner tie rods
- Internal steering failure
How to Fix Code P273B
Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
Check Engine Light illuminated (or Service Engine Soon warning light)
P273B Meaning
The Power Steering Control Module (PSCM) will monitor the amount of force required to assist in vehicle steering when the ignition is on and PSCM supply voltage is above 6 volts, all other Electric Power Assist Steering (EPAS) sensors are functioning properly and the EPAS gear is providing assistance.