How are Power Steering Control Module issues diagnosed?
When diagnosing the power steering control module, the technician will simply compare actual conditions to electronic conditions. In other words, If the technician notes that the power steering motor is active, but the control module shows no voltage to the power steering assist motor, a discrepancy is noted. Discrepancies like this are commonly used as clues which map to the issue. If the technician finds that the issue originates with the control module, whether by physical or scan testing, the module will be verified defective and replaced.
How are Power Steering Control Modules replaced?
Like any other control module, the location of the power steering control module will be identified, and the technician will then begin removing all obstructing components needed to access and remove the control module. Once accessed and removed, the connectors are cleaned and inspected, and the new module will be installed. After all components are reassembled on the vehicle, the technician will program the control module, if needed, and test the operation of the system to ensure the customer complaint has been corrected.
RepairPal Recommendations for Power Steering Control Module issues
When dealing with electronic systems, especially if the issue pertains to the control module, we recommend thorough diagnostics before replacing parts. In effort to correct an electronic failure, it would be very easy to spend hundreds of dollars replacing components before realizing the issue is more advanced. In the case of electronic failures, diagnostics is a must.
What to look out for when dealing with Power Steering Control Module issues
Not all vehicles will have this component, and most vehicles with a power steering control module will also have electronic power steering. Except for some manufacturers, if the vehicle has a power steering fluid reservoir, power steering fluid pump or power steering fluid lines, it is unlikely that a power steering control module will be used. Also, be aware that most power steering control modules will likely be mounted on or near the steering column or the steering gear.
Can I replace the Power Steering Control Module myself?
Except for the very advanced DIY mechanic with a strong understanding of computerized circuit diagnostics and testing, this repair should be left to a professional. Again, diagnostics of electronic systems are difficult for the untrained person to perform correctly. Unless safety and diagnostic methods are understood and followed properly, this should be left to a professional.
