Tag
#power steering
4 posts in Car Diagnostics blog about "power steering" — OBD-II diagnostics, DTC codes, repair. ← All posts
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"Steering assist reduced": voltage before you condemn the rack
Electric power steering draws heavy current. That is why a message about the steering is so often a message about the battery.
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Power steering warning light: electric and hydraulic causes
Electric and hydraulic systems fail in completely different ways and give completely different warnings. Knowing which one you have decides whether this is a fluid check or a scan.
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Power steering: whining, leaking, or gone heavy
A whine on lock usually means air or fluid level. Hydraulic system symptoms and how an electric system differs.
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Heavy steering: why it is often an electronic problem, not a mechanical one
Hydraulic assist gets heavy from fluid level and belts. Electric assist gets heavy from voltage, the angle sensor, and the speed signal. Both designs, and why on modern cars the culprit sits somewhere else entirely.