2010 Toyota Auris 1.4 D-4D (220k km): non-operational E


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2010 Toyota Auris 1.4 D-4D (220k km): non-operational Electric Power Steering (EPS)

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krustydonuts
New User

Aug 18, 2023, 5:13 AM

Post #1 of 3 (382 views)

2010 Toyota Auris 1.4 D-4D (220k km): non-operational Electric Power Steering (EPS)	Sign In

The car was driven for weeks with "engine oil maintenance" check-light on. Eventually it shut down while driving; presumably a fail-safe engaged. After the engine oil was topped up, the power steering assistance isn't working anymore, and the EPS check-light is on.

An unlikely coincidence or is there an explanation, relating
1. low engine oil (and consequent shutdown) to
2. non-operational EPS?

The only explanation I can think of: the fail-safe, which prevented the engine's self-destruction due to lack of oil, also 'took down' EPS's ECU.

Thanks for any response.

(This post was edited by krustydonuts on Aug 19, 2023, 2:40 AM)

Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Aug 18, 2023, 6:57 AM

Post #2 of 3 (368 views)

Re: 2010 Toyota Auris 1.4 D-4D (220k km): non-operational Electric Power Steering (EPS)	Sign In

You have a bunch of incorrect assumptions here.

There is no such thing as a low oil shutdown. That would be an extreme safety hazard. The engine would continue to run until it seized up.

I don't think there is any relationship at all between the steering problem and the oil level.

What you need to do is get this into a competent shop and have it diagnosed correctly.

If you want to try something yourself first test ALL the fuses in all the boxes with a test light.

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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.

krustydonuts
New User

Aug 19, 2023, 2:42 AM

Post #3 of 3 (315 views)

Re: 2010 Toyota Auris 1.4 D-4D (220k km): non-operational Electric Power Steering (EPS)	Sign In

Thanks for the response. You were correct: no relation between low-oil and the observed symptoms. Turned out the alternator died.

And indeed, there's no failsafe for low-oil scenario.

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