car shifting to the left - Infiniti Q50 Forum
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post #1 of 5 (permalink) Old 05-23-2019, 02:14 AM Thread Starter
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Default car shifting to the left

Yesterday, while I was driving my Q50 Hybrid(2015) it started to shift to the left; I had to turn the steering wheel to the right to keep the car straight. Than I stopped and turn the car off/on, the issue did not resolved until I drove it for 5 minutes.
Meanwhile, when I stopped to park I got a light message DAS system failed and the steering column engaged; I turn the car off/on and the problem went away.

Today, I have no issue, but from what I have read on the net that many Q50 owners that have DAS had the same issues.

Should I be worried about it?

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Last edited by Gattan; 05-23-2019 at 02:36 AM.
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post #2 of 5 (permalink) Old 05-23-2019, 03:08 AM
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Another person here had a DAS malfunction similar to yours. After it reset it did not replicate. A gremlin? If it does it again; dealership time. @Avedis53 <- he may have a more valuable commitment.
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post #3 of 5 (permalink) Old 05-23-2019, 12:27 PM
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Another person here had a DAS malfunction similar to yours. After it reset it did not replicate. A gremlin? If it does it again; dealership time. @Avedis53 <- he may have a more valuable commitment.
I do have more valuable commitments but I'll always have time to help others here if I can.

The DAS system can go into protection mode for many reasons. When the Power Steering Warning light comes on, the DAS system will engage the DAS clutch, steering effort will increase and the steering wheel may be off-center. The warning will clear after turning the engine off and back on if the underlying reason has resolved itself. Other DAS issues will continue to display the Power Steering Warning light after cycling the ignition if the problem still exists.

One thing that can cause DAS to enter protection mode is if you turn the steering wheel with a force stronger than the butting reaction force generated by the steering force motor. This will clear with an ignition cycling.

Another condition that can cause DAS to go into protection mode is when the steering wheel is operated repeatedly or continuously while parking or driving at a very low speed. The power assist for the steering wheel will be reduced and the steering wheel may be off-center or feeling in turning steering wheel may change.

This is to prevent overheating of the direct adaptive steering system (Steering Force Control motor or module) and protect it from getting damaged. When the temperature of the direct adaptive steering system cools down, the power assist level will return to normal. Avoid repeating steering wheel operations that could cause the direct adaptive steering system to overheat.

If the internal temperature of the steering force motor exceeds 302 degrees F or the internal temperature of the steering force control module exceeds 194 degrees F, DAS enters protection mode. As stated previously, this is temporary and will clear itself when the offending temperature drops back down below the temperature limit.

If DAS remains in protection mode after ignition cycling and/or allowing DAS to cool down, then you need to take the car in for service. Without a CONSULT scan tool, diagnosing a DAS problem is essentially impossible for a shade-tree mechanic and repairing it a job best left for the service techs.

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post #4 of 5 (permalink) Old 05-23-2019, 02:04 PM
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Another condition that can cause DAS to go into protection mode is when the steering wheel is operated repeatedly or continuously while parking or driving at a very low speed. The power assist for the steering wheel will be reduced and the steering wheel may be off-center or feeling in turning steering wheel may change.



Those who have been on here for a while know that I had a major melt down of the system a couple of years ago (caused by low voltage from the 12V battery). However, about two months ago, I had another episode like what the OP relates. I drove immediately to the dealer, but because it was Sunday, it was closed. After restarting the car, the problem was fixed. The explanation above seems to explain what happened to me. I was driving through the Ocoee Gorge, and had been going slowly behind someone who was afraid to go more than 30 mph at any point. There are a lot of left and right turns, and the failure happened during one of those turns. The odd thing is that when I took the car in to the dealer the next day, they said that no codes were thrown. Anyway, thanks for your explanation.
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post #5 of 5 (permalink) Old 05-23-2019, 02:18 PM
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Another condition that can cause DAS to go into protection mode is when the steering wheel is operated repeatedly or continuously while parking or driving at a very low speed. The power assist for the steering wheel will be reduced and the steering wheel may be off-center or feeling in turning steering wheel may change.



Those who have been on here for a while know that I had a major melt down of the system a couple of years ago (caused by low voltage from the 12V battery). However, about two months ago, I had another episode like what the OP relates. I drove immediately to the dealer, but because it was Sunday, it was closed. After restarting the car, the problem was fixed. The explanation above seems to explain what happened to me. I was driving through the Ocoee Gorge, and had been going slowly behind someone who was afraid to go more than 30 mph at any point. There are a lot of left and right turns, and the failure happened during one of those turns. The odd thing is that when I took the car in to the dealer the next day, they said that no codes were thrown. Anyway, thanks for your explanation.
I didn't mention low battery voltage but that can indeed trigger DAS to go into protection mode also. DTC - C13E7-00.

Another thing that can cause DAS to go into protection mode is if the steering wheel is operated under a condition where the steering angle is physically restricted due to the influence of curbstones or other substances. DTC - C13E8-00.
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