2017 Q50S DAST problems doesn't work

In 2014, the G37 Sedan became Infiniti Q50. G37 Coupe and Convertible became Infiniti Q60 under Infiniti's new naming structure - Here's the place to discuss the Q50 and Q60!
Chevy29
Posts: 1
Joined: Sun Dec 15, 2019 7:03 pm
Car: Infiniti q50

2017 Q50S DAST problems doesn't work

Postby Chevy29 » Mon Dec 16, 2019 12:49 am

Hello!!! My name is Alex and I am contacting you from a repair facility in Northeast Philly. We have here 2017 Infiniti Q50S with DAST steering with liht body damage (no deployed airbags, no chassis damage) after we fix all body damage it was no faults lights an the dash and everything seems working good. As part of repair we supposed to check alignment and fan part begins. We have Hunter alignment machine and when we started procedure and adjusted front right toe (was out little bit) Hunter recommends to perform DAST1 and DAST2 calibration. We used Autel tool to perform procedure and when I started DAST1 of course wheels turns left then right and I heard click sound and power steering doesn't work now and I have a lot of codes.
My codes:
ABS: C1138 4WAS CIRCUIT
ICC/ADAS: C1A04 ABS/TCS/VDC CIRC
Chassis control: C1B90:00 DAST SYSTEM (NO SUBTYPE IMFORMATION)
DAST1: C13E9:00 BOOTING ANGLE PROCESSING
C13EB:00 BOOTING ANGLE PROCESSING
C13F0:00 INCOMP DAST CALIBRATION

DAST2: C13EB:00 BOOTING ANGLE PROCESSING
C13F0:00 INCOMP DAST CALIBRATION

Tried to repeat DAST Calibration and Autel tool showed massage that " condition not met error 22 (DAST1 and DAST2 the same)
After couple hours with Autel I found in the data strange numbers:
STEERING PINION ANGLE: 6.8 (CHANGES WHILE ROTATING STEERING WHEEL)
STEERING PINION ANGLE 1: 117331.9 (CHANGES WHILE ROTATING STEERING WHEEL)
ANGLE DIFFERENCE: 117333.1 (STAYS THE SAME WHILE ROTATING STEERING WHEEL)

According, truthfully only my intuition, I think we can't repeat DAST Calibration because of the angle difference and that crazy numbers of 117333.1 something, degrees probably. We left car to the dealer and they tried to reset codes and calibrate DAST but unsuccessful and they told as the vehicle need to be relapsed major DAST components.
Maybe someone can help as in that situation, or maybe recommend as in which direction we should dig.


User avatar
audtatious
Moderator
Posts: 36924
Joined: Sun Oct 27, 2002 5:31 pm
Car: 2017 Q60 Red Sport - 2014 Q50s AWD
Location: Stalking You
Contact:

Re: 2017 Q50S DAST problems doesn't work

Postby audtatious » Thu Jan 09, 2020 2:06 pm

Not sure but it sounds like a cluster-fuk. If Infiniti can't reset it through CONSULT and state there are now parts to be replaced then that's the way to go. I've not had alignment issues from my car yet but did have the system go nuts once with the steering wheel cocked 20 degrees....after a couple minutes, and a U-turn, it fixed itself and has been fine.


Return to “Infiniti Q50 / Q60 Forum”