Hello from Indiana. Our 2014 CX9 awd touring isn't liking the snow this year. On snowy roads the 4WD light will begin to flash for about 20 seconds. You can make the vehicle do this by semi aggressively getting into the gas. After about 20 seconds, when the 4wd light goes off, occasionally you can feel a little shudder and see the traction control light flash for a second. Again this is on snowy roads.
I have a decent scanner, an Autel 808. It shows no faults. By monitoring live data, I can see that I am definitely able to generate some wheel slip on the front wheels, the rear wheel are always steady at vehicle speed. I can see the coupling solenoid duty cycle fluctuate. I'm not sure what normal is, but it will get up to about 80% before the 4wd light begins to flash. Once the light starts flashing the coupling solenoid duty cycle drops to zero. And then when 4wd light goes out it starts showing a duty cycle again.
I put the car up on my lift and got a good look at everything. Visually I see no problems or causes for concern. My gut tells me the transfer case/ptu isn't transferring any power to the rear diff or maybe the coupling itself has failed. There are no abnormal noises when driving. The vehicle has about 190k on it
Any ideas of where to look or advice would be very helpful.
TYIA!
Ryan
I have a decent scanner, an Autel 808. It shows no faults. By monitoring live data, I can see that I am definitely able to generate some wheel slip on the front wheels, the rear wheel are always steady at vehicle speed. I can see the coupling solenoid duty cycle fluctuate. I'm not sure what normal is, but it will get up to about 80% before the 4wd light begins to flash. Once the light starts flashing the coupling solenoid duty cycle drops to zero. And then when 4wd light goes out it starts showing a duty cycle again.
I put the car up on my lift and got a good look at everything. Visually I see no problems or causes for concern. My gut tells me the transfer case/ptu isn't transferring any power to the rear diff or maybe the coupling itself has failed. There are no abnormal noises when driving. The vehicle has about 190k on it
Any ideas of where to look or advice would be very helpful.
TYIA!
Ryan