Techstream gurus - Analysis please

[RayW]

Hi folks,

Been having some AHC issues lately. After trudging thru hundreds of AHC related posts, hours of reading and getting myself a Techstream application, Im still somewhat clueless where my issue may lie exactly.

I had hoped for something like a bad sensor or connection; but now after analysis Im not sure which direction to head.

I would sure appreciate someone with a Techstream "degree" to offer some insight on the attached TS analysis.

Many thanks in advance,

Ray

 

[PADDO]

I think the speed sensor dtcs in both AHC and ABS are interesting, speed is an input to both ECUs. I've seen the other two AHC pressure dtcs and they have been spurious, no hard fault found, as long as you have fluid in the tank and it hasn't sucked air in. I'd clear all faults and monitor, if you get the same shopping list of faults then clearly you have a hard fault that needs further investigation, or you might get lucky and they don't reappear. If you have the need to poke around on your vehicle, I would, I'd check your speed sensor cabling, maybe pull and clean and also check the connectors going into the leveling/gate valve block on the DS inside frame rail. You can use TechStream to do an active test on the ABS solenoids cct as well as the speed sensors.

 

[RayW]

Many Thanks for the insight sir.

I too thought the speed sensor dtc showing up twice in separate systems was suspect. Once the rain stops here in northern va this weekend I plan to check the sensors and connectors thoroughly.

I'm a do it yourselfer to a fault and have a old commuter car for work so I can afford to let it sit until I can figure out a solution. I'll update as I go along.

I'm open to any and all theories,,,

 

[Austin Green]

Many Thanks for the insight sir.

I too thought the speed sensor dtc showing up twice in separate systems was suspect. Once the rain stops here in northern va this weekend I plan to check the sensors and connectors thoroughly.

I'm a do it yourselfer to a fault and have a old commuter car for work so I can afford to let it sit until I can figure out a solution. I'll update as I go along.

I'm open to any and all theories,,,

Hi, what's your final solution? I would like to know, and have same issues to do.