Another failed sensor but I have a question

[Nanook]

Last year I had a rear (of two) sensor fail..chased my tail for some time until I finally determined the issue..which turned out to be a failed extension cable...between sensor cable and cpu input cable...needless to say since this was routed fromt the rear of my ML to the front it was no simple task to trouble shoot and replace this cable due to having to remove the tailgate covers and inner roof liner trims...not to mention the cable was the older style din pin type and I think I got the last available from my supplier..
Now i have another rear failure..the other rear sensor so I'm wondering...I know it's not recieving..this is can test..but is there a way other than IR camera to test if it is indeed transmitting...maybe it's not receiving but is still sending,,,if this is the case I may just op to leave it as is...as the other sensor is only about 18" I may just risk it...for the time being anyways..
I do have a good sensor as I ordered a new one for the last repair..of which I mentioned was the cable..tearing apart the rear inner hatch covers is a biatch that I'd prefer to avoid if possible..tia

[dinkydi]

i feel ya pain, very hard to run cables and get easy access, i had trouble 2 probs, at the same time ,one gps not working turned out to be cpu, that was np, but also at the same time had a rear senser that didnt work tested in parking mode not working, tested same sensor with the alp tester and it works, also re set default for # of sensers only shows three connected yet all four work when using tester, aint got a gun for proper testing, but been hit front and rear np got me flustrated, the whole system is now out of the car waiting for new one to come, so apart from ohm's meter is there any other checks or do i install all new gear to go with the recent new cpu the system is bout 4 years old the heads are P2 , are the new connecters better that the old din and better water proof

[Nanook]

Ripped it apart...bad rear sensor..luckily I had one..replaced it and all good..also lucky I had spare plastic push pin panel anchors as they always break..I could pull that panel now in 10 minutes...but next time I need to I'll have forgotten how again..oh well...at least I'm protected again.

Ya dinkydi I feel your pain..when our systems/components become obsolete it almost means a complete rebuild when parts no longer are available nor fit..that's progress I guess

[BestRadarDetectors]

Old Din style cables and sensors are still available. We stock them all the time for customers that might still need them. If your distributor does not have them they can still order them.

Sent from my SM-G935T using Tapatalk

[Nanook]

Okay good to know thanks

[dinkydi]

tested my rear cables all good with the ohms meter, hey Tom can sensors be tested o there own

[dinkydi]

got the answer from Tim

[melbVt]

I've had 3 fail over time,

[stealthpilot]

I've never had a failure on these sensors yet. Have only had ALP on 2 cars though.

For those who have had failures, does it always warn you of the failure, or is it worth doing a manual check with a gun and IR camera once in a while?

[Nanook]

It alerted the one time it was first noticed not present by the CPU then never again. I had to test to find it was toast
You could miss the fail warning and never know a sensor was gone..at least for me this time
When the cable failed last year it constantly alerted randomly but that may have been due to it working sporadically...not sure but regardless it may be a good idea to test every now and then