OEM Rear parking sensors.

FantasticMrFish · 22nd May 2021, 12:38

So my 75 has OEM parking sensors that I have been meaning to fix since I bought the car.

No beep or anything when I first got the car so I began my diagnostic.

1. No reverse light - had a new switch fitted ( reverse lights now working).
2. Still nothing so I bought a new parking sensor ECU that mounts in the boot. (Thought I was onto a winner here as the pins in the connectors were corroded). Cleaned out the connectors on the car side and plugged my new ECU in. Now all I got was a 5 second beep.
3. Put the car in reverse and went to listen to the actual sensors. All clicking away happily.
4. Tried to clean them with some isopropyl. Still just the long beep.

I'm now at a dead end looking for some help from the wise people of this site.

Cheers

Shaun

Yorkshire GOC · 22nd May 2021, 12:52

i have had problems with my OEM parking sensors - the long bleep - if your sensors are all live as mine where look at the connector which brings together the 4 separate sensor looms half way between the Parking ECU and the sensors. When the connector was examined there was clear evidence of corrosion - so cleaned the connector up and a good rub with iso propyl and 18 months on they are working fine.

22nd May 2021, 12:38	#1
FantasticMrFish Avid contributor Rover 75 Tourer Join Date: Mar 2021 Location: Newcastle upon Tyne Posts: 178 Thanks: 29 Thanked 17 Times in 14 Posts	OEM Rear parking sensors. So my 75 has OEM parking sensors that I have been meaning to fix since I bought the car. No beep or anything when I first got the car so I began my diagnostic. 1. No reverse light - had a new switch fitted ( reverse lights now working). 2. Still nothing so I bought a new parking sensor ECU that mounts in the boot. (Thought I was onto a winner here as the pins in the connectors were corroded). Cleaned out the connectors on the car side and plugged my new ECU in. Now all I got was a 5 second beep. 3. Put the car in reverse and went to listen to the actual sensors. All clicking away happily. 4. Tried to clean them with some isopropyl. Still just the long beep. I'm now at a dead end looking for some help from the wise people of this site. Cheers Shaun

22nd May 2021, 12:52	#2
Yorkshire GOC I really should get out more....... Rover 75 connoisseur se v6 auto Join Date: May 2014 Location: Hull Posts: 2,065 Thanks: 1,842 Thanked 623 Times in 469 Posts	i have had problems with my OEM parking sensors - the long bleep - if your sensors are all live as mine where look at the connector which brings together the 4 separate sensor looms half way between the Parking ECU and the sensors. When the connector was examined there was clear evidence of corrosion - so cleaned the connector up and a good rub with iso propyl and 18 months on they are working fine. __________________ She came off the Longbridge Line on 20-05-2003 The Silver Machine was the 13th of 160 Rover 75's to come off the production line that day and is the 100th of 527 Starlight Silver Rover 75 2.5 V6 Connoisseur SE Auto saloons listed in the build records produced world wide.