Brake pad warning light stays on

stuuk · 15th November 2008, 16:28

Hi Guys (and Gals)

My brake pad warning light came on recently so checked my front pads and sure enough there was very little left on the inner pads so I changed all the front pads.
Unfortunately i managed to brake a bit off the sensor plug taking it out but managed to reconnect it anyway.

I checked the rear pads but there was plenty of meat left on them.

Problem is the brake pad warning light still comes on and it still comes on with the front wear sensor cable disconnected!!

Someone told me to check the brake fluid level as this uses the same warning light but that is on the max mark.

My car is an 05 Connie SE 1.8 T Auto.
The warning light is the circle with the 2 pads either side and no letters on the middle (ie it isnt the abs warning light)

Any ideas??

Thanks

kevin · 15th November 2008, 16:34

you need to change the sensor plug when renewing the pads.

rt2 · 15th November 2008, 16:34

The brake pad warning sensor has to be renewed at the same time it is not reusable.

chris75 · 15th November 2008, 18:19

Quote:

Originally Posted by stuuk

Hi Guys (and Gals)

Problem is the brake pad warning light still comes on and it still comes on with the front wear sensor cable disconnected!!

I suspect having it disconnected presents the same signal as when it is worn through and severed ?

dustybin · 15th November 2008, 18:31

no it shouldn´t,,it earths out on the brake disc that completes the Circuit,,so not connecting one should have no effect and the light should stay off .unless rover had there own different system to everyone else.

Greeners · 15th November 2008, 18:34

Quote:

Originally Posted by dustybin

no it shouldn´t,,it earths out on the brake disc that completes the Circuit,,so not connecting one should have no effect and the light should stay off .unless rover had there own different system to everyone else.

Pretty sure that they use a loop system, so as the sensor wears through and breaks the loop, the light comes on.

raykay · 15th November 2008, 18:37

Quote:

Originally Posted by dustybin

no it shouldn´t,,it earths out on the brake disc that completes the Circuit,,so not connecting one should have no effect and the light should stay off .unless rover had there own different system to everyone else.

It doesn't earth on the disc, it is a closed circuit system, the sensor has a tip with a wire loop in it, as the pad wears away so does the tip, eventually breaking the loop which breaks the circuit and the warning light is switched on. As said above, a new sensor is required.

chris75 · 15th November 2008, 18:42

Quote:

Originally Posted by Greeners

Pretty sure that they use a loop system, so as the sensor wears through and breaks the loop, the light comes on.

That's what I'm thinking . The setup Dustybin describes is too simple for Rover , and would allow us to reuse the sensor !!!!!

sworks · 15th November 2008, 18:59

older cars use the brake disc to earth out the wire and put the light on. The 75 as allready said works on a loop

dustybin · 15th November 2008, 19:18

so cut the wires and fasten them together.

15th November 2008, 16:28	#1
stuuk Regular poster Rover 75 Connie SE 1.8T Auto Join Date: Feb 2008 Location: Guisborough Posts: 68 Thanks: 0 Thanked 0 Times in 0 Posts	Brake pad warning light stays on Hi Guys (and Gals) My brake pad warning light came on recently so checked my front pads and sure enough there was very little left on the inner pads so I changed all the front pads. Unfortunately i managed to brake a bit off the sensor plug taking it out but managed to reconnect it anyway. I checked the rear pads but there was plenty of meat left on them. Problem is the brake pad warning light still comes on and it still comes on with the front wear sensor cable disconnected!! Someone told me to check the brake fluid level as this uses the same warning light but that is on the max mark. My car is an 05 Connie SE 1.8 T Auto. The warning light is the circle with the 2 pads either side and no letters on the middle (ie it isnt the abs warning light) Any ideas?? Thanks __________________ Rover 75 1.8T Connie SE Auto (05) Guisborough

15th November 2008, 16:34	#2
kevin I really should get out more....... ford focus ghia Join Date: Feb 2007 Location: herts Posts: 2,553 Thanks: 0 Thanked 2 Times in 2 Posts	you need to change the sensor plug when renewing the pads.

15th November 2008, 16:34	#3
rt2 Banned Rover 75 Tourer 2.5 connoisseur se in moonstone manual Join Date: Dec 2007 Posts: 0 Thanks: 0 Thanked 0 Times in 0 Posts	The brake pad warning sensor has to be renewed at the same time it is not reusable.

15th November 2008, 18:31	#5
dustybin Avid contributor MG ZT Join Date: Nov 2006 Location: Northamptshire Posts: 200 Thanks: 1 Thanked 1 Time in 1 Post	no it shouldn´t,,it earths out on the brake disc that completes the Circuit,,so not connecting one should have no effect and the light should stay off .unless rover had there own different system to everyone else.

15th November 2008, 18:59	#9
sworks This is my second home Rover 75 Tourer, Classic mini Cooper S, Abarth 595 competizione, MG TF and a Hyundai Tucson PHEV Join Date: Feb 2007 Location: Cumbria Posts: 13,073 Thanks: 1,033 Thanked 1,686 Times in 1,040 Posts	older cars use the brake disc to earth out the wire and put the light on. The 75 as allready said works on a loop

15th November 2008, 19:18	#10
dustybin Avid contributor MG ZT Join Date: Nov 2006 Location: Northamptshire Posts: 200 Thanks: 1 Thanked 1 Time in 1 Post	so cut the wires and fasten them together.