cruise control dead

le-sabre · 20th January 2017, 12:47

Hi guys , I have a mate with 2005 ZTT with cruise control. He never uses it to be honest but swears that the dash switch would illuminate the light and id work. Now a day or so back the dash switch doesn't light up at all and the cruise doesn't engage at all.
I took a quick look and he's right , it doesn't work , tried looking at the fuse but that is OK. Where do I look next ? how do I fault find ? where is the ecu for it ( if there is one )

Thanks

Rick-sta · 20th January 2017, 13:02

check the brake and clutch pedal switches, these usually pop out of place which prevents the cruise control from engaging, as it thinks you have your foot down on the brake or clutch

the most common cause for cruise control to stop working.

le-sabre · 20th January 2017, 13:17

Ok , thanks, i'll check that out.

And that will stop the dash switch from illuminating as well ?

Rick-sta · 20th January 2017, 13:21

when you say dash light, do you mean the yellow cruise control symbol on the instrument cluster or the green light on the cruise control master switch?

le-sabre · 20th January 2017, 13:22

Sorry I should have made that clearer.
I mean the master switch

Rick-sta · 20th January 2017, 13:40

ah in that case it's probably a different issue. If it was the brake or clutch pedal switches the master switch would still illuminate.

Wouldn't know what would cause that but hopefully someone will come along who does

Kennyeth · 21st January 2017, 09:38

Could just be the switch itself, on mine when you press it often does not light the led, but "wiggle" the switch a bit until it lights ok, a fault that`s forgotten about until next time I use it.
Ken.

steve-45 · 21st January 2017, 09:55

The switch will light up even with components missing, i.e. the cruise control ecu and steering wheel switches ....

sicknote · 21st January 2017, 10:40

ABS sensor may be front nearside i believe runs cruise control but would exspect abs light as well

john adam · 1st February 2017, 02:18

Hello, where is the brake cruise control switch on an auto V6?

20th January 2017, 12:47	#1
le-sabre Regular poster MG ZT-T Join Date: May 2014 Location: WARWICKSHIRE Posts: 83 Thanks: 21 Thanked 4 Times in 4 Posts	cruise control dead Hi guys , I have a mate with 2005 ZTT with cruise control. He never uses it to be honest but swears that the dash switch would illuminate the light and id work. Now a day or so back the dash switch doesn't light up at all and the cruise doesn't engage at all. I took a quick look and he's right , it doesn't work , tried looking at the fuse but that is OK. Where do I look next ? how do I fault find ? where is the ecu for it ( if there is one ) Thanks __________________ [SIGPIC]ZT-T CDTi 135+ Ski Blue, Climate control, sunroof, rain sensor, headlamp washer, parking sensors, Xenon, Blue Alcantera/leather, 18" Gridspoke This vehicle was the 1st ZT-T in Ski Blue (code: JHI) to be made out of 3 Ski Blue ZT-Ts & the only diesel ZT-T in Ski Blue. This vehicle was the 7,369th ZT-T to run off the production line, out of 8,249 This vehicle was the 2,352nd ZT-T CDTi + (135) to be made out of 2,795

20th January 2017, 13:02	#2
Rick-sta This is my second home MG ZT 2.0 CDTI+ in Typhoon, MG TF 135 in Typhoon & Rover 75 Connoisseur CDTI SE in Pearl Black Join Date: Oct 2012 Location: Norfolk Posts: 7,532 Thanks: 2,718 Thanked 2,827 Times in 1,462 Posts	check the brake and clutch pedal switches, these usually pop out of place which prevents the cruise control from engaging, as it thinks you have your foot down on the brake or clutch the most common cause for cruise control to stop working. __________________ How to retrofit Cruise Control on a diesel with no OEM wiring in place: Link How to retrofit heated electric memory seats with no OEM wiring in place: Link How to operate FBH and ATC via text Link How to restore cloudy projector headlights Link

20th January 2017, 13:17	#3
le-sabre Regular poster MG ZT-T Join Date: May 2014 Location: WARWICKSHIRE Posts: 83 Thanks: 21 Thanked 4 Times in 4 Posts	Ok , thanks, i'll check that out. And that will stop the dash switch from illuminating as well ? __________________ [SIGPIC]ZT-T CDTi 135+ Ski Blue, Climate control, sunroof, rain sensor, headlamp washer, parking sensors, Xenon, Blue Alcantera/leather, 18" Gridspoke This vehicle was the 1st ZT-T in Ski Blue (code: JHI) to be made out of 3 Ski Blue ZT-Ts & the only diesel ZT-T in Ski Blue. This vehicle was the 7,369th ZT-T to run off the production line, out of 8,249 This vehicle was the 2,352nd ZT-T CDTi + (135) to be made out of 2,795

20th January 2017, 13:21	#4
Rick-sta This is my second home MG ZT 2.0 CDTI+ in Typhoon, MG TF 135 in Typhoon & Rover 75 Connoisseur CDTI SE in Pearl Black Join Date: Oct 2012 Location: Norfolk Posts: 7,532 Thanks: 2,718 Thanked 2,827 Times in 1,462 Posts	when you say dash light, do you mean the yellow cruise control symbol on the instrument cluster or the green light on the cruise control master switch? __________________ How to retrofit Cruise Control on a diesel with no OEM wiring in place: Link How to retrofit heated electric memory seats with no OEM wiring in place: Link How to operate FBH and ATC via text Link How to restore cloudy projector headlights Link

20th January 2017, 13:22	#5
le-sabre Regular poster MG ZT-T Join Date: May 2014 Location: WARWICKSHIRE Posts: 83 Thanks: 21 Thanked 4 Times in 4 Posts	Sorry I should have made that clearer. I mean the master switch __________________ [SIGPIC]ZT-T CDTi 135+ Ski Blue, Climate control, sunroof, rain sensor, headlamp washer, parking sensors, Xenon, Blue Alcantera/leather, 18" Gridspoke This vehicle was the 1st ZT-T in Ski Blue (code: JHI) to be made out of 3 Ski Blue ZT-Ts & the only diesel ZT-T in Ski Blue. This vehicle was the 7,369th ZT-T to run off the production line, out of 8,249 This vehicle was the 2,352nd ZT-T CDTi + (135) to be made out of 2,795

20th January 2017, 13:40	#6
Rick-sta This is my second home MG ZT 2.0 CDTI+ in Typhoon, MG TF 135 in Typhoon & Rover 75 Connoisseur CDTI SE in Pearl Black Join Date: Oct 2012 Location: Norfolk Posts: 7,532 Thanks: 2,718 Thanked 2,827 Times in 1,462 Posts	ah in that case it's probably a different issue. If it was the brake or clutch pedal switches the master switch would still illuminate. Wouldn't know what would cause that but hopefully someone will come along who does __________________ How to retrofit Cruise Control on a diesel with no OEM wiring in place: Link How to retrofit heated electric memory seats with no OEM wiring in place: Link How to operate FBH and ATC via text Link How to restore cloudy projector headlights Link

21st January 2017, 09:38	#7
Kennyeth This is my second home No more Rover Join Date: Apr 2009 Location: Barnsley, South Yorkshire. Posts: 5,881 Thanks: 1,625 Thanked 1,308 Times in 998 Posts	Could just be the switch itself, on mine when you press it often does not light the led, but "wiggle" the switch a bit until it lights ok, a fault that`s forgotten about until next time I use it. Ken.

21st January 2017, 09:55	#8
steve-45 This is my second home Rover 75 Saloon CDTi Join Date: Oct 2015 Location: Belvedere Posts: 4,076 Thanks: 108 Thanked 1,089 Times in 774 Posts	The switch will light up even with components missing, i.e. the cruise control ecu and steering wheel switches ....

21st January 2017, 10:40	#9
sicknote Regular poster rover 75 se Join Date: Oct 2015 Location: Newport Posts: 48 Thanks: 5 Thanked 14 Times in 9 Posts	ABS sensor may be front nearside i believe runs cruise control but would exspect abs light as well

1st February 2017, 02:18	#10
john adam Avid contributor 1999 Rover 75 2.5 Connoisseur saloon Join Date: May 2007 Location: Carterton, NZ Posts: 106 Thanks: 18 Thanked 3 Times in 3 Posts	cruise control switck Hello, where is the brake cruise control switch on an auto V6?

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