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2nd July 2020, 14:08 | #81 | |
Gets stuck in
Rover 75 Saloon Join Date: Apr 2008
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Quote:
Number 8 colour in red. So I'm out
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2nd July 2020, 14:15 | #82 |
Doesn't do things by halves
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007
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This is what I would do next Dougie. I'd break your new connection from the interface ECU C0895-9 to the cruise ECU C0239-1. I'd then supply C0239-1 directly with +12v to see if the cruise ECU will then reward me for providing it with a power supply.
What do you think? Simon
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2nd July 2020, 15:54 | #83 | |
Can't help myself
Rover 75 CDTi 2005 Join Date: Jan 2018
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It only bl00dy works!! Engages and disengages when it should (road speed, gears, brakes), the IPK light is fine, and because I mounted the vacuum pump on the right-side bulkhead, I can hear it BRRRP when it does its thing (I thought it was the ABS to start with & panicked a little ) So I guess the cruise relay needs to be condemned after all? If so, no big shakes there. I really could not have done it without your reasoned input and systematic diagnosing, Simon. It's been a complete bu99er but also a really good learning experience. I'm glad in the end that my wiring was fine, although I would've been equally glad to admit errors to solve the problem. I'm a great believer in paying things forward, so maybe I'll be able to advise some poor bloke struggling with his KV6 cruise retrofit, to not bother. Dougie.
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R75 C2 RJBLH Connoisseur CDTi Auto Saloon Built 08/02/2005 @14:57 hrs: Registered 26/08/2005 122nd of 141 built that day British Racing Green Pearlescent (HFF) Sandstone leather with black piping (SPJ) 137,000 miles Last edited by goltho; 2nd July 2020 at 16:30.. |
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2nd July 2020, 16:34 | #84 | ||
Doesn't do things by halves
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007
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You've got a great sense of humour Dougie! Well it's a bit odd. From where did you get the cruise "relay"? Edit: Surely the absence of the Shift Interlock ECU couldn't be responsible? Quote:
Simon
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"Whatever is rightly done, however humble, is noble." Sir Henry Royce. Last edited by SD1too; 2nd July 2020 at 16:40.. |
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2nd July 2020, 16:49 | #85 |
Can't help myself
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Just as well, eh?
eBay, as part of a "retrofit kit" (pump, throttle body & actuator, ECU, interface, paddle switches, master switch and - oddly - an EAT module which I didn't need). They were all quite tatty & showing signs of lying around in a damp environment. There's one on eBay about 30 minutes from me for around a tenner so I'll have it and see how it performs. I now need to stop myself thinking ahead ("What happens if that doesn't work.."), although just because I'm paranoid doesn't mean my cruise control isn't jinxed.... Dougie.
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R75 C2 RJBLH Connoisseur CDTi Auto Saloon Built 08/02/2005 @14:57 hrs: Registered 26/08/2005 122nd of 141 built that day British Racing Green Pearlescent (HFF) Sandstone leather with black piping (SPJ) 137,000 miles Last edited by goltho; 2nd July 2020 at 17:35.. |
2nd July 2020, 16:54 | #86 |
Can't help myself
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I just spotted your edit about the shift interlock. I was wrong about that - it is there although it doesn't require the brake switch's input.
What harm might be done to leave it wired the way I did it today as the workaround? Dougie.
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R75 C2 RJBLH Connoisseur CDTi Auto Saloon Built 08/02/2005 @14:57 hrs: Registered 26/08/2005 122nd of 141 built that day British Racing Green Pearlescent (HFF) Sandstone leather with black piping (SPJ) 137,000 miles |
2nd July 2020, 17:28 | #87 | ||
Doesn't do things by halves
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007
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Quote:
I've just checked my car and you're right. Quote:
The only remaining possible explanation is this from RAVE: "The interface ECU monitors the two inputs it receives from the brake switch and checks them for plausibility. If the two inputs differ, the interface ECU disconnects the power supply output to the cruise control ECU to cancel/prevent cruise control operation for the remainder of the ignition cycle." Maybe the brake pedal switch still isn't what the interface ECU is expecting? Simon
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2nd July 2020, 18:22 | #88 | |
Can't help myself
Rover 75 CDTi 2005 Join Date: Jan 2018
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On balance, I'm still doubting the replacement brake switch not being the 100% correct one. We'll see though. (I'd far rather try changing the module in 15 seconds of comfort than draw more blood and bruises changing the brake switch yet again!!!). I didn't mention that the replacement I got from Rimmers had a manufacturing fault (one of the retaining clips on the holder was missing) which wasn't spotted until my mate took it out the bag to fit. I had to return to Rimmers to exchange it which wrote the day off and meant I ended up fitting it myself!! See - it is a conspiracy. Dougie.
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R75 C2 RJBLH Connoisseur CDTi Auto Saloon Built 08/02/2005 @14:57 hrs: Registered 26/08/2005 122nd of 141 built that day British Racing Green Pearlescent (HFF) Sandstone leather with black piping (SPJ) 137,000 miles Last edited by goltho; 2nd July 2020 at 18:30.. |
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2nd July 2020, 18:30 | #89 | ||
Doesn't do things by halves
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007
Location: Former Middlesex
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Thanks: 1,587
Thanked 3,749 Times in 3,181 Posts
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Quote:
Quote:
Simon
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"Whatever is rightly done, however humble, is noble." Sir Henry Royce. |
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2nd July 2020, 18:46 | #90 | ||
Can't help myself
Rover 75 CDTi 2005 Join Date: Jan 2018
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Good point, well presented. That was my bad - I misread pin 4 for pin 3 on C0775.
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Dougie. PS: Any comments from firefighters and/or electronics engineers are welcome. Undertakers need not apply.
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R75 C2 RJBLH Connoisseur CDTi Auto Saloon Built 08/02/2005 @14:57 hrs: Registered 26/08/2005 122nd of 141 built that day British Racing Green Pearlescent (HFF) Sandstone leather with black piping (SPJ) 137,000 miles |
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