Help needed with boot not opening

StewartIngram · 7th September 2023, 07:06

Anybody got a wiring diagram for the saloon boot lock? I have RAVE but can't find it on there.
My boot can now only be opened by the key in the lock. The remote switch on the drivers door pillar doesn't work, nor the extra one I added ages ago on the boot chrome plinth. I suspect it is something I have done whilst playing with a reversing camera on the plinth - possibly pulled a wire off or wrongly connected wires.

trikey · 7th September 2023, 11:37

More likely to be a failed boot catch motor, I had the same once and had to swap out the motor.

Sent from my SM-G780G using Tapatalk

SD1too · 7th September 2023, 13:19

Quote:

Originally Posted by StewartIngram

Anybody got a wiring diagram for the saloon boot lock? I have RAVE but can't find it on there.

Look under 156 Body Control Unit Stewart. The boot switch and motor are shown separately.

Simon

StewartIngram · 7th September 2023, 19:19

Had another ferret around this afternoon - now fixed it! It was as I thought, my fault, I had left off an earth connection behind the boot lock motor. As built, there is a 4 wire connection fed into the boot lid on the rhs. This loom feeds the number plate lights (2 wires including an earth), and the lock motor (3 or 4 wires including an earth which splits into 2).
Some time ago I fitted another switch in the chromed number plate plinth to open the bootlid, basically in parallel with the A-post switch (2 wires including an earth). Then I renewed an aftermarket reverse camera (4 wires including an earth). It all was working until fairly recently. I decided to swop the number plate plate bulbs for leds, repair the plastic base of the lamp unit, and tidy up the mess of wiring around there. Restricted access, and some thin cables meant it really was a mess, and I ended up with an earth link between all the black wires which was missed off. Sorted now though.
As part of the investigation this afternoon, I removed the lock unit, lifted the lid (I couldn't get it right off though), and pulled the motor out. This tested ok on the bench. I clicked it back in position, it worked ok with wires direct to the 4-way plug, So back it went into the car, and I just traced the wiring to sort it.

7th September 2023, 07:06	#1
StewartIngram Gets stuck in Rover 75 Connoisseur 2.5 V6 auto Join Date: Jan 2008 Location: Chatteris, Cambridgeshire Posts: 902 Thanks: 320 Thanked 159 Times in 127 Posts	Help needed with boot not opening Anybody got a wiring diagram for the saloon boot lock? I have RAVE but can't find it on there. My boot can now only be opened by the key in the lock. The remote switch on the drivers door pillar doesn't work, nor the extra one I added ages ago on the boot chrome plinth. I suspect it is something I have done whilst playing with a reversing camera on the plinth - possibly pulled a wire off or wrongly connected wires.

7th September 2023, 11:37	#2
trikey Premium Trader Rover 75 Join Date: Nov 2010 Location: Devon Posts: 33,772 Thanks: 8,837 Thanked 14,831 Times in 8,030 Posts	More likely to be a failed boot catch motor, I had the same once and had to swap out the motor. Sent from my SM-G780G using Tapatalk __________________ Lest we forget..

7th September 2023, 19:19	#4
StewartIngram Gets stuck in Rover 75 Connoisseur 2.5 V6 auto Join Date: Jan 2008 Location: Chatteris, Cambridgeshire Posts: 902 Thanks: 320 Thanked 159 Times in 127 Posts	Had another ferret around this afternoon - now fixed it! It was as I thought, my fault, I had left off an earth connection behind the boot lock motor. As built, there is a 4 wire connection fed into the boot lid on the rhs. This loom feeds the number plate lights (2 wires including an earth), and the lock motor (3 or 4 wires including an earth which splits into 2). Some time ago I fitted another switch in the chromed number plate plinth to open the bootlid, basically in parallel with the A-post switch (2 wires including an earth). Then I renewed an aftermarket reverse camera (4 wires including an earth). It all was working until fairly recently. I decided to swop the number plate plate bulbs for leds, repair the plastic base of the lamp unit, and tidy up the mess of wiring around there. Restricted access, and some thin cables meant it really was a mess, and I ended up with an earth link between all the black wires which was missed off. Sorted now though. As part of the investigation this afternoon, I removed the lock unit, lifted the lid (I couldn't get it right off though), and pulled the motor out. This tested ok on the bench. I clicked it back in position, it worked ok with wires direct to the 4-way plug, So back it went into the car, and I just traced the wiring to sort it.