In one fell swoop my LR3 liftgate/tailgate is exhibiting the following two problems:
* No actuator operation (i.e. silence) when you press the exterior liftgate button
* When you force the liftgate manual override (simultaneously holding down the two lock/unlock buttons on the dash for 3+ seconds), it will partially unlock leaving the liftgate sticking out about a half-inch (still caught on the lock). If a second person gets their fingers underneath and gently pulls while another operates the overide again, you can get it fully open.
The scanner reports fault code B1C4223, which is described in 418-00 Module Communications Network - Diagnostics and Testing as:
Description
* Tailgate Release Switch #2
Possible Cause
* Tailgate glass release switch (SW2- number plate lamp and tail door switch) signal circuit short circuit to ground
* Tailgate glass release switch stuck/jammed
* Tailgate glass release switch failure
Action
* Refer to the electrical guides and check the tailgate SW2 unlock circuit. Check the switch operation, renew as necessary.
So the course of action is to diagnose the switch issue (switch itself, harness, etc.) and then see if the latch needs adjustment/repair.
But…
This all showed up when I picked up my LR3 from the shop for suspension repair. They'd found leaks in (and replaced) the air compressor and rear right air strut. Though I have to note the problem isn't fully resolved because its still sinking overnight (though not as bad)… grumble/grumble/grumble….
So I have one of these unfortunate issues where you leave your vehicle in for repairs, but it comes home with a new problem. I want to be fair to the shop and assume it's a coincidence, but I can't help that nagging feeling that 'something happened' while it was in the shop.
Quick question… does the tailgate wiring harness get routed anywhere near the rear struts? For example, on replacing a rear strut, is there any opportunity to affect the wiring harness for the tailgate (e.g. pinch a wire, etc.)?
Thanks.
Karl.
* No actuator operation (i.e. silence) when you press the exterior liftgate button
* When you force the liftgate manual override (simultaneously holding down the two lock/unlock buttons on the dash for 3+ seconds), it will partially unlock leaving the liftgate sticking out about a half-inch (still caught on the lock). If a second person gets their fingers underneath and gently pulls while another operates the overide again, you can get it fully open.
The scanner reports fault code B1C4223, which is described in 418-00 Module Communications Network - Diagnostics and Testing as:
Description
* Tailgate Release Switch #2
Possible Cause
* Tailgate glass release switch (SW2- number plate lamp and tail door switch) signal circuit short circuit to ground
* Tailgate glass release switch stuck/jammed
* Tailgate glass release switch failure
Action
* Refer to the electrical guides and check the tailgate SW2 unlock circuit. Check the switch operation, renew as necessary.
So the course of action is to diagnose the switch issue (switch itself, harness, etc.) and then see if the latch needs adjustment/repair.
But…
This all showed up when I picked up my LR3 from the shop for suspension repair. They'd found leaks in (and replaced) the air compressor and rear right air strut. Though I have to note the problem isn't fully resolved because its still sinking overnight (though not as bad)… grumble/grumble/grumble….
So I have one of these unfortunate issues where you leave your vehicle in for repairs, but it comes home with a new problem. I want to be fair to the shop and assume it's a coincidence, but I can't help that nagging feeling that 'something happened' while it was in the shop.
Quick question… does the tailgate wiring harness get routed anywhere near the rear struts? For example, on replacing a rear strut, is there any opportunity to affect the wiring harness for the tailgate (e.g. pinch a wire, etc.)?
Thanks.
Karl.
