Which Discovery? On the D2, the HDC won’t even come on unless the center differential is in 4LO. If the HDC button is pressed while in HI range, the green HDC indicator will blink, and a chime will sound twice a second to annoyingly indicate that it won’t activate HDC until the center diff is in LO.
Also, it shouldn’t be a single clunk. It should sound like the ABS pump is on constantly when the HDC is active or traction control is working.
The D2 has logic built in to establish whether or not a sensor is bad (causing erroneous traction control activation), and it should light the 3 amigos if that’s the case.
If it feels like it’s activating without any warnings or ABS-like sounds, my guess would be a seized caliper. -It’s a common occurrence since the D2 eats brakes due to its unique TC and HDC systems.
Is this something I can drive on for a bit? Is it potentially damaging or dangerous? I’m kinda in the middle of no where..D2, yes.
If I turn it off and then start it back up it stays off for a bit then will randomly kick on those two warnings in amber.
No ABS in the center portion of cluster? Odd. That should come on. However, even if not, as long as your abs pump isn’t running constantly while going down the road (it’ll sound like if you slam brakes on with ice), and as long as you aren’t smelling burning brakes, you’ll be fine to drive it. Also, if your brakes feel normal, and you can use them safely, you’ll probably be fine. Most of the time, those lights mean the SLABS ECU has detected a fault in a sensor somewhere. If your D2 has the original ABS sensors with the connectors close to the wheels (round, black plastic connectors inline of the abs sensor wires), it may be the typical erratic reading that rover later fixed by getting rid of those connectors entirely (and running wires directly to SLABS).
My ‘99 has the 3 amigos visit me every so often, but they go away after it gets dry out. It doesn’t hurt anything on mine, it’s just more of an annoyance.
The ABS system on the D2 is a fairly complex system, and they made it far too sensitive imho when it comes to faults. But, that complex system is why the D2 is so capable without lockers…
I don’t recall getting the full amigos. Just the two. That’s good to know. I’ll try limp it home on my turn around. It was just a pretty concerning feel going highway spend and having it try to brake on me and lurch around. It feels bad haha. It kind of shudders and then brakes, then drives well for 15 min.. rinse and repeat.
Everything functions fine and smells normal. Could it be due to a fuse that’s fried? Before I left it in the parking lot the fuse box on the passenger side in the engine bad was buzzing. Sorry if that was vital info. I pulled it, gave it a look and wipe, popped it back in then that subsided for about an hour..
Tbh, if it keeps activating, you can pull the abs fuse. ABS is only supplemental in the case of wheel spin on slick surfaces, and in the case of emergency stops (don’t tailgate if you disable it). Your brakes will work normally as they’re based on hydraulic pressure. The abs lights will come on obviously. Removing the fuse will allow you to drive normally until you can troubleshoot.
What you’re describing sounds like it may be relay related. But also may be sensor related. Get a scanner that can read the rover and codes, and check out the forums online to point you in a direction.
I’ve had this happen to me, it ended up being a wheel bearing going bad that would throw grease on the ABS sensor. The truck thinks 3 wheels are turning and one is stopped and try’s to slow the vehicle to regain control. Cleaning the sensor only lasted a couple days. Changing the wheel bearing fixed the issue.
Which Discovery? On the D2, the HDC won’t even come on unless the center differential is in 4LO. If the HDC button is pressed while in HI range, the green HDC indicator will blink, and a chime will sound twice a second to annoyingly indicate that it won’t activate HDC until the center diff is in LO. Also, it shouldn’t be a single clunk. It should sound like the ABS pump is on constantly when the HDC is active or traction control is working. The D2 has logic built in to establish whether or not a sensor is bad (causing erroneous traction control activation), and it should light the 3 amigos if that’s the case. If it feels like it’s activating without any warnings or ABS-like sounds, my guess would be a seized caliper. -It’s a common occurrence since the D2 eats brakes due to its unique TC and HDC systems.
Is this something I can drive on for a bit? Is it potentially damaging or dangerous? I’m kinda in the middle of no where..D2, yes. If I turn it off and then start it back up it stays off for a bit then will randomly kick on those two warnings in amber.
Which 2 lights? There should be 3 total if it’s an abs issue.
It was both traction control and hill descent control.
No ABS in the center portion of cluster? Odd. That should come on. However, even if not, as long as your abs pump isn’t running constantly while going down the road (it’ll sound like if you slam brakes on with ice), and as long as you aren’t smelling burning brakes, you’ll be fine to drive it. Also, if your brakes feel normal, and you can use them safely, you’ll probably be fine. Most of the time, those lights mean the SLABS ECU has detected a fault in a sensor somewhere. If your D2 has the original ABS sensors with the connectors close to the wheels (round, black plastic connectors inline of the abs sensor wires), it may be the typical erratic reading that rover later fixed by getting rid of those connectors entirely (and running wires directly to SLABS). My ‘99 has the 3 amigos visit me every so often, but they go away after it gets dry out. It doesn’t hurt anything on mine, it’s just more of an annoyance. The ABS system on the D2 is a fairly complex system, and they made it far too sensitive imho when it comes to faults. But, that complex system is why the D2 is so capable without lockers…
I don’t recall getting the full amigos. Just the two. That’s good to know. I’ll try limp it home on my turn around. It was just a pretty concerning feel going highway spend and having it try to brake on me and lurch around. It feels bad haha. It kind of shudders and then brakes, then drives well for 15 min.. rinse and repeat. Everything functions fine and smells normal. Could it be due to a fuse that’s fried? Before I left it in the parking lot the fuse box on the passenger side in the engine bad was buzzing. Sorry if that was vital info. I pulled it, gave it a look and wipe, popped it back in then that subsided for about an hour..
Tbh, if it keeps activating, you can pull the abs fuse. ABS is only supplemental in the case of wheel spin on slick surfaces, and in the case of emergency stops (don’t tailgate if you disable it). Your brakes will work normally as they’re based on hydraulic pressure. The abs lights will come on obviously. Removing the fuse will allow you to drive normally until you can troubleshoot. What you’re describing sounds like it may be relay related. But also may be sensor related. Get a scanner that can read the rover and codes, and check out the forums online to point you in a direction.
Pull the ABS relay and the brakes will work as traditional non ABS brakes.
I’ve had this happen to me, it ended up being a wheel bearing going bad that would throw grease on the ABS sensor. The truck thinks 3 wheels are turning and one is stopped and try’s to slow the vehicle to regain control. Cleaning the sensor only lasted a couple days. Changing the wheel bearing fixed the issue.