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Ok I'm an idiot. I started the car and then everything worked. I didn't realize it had to be running to operate the windscreen heater and seat heaters. On the plus side I just had a new windscreen installed and ready for winter

I'll check again. I didn't look that carefully...

Still working on the 2002 P38. I have previously posted and fixed the ABS issue with a new (used) fuse box replacement, all is good there. I have replaced the broken heater core using the short cut method. My issue is with the hevac control unit. Mine did nothing basically and did not light up...

Yes I think I put the fix in the range Rover section but the fix was replacing the fuse box with a used one from ebay. As soon as I turn the ignition on the pump began working and all lights went out (ABS light goes out once I start driving as expected) At least now I have a new accumulator...

SOLVED!!! Thanks for all the help! After replacing everything involved with the brake system, I finally purchased a used fuse box on eBay in really good shape. Immediately the brake pump came on and abs, brake and TC lights went out. Such a relief. Now to get the hevac working, or at least...

Thanks. The relay kicks on and pump runs when I apply power directly to the black/yellow wire at the plug for the pressure switch. I've tried two other pressure switches (used) and I suppose with the age of these cars it possible that all of them are bad. I'm doubtful but it's possible. I have...

I have checked the wires to the pump and switch and the pump will power on and I can get the ABS relay to kick on with power to the black/yellow wire. I haven't messed with the wheel sensors yet. Do you think a faulty wheel sensor could cause the brake pump not to come on?

Update: No luck so far. Found another used pressure switch no change. I did put power directly to the black/yellow wire in the plug and it energized the relay and pump turned on. It would not turn the pump on if I put power to the black/yellow wire (from the back if the plug) if it was plugged...

ABS ECU was swapped with an older one, I think a '99 car. The spare switch I got is used and was part of a whole brake pump unit from ebay. I ordered another new old stock switch that has never been used hoping it works or at least rule that out. I took out the fuse box and couldn't find any...

Well I figured I'd update this in case anyone was having a hard time falling asleep. The pipes from the engine bay just wouldn't line up. Someone has been in there before and I guess got things out of wack. So I cut the ends off the pipes and put them into the heater core and then tightened up...

Still working on the P38. Replacing the heater core which was broken. I have the new core in the matrix for for the life of me cannot get the pipes to seat correctly to screw the bracket on. Am I missing something? It's so close but just won't line up.

Does anyone know the proper procedure for testing the pressure switch? I have mine plus two used ones but one is from a 1994 Jaguar which I doubt would work anyway. A definitive test if anyone knows how to do that would be great before I search for another part.

I know this is 11 years old now but wondering if grounding the BY wire energizes the abs relay on the fuse box and therefore turns on the pump?

Thanks. Nothing burning but I did find a melted blower fan relay when I bought it. The brakes seemed to be working fine regardless. That's another issue I'm working on. I can't see how it would be related but this all happened right after I cleaned the maf sensor and the plug with electronic...

So I know a lot had been written on the ABS issues with the Range Rover p38 and I have read everything I can find and am still stumped. 2002 Range Rover P38 LHD. Here is a list of my symptoms and everything I have tried... Car running great, no brake issues, occasionally abs brake and TC...

Sorry quick edit from last post. *So I know a lot has been written on the ABS issues with the Range Rover P38

So I know a lot had been written in the ANS issues with the Range Rover p38 and I have read everything I can find and am still stumped. 2002 Range Rover P38 LHD Here is a list of my symptoms and everything I have tried... Car running great, no brake issues, occasionally abs brake and TC lights...