ABS Pressure Warning Switch Fault & Blend Motors

This site contains affiliate links for which LandyZone may be compensated if you make a purchase.

midessex

New Member
Posts
23
A couple of Months ago, I had the ABS light up, it was diagnosed as the Pressure Switch.
I bought a second Hand Pressure Switch from Emmotts and fitted it, and all was ok.
The ABS Lights has come on again, this time the diagnostics state ABS Pressure Warning Switch, does any body know if this is the same as the Pressure Switch or another switch?
It would appear the sensor at the top of the reservior bottle on mine is broken, could this be classed as the Pressure Warning Switch?

The Left Hand Blend Motor was also diagnosed as Faulty, I bought a new Britpart one and connected it to the original cable, After a few minutes of driving the Handbook Symbol comes on and it is stuck blowing out hot air.
I asked the garage to calibrate it for me whilst doing the ABS fault, they said it came up with Blend Motor Circuit Fault and Heater Core Temp Circuit Fault.
Do you think there is a problem with the new Blend Motor or the Circuit feeding the Blend Motor, is there a way of checking the motor once installed or does it have to be callibrated first
 
You can use the diagnostic system (Testbook, Faultmate Extreme, Nanocom(?)) to force the blend motor to move.....if it still refuses to move then I would consider looking at the wiring or the HEVAC unit...

The Heater Core Temp sensor is a little sensor fixed with a clamp around one of the pipes coming through the bulkhead (were the O rings are).....
 
A couple of Months ago, I had the ABS light up, it was diagnosed as the Pressure Switch.
I bought a second Hand Pressure Switch from Emmotts and fitted it, and all was ok.
The ABS Lights has come on again, this time the diagnostics state ABS Pressure Warning Switch, does any body know if this is the same as the Pressure Switch or another switch?
It would appear the sensor at the top of the reservior bottle on mine is broken, could this be classed as the Pressure Warning Switch?

The Left Hand Blend Motor was also diagnosed as Faulty, I bought a new Britpart one and connected it to the original cable, After a few minutes of driving the Handbook Symbol comes on and it is stuck blowing out hot air.
I asked the garage to calibrate it for me whilst doing the ABS fault, they said it came up with Blend Motor Circuit Fault and Heater Core Temp Circuit Fault.
Do you think there is a problem with the new Blend Motor or the Circuit feeding the Blend Motor, is there a way of checking the motor once installed or does it have to be callibrated first

Switch in bottle is low level switch, fault could be the same switch you replaced gone wrong.

good read about hevac/blend motors here:Range Rover P38 Maintenance repair improvements and tips learned by experience by ownership.

get yourself a copy of RAVE, found in many threads and sticky in one of the forums and read about it all.
 
A couple of Months ago, I had the ABS light up, it was diagnosed as the Pressure Switch.
I bought a second Hand Pressure Switch from Emmotts and fitted it, and all was ok.
The ABS Lights has come on again, this time the diagnostics state ABS Pressure Warning Switch, does any body know if this is the same as the Pressure Switch or another switch?
It would appear the sensor at the top of the reservior bottle on mine is broken, could this be classed as the Pressure Warning Switch?

The Left Hand Blend Motor was also diagnosed as Faulty, I bought a new Britpart one and connected it to the original cable, After a few minutes of driving the Handbook Symbol comes on and it is stuck blowing out hot air.
I asked the garage to calibrate it for me whilst doing the ABS fault, they said it came up with Blend Motor Circuit Fault and Heater Core Temp Circuit Fault.
Do you think there is a problem with the new Blend Motor or the Circuit feeding the Blend Motor, is there a way of checking the motor once installed or does it have to be callibrated first
Thats How.....:D
 
Back
Top