xyz switch ?what and where is it
#3
It is on the left side of the transmission. As the shifter is moved, a cable moves the switch and various contacts make or break, telling the tranny computer what the driver has selected. The switch assembly can build up gunk inside from constant exposure to AC drains or wading. Can be taken apart, cleaned out, re-sealed. The RAVE shop manual has more info on this part.
#4
If so, lots of things can cause these problems besides a malfunctioning switch.
#5
#6
Here's a picture of one I just sold on eBay. At least you'll know what you're looking for along the left side of the transmission body. It mounts to the same stud the shifter cable is attached to. It's held in place by the cable (and it's 13mm nut) as well as a couple of 10mm bolts. Should you need to replace it, the hardest thing, at least in my experience, is unplugging the the switch. Space is cramped but you can remove and reinstall an XYZ switch in under 30 minutes.
Land Rover Discovery Series II Transmission XYZ Switch 1999 00 01 02 03 04 | eBay
Land Rover Discovery Series II Transmission XYZ Switch 1999 00 01 02 03 04 | eBay
#7
I have no check engine lights knock on wood after replacing the 2 front 02 sensors.. the battery is a walmart 660 cca battery. is that enough? my connections are great. and it doesn't do it all the time but once every other day. I will get those blinking lights and if I bring it back to park turn off/back on it will clear the issue. still battery? oh and is there a write up on how to clean the xyz switch and what to clean it with
#8
When they are blinking stop at an auto parts store for a free code read, and write down the numbers and post back. Don't think it is the battery if it is fairly new, and you have 13.8-14.4 volts across it at idle. Loose cables, and corroded cables both at the battery and where they tie to the frame can be issues. Some codes wait for two or four drive cycles before coming back. I believe you have use contact cleaner to clean out the switches. Don't know if yours will unbolt or need rivits drilled out.
#10
I stand to be corrected but I believe:
P0705 Transmission Range Sensor Circuit Malfunction (PRNDL INPUT)
P0441: Evaporative Emission Control System Incorrect Flow
The PO705 is telling you that there is a malfunction in the circuit but does not necessarily mean that it is the switch as other things can cause the fault.
The second code, 0441 is unrelated to your transmission and could indicate a stuck or clogged evap purge valve.
The thing to remember is the codes just tell you the area effected and there can be lots of things that contribute or cause the problem that turns on the check engine light.
P0705 Transmission Range Sensor Circuit Malfunction (PRNDL INPUT)
P0441: Evaporative Emission Control System Incorrect Flow
The PO705 is telling you that there is a malfunction in the circuit but does not necessarily mean that it is the switch as other things can cause the fault.
The second code, 0441 is unrelated to your transmission and could indicate a stuck or clogged evap purge valve.
The thing to remember is the codes just tell you the area effected and there can be lots of things that contribute or cause the problem that turns on the check engine light.