(S) Trans Sport mode light flashing

[Disco Xpedition]

Hey guys, I started my D2 this morning and the green sport mode light was flashing and when driving did not shift to second gear(Safe Mode). I parked it and had to ride my bike to work. Any ideas?!!!!!!

Thanks

[Bamafan485]

nope but i'm going through the same thing right now. It's getting looked at today so i will let you know.

[Disco Mike]

Assuming you have a good battery with good clean connections, it is time to have your trucked towed, not driven to the shop.
Mike

[Bamafan485]

Well I just talked to my mechanic and he put transmission fluid in it and it is running fine. He said he got a couple of codes from it but i'm not sure what they are yet. I hope your problem is this minor.

[Disco Mike]

You want to know specifically what the codes were. How many miles on the truck and how low was it? You might want to consider changing or flushing the fluid if it was too low and or old. Letting it run low can kill a tranny.
Mike

[Bamafan485]

its got roughly 145k. I haven't picked it up yet so i don't know how low the fluid was or what the codes were, but i will find out.

[Bamafan485]

So, I just got another call from the mechanic. I've got a broken crankshaft position sensor. He talked to the LR dealer in birmingham and ordered the part. Shipping, labor, diagnostic, and the actual sensor is going to cost me 355. There were only four codes showing and two were for the sensor and two were for the low tranny fluid. Not as cheap and easy as low transmission fluid like i thought but nothing too expensive. Maybe this will help you diagnosing your problem.

[Disco Mike]

Will, that sensor only costs about $80 and a 1/2 labor, some body is getting rich off of you.
Mike

[Bamafan485]

how much should the shipping and diagnostics cost?
Thanks for the help

[auwesman]

Shipping from Birmingham? Less than $20.00. Price of the sensor is $79.95
SENSOR - CRANKSHAFT (BOSCH) | Land Rover Engine Parts at RoverParts.com
However, I can tell you the stealership in Bham is known for ripping people off. I don't even bother calling them to ask for parts anymore, they're always WAY over priced.
So, $80.00 for parts, $20.00 for shipping, and a half hour labor...should have been significantly less.

[Disco Xpedition]

I started mine last night and light went away with the key cycle. I will ck trans fluid level. Drove normal.

Will, Just buy the sensor and change it yourself. 1 10mm nut for the cover and 2 8mm nuts for the sensor.(D/S of engine in front of trans housing upper side)

[Bamafan485]

Just got mine from the shop. Apparently when someone had worked on this thing before i bought it, they dropped some kind of brass sleeve in the tranny. This is what caused my sensor to break. I have never had any work done in that area so that thing has been in there for at least a year!

I would have done this myself like you guys said, but I am not very handy when it comes to working on vehicles. I would love to learn more about it but have never really had the opportunity to learn.

[Captain Ducman]

Is the Crankshaft sensor and the Mode sensor the same part?

My '03 DII w 67k miles just gave me a P0705 after giving me a solid shift from R to D, also the D no longer displays on the instrument panel, but R N 1 2 3 will.

TIA,
Steve

[Captain Ducman]

I found this on another website. This is the condition I am experiencing, I got a price from LR of $169 for the Gear Position Switch. Anyone have experience with these symptoms? Is this the correct fix for this fault?

TIA ,
Steve

Gear position switch

Gear position switch The gear position switch is mounted on the side of the transmission and contains internal switches. This switch has four input lines known as the W, X, Y, and Z lines. The gear position switch provides the TCU with the current driver-selected gear position. By analysing the status of these inputs, the TCU calculates which gear is most suitable for the current conditions.

Range Rover has only three input lines from the position switch: X, Y, and Z. New Discovery uses the fourth line for improved electrical diagnostics and better lever position information (intermediate gear lever positions, i.e. to detect when the gear lever is moving between positions). This helps to align mechanical and electrical tolerances.


Fault finding diagnostics

If there is a fault, the automatic transmission will attempt to drive as normally as possible. However, if it is not safe to continue changing gear, a limp home mode will be selected.

Limp home mode differs depending upon the vehicle conditions when the fault is diagnosed. If high range is selected, then the default condition is third, if stationary when the fault occurred and fourth, (if moving) when the fault occurred. If low range is selected, then the system will attempt to maintain the current gear until the ignition supply is removed. This is in case the fault occurs whilst negotiating a steep gradient.

If there is a fault which either prevents all gears being used or disables the kick-down facility, the sport and manual lights will flash at the same time. This indicates to the driver that the vehicle has entered limp home mode. This mode will continue until the ignition is turned off. When the ignition is turned back on and the engine has been cranked, the TCU will complete a self-test. If the fault has rectified itself the automatic gearbox will resume normal operation and the sport and manual lights will no longer flash. If the fault is still evident, then the vehicle should be taken to the nearest Land Rover dealer as soon as possible for the fault to be investigated and rectified. It is important to appreciate that if a fault has been rectified or is no longer present but the fault code has not been deleted, the sport and manual lights will continue to flash until the TCU has diagnosed the fault is no longer present.

If a fault exists that will not damage the transmission or cause inconvenience to the driver, no warning lights will illuminate but a fault code will be stored. If a driver does notice a slight change with the behaviour of the gearbox, this could be due to a fault of this type.

If a transmission fault exists that will increase the emissions of the vehicle, the malfunction indicator lamp (MIL) will illuminate (NAS models only).

If any of the above conditions are true, the software within the transmission ECM will have stored a fault code. After a fault code has been stored and the car has completed 40 warm-ups, (warm-up is defined as the engine coolant rising by at least 16�C and exceeding 70�C), then the vehicle fault code will be deleted from memory providing the fault does not reappear during this time. If the fault codes re-appear, this counter is reset and requires another 40 warm-ups before the fault is deleted automatically.

If the automatic transmission ECM is found to have been disconnected, the vehicle will have selected an hydraulic limp home mode. Reconnection must occur when the ignition is switched off. If the ECM was disconnected whilst the ignition was turned on, fault codes will have been stored within the ECM and TCU. These fault codes must be deleted using TestBook.

[Captain Ducman]

Anyone?