The only downside is that if I want to connect a normal diagnostic tool like pscan and monitor the CANbus at the same time (for example to correlate live diagnostic data with CANbus packets) then I'm going to have to use Y lead to connect both tools at the same time. As the two tools are using...

I have done some CANbus reverse engineering of the A/C and put the results here https://www.landyzone.co.uk/land-rover/freelander-ev.360880/post-5594736 I'm a bit confused by it though.

is it possible that it's the instrument panel that actually decides whether the A/C clutch should be engaged or not? so 0x615:B0:1xxxxxxx means "dash button pressed" and 0x615:B0:x1xxxxxx means "dear engine ECU, please engage the A/C compressor clutch"? I doubt myself though because on the...

if you get the A/C cold enough that it starts cycling on and off 0x615:B0 goes to 1xxxxxxx which is the same as button pressed but no gas. It's very odd and makes me wonder if I have really understood it.

The xxxxxx being evap temp sensor was I think false. Both the xxxxxx in B0 and B1 seem to relate to how hard the A/C is working. Basically the harder it's working, the higher the numbers. I wonder if they are actually refrigerant pressure? The xxxxxx seems to report all the time, whether...

concerning 0x615: B1. ignition on but engine not running when I press the A/C switch B0 reacts but B1 doesn't, however, with the engine running I get the following:- pressure sensor disconnected: when A/C button on it goes to F0 pressure sensor connected: when A/C button is pressed it goes to...

with my K1.8 I get B0: 07 - A/C OFF and 87 with A/C ON so 0xxxxxxx=off and 1xxxxxxx=on. Edit. I just tried our TD4. with the refrigerant pressure switch disconnected on the TD4 I get the same as the K1.8 with the pressure switch connected I get the same as what you originally posted. So, it...

The entire dash has to come out to get to the EWS. It's a pig of a job. The best solution IMHO is to wait for Landrover to supply a new key. My understanding is that they order them precoded to the vehicle so that the new one just works.

I am seeing the same CANbus messages whether I tap at the engine ECU or at the cluster. My understanding is that the pins are simply shorted on the ABS controller. I tapped into the CANbus behind the radio. I stripped half an inch of insulation off of each wire without cutting it, folded the...

The Freelander K1.8 evap sensor is 5.3 Kohm at 22 deg C. So I don't think it's a switch, probably a thermistor or something. I will need to disconnect it on the TD4 and put different resistances in whilst monitoring the CANbus messages so I suppose either the cluster or the centre console will...

The evap sensor is connected to the BCU. So the BCU sends evap temp to the IPK over K line and then the IPK sends it to the MEMS3 over CANbus? wow that's nuts

1. reverse engineer CANbus signals for A/C inputs (switch, pressure evap sensor) that come from the TD4 cluster. 2. connect the A/C pressure evap sensor to the cluster on the 1.8K, like it is on the TD4 and see if makes the same CANbus signals, or not. 3. reverse engineer the 75 CANbus signals...

This is very useful. thanks! I am thinking that I might do some CANbus tapping on our TD4. I would like do this non-destructively though. Anyone know if a manual TD4 still has the cruise control plug even if cruise isn't present? that would be an easy place to tap into CANbus. Any other...

another oddity is that the a/c pressure sensor goes to the instrument pack on a TD4, like it does on a 75, but straight to the engine ECU on 1.8K Freelander.

I suppose that the last resort would be to decouple the A/C completely from the engine ECU. I could just take the signal from the dash switch, feed it via the evap sensor and the pressure sensor so that the signal only gets through if it's "good" and feed that to the A/C clutch relay making...

On the Rover 75 the two pin "evaporator sensor" goes to C0662-3 on the BCU, not directly to the MEMS3 as in a FL1, so that's an important difference that I have to fix. I think that the Rover 75 ECU must be expecting some CANbus signal from the BCU for this sensor and not a direct connection...

The only wiring diagram that I have for a K1.8 Freelander is for a year 2002 LHD. According to that:- C0275-4 on the A/C switch goes to C0233-13 on the instrument panel. I don't see anything else to do with A/C going the instrument panel. When you say "two a/c switches" what do you mean by the...

Osgood-Schlatters. Had it since I was a teenager. I got away with about 25 years of driving with a clutch until it became a problem. What's the range of an electric FL1? If this auto thingy doesn't work then I suppose it could be a plan B.

Duty cycle is "on/off", but just many times a second. 0% would be completely off and 100% would be completely on, if the ECU actually ever sets them to 0% or 100%, which I don't know.

Freelander 1 TD4. Actually pretty good, SWMBO drives it but hates paying ULEZ charges. Freelander 1 K1.8. Rusty sills, clutch and not a diesel therefore SWMBO stalls it and it hurts my knee. Rover 25. Clutch eventually hurts my knee and motorway driving requires ear defenders. Not a "nice"...