I have the same issue, I am sure someone here knows the answer.

Wammers....You are correct as always, but as I was replacing all ball joints as well as fitting polybushes, the universal tool served both purposes. Although not ideal, it did the job.

I had to replace the ball joints & bushes on my P38 & decided to buy a Universal Ball joint kit from eBay. Although quite expensive at approx £80, if meant all of the bushes could be changed on the vehicle instead if removing them to take to a press. Worth considering in the long run.

If the screen is misting up with cool air, check the carpet isn't wet by the drivers feet. When my O rings were leaking causing the carpet to get damp, turning the fan on only helped to mist things up.

Update Followed Wammers suggestion, removed LH rear sensor, connected digital meter between connector pins & wiggled entire length of cable. There was no break in continuity so thought it must be the main loom. Before checking further, a quick inspection of the connector pins in the socket...

The Britpart/Lynx diagnostic system can be run on a Windows laptop.

Oh yes, sorry about that.

Thanks warmers. I take it continuity across the pins of sensor OK, open circuit bad. Volts across feed to sensor good, no volts bad.

4065 - sensor left hand rear (sensor dc failure, broken wire, sensor impedance too high/low) Current fault.

Took it for a run.... ABS Fault is still there. Tried to clear the fault & it wouldn't clear. Does this point more now to a broken wire?

Thanks guys Sensor disconnected, contacts cleaned, refitted, faults cleared. ABS Fault from message centre gone. Let's see if that's sorted it. Time will tell.

Rollo My diagnostics just showed the historical fault that was there initially. The heating system worked fine but clearing the fault finishes off the repair.

Diagnostics indicate LH rear fault. Live readings indicate stable voltages for other 3 sensors but LH rear fluctuates from 2.39v to 0v when idling & stationary. Does this confirm faulty sensor?

@rollo Well done, hopefully this will cure the book symbol as it did on mine. It will be worth checking on diagnostics as I found the original fault code still stored in memory even though the book symbol had gone. I then cleared the fault. That was then job done.

Be careful going to the toilet..... Lol

Rollo Copied from my receipt... 1 x Sensor Heater Temperature STC3256 (STC3256) = £17.84 That's the one.

@Rollo The sensor was purchased from Island 4x4 & arrived quickly. Fitting only involved removing lower dash panel on drivers side (4 screws). The sensor is up between the pipes behind the heater matrix. Release wiring connector, undo retaining clip & remove. Fitting is reverse. It is a bit...

Mick, I had intermittent book symbol on my 4.6 thor. Diagnostics indicated heater matrix temp sensor. £22 & 15 mins to fit. Sorted. Hope yours is the same. Eric

I recently had lack of power & turned out to be MAF sensor. See if your reader will display maf sensor reading. If it is low this could be your problem.

I have seen Sandy's new car. Extremely well sorted motor. He's right to be happy.