Why is my Jaguar climate control valve not working?

If this condition is not attended to the result could be that the valve solenoids can draw excessive current and damage the Air Conditioning Climate Control Module (CCM) circuit board. Earlier models apparently were more tolerant to the higher currents and less likely to be damaged. http://www.jagtv.co.uk/videos/jaguar-… Loading…

How to drain the jagrepair Jaguar cooling system?

Disconnect the auxillary coolant flow pump electrical connector. Remove the dual coolant flow valve: 1.) Remove the retaining bolt. 2.) Remove the dual coolant flow valve. Remove the dual coolant flow valve hoses. To install, reverse the removal procedure.Tighten to 10 Nm.

Where is the bleed valve on a Jaguar?

Rev the RPM’s up a few times, check coolant tank and keep filling up as necessary. Repeat this until coolant tank is a hot mark, close coolant tank bleed screw and cap and you’re all set. Now, the bleed valve. It’s on a pipe just to the lower right of the throttle body at the front of the engine (it is marked).

How does the hot air tank work on a Jaguar?

To open it, turn it a 1/4 turn clockwise. This allows air / water to run down a pipe at the back of it, back to the expansion tank. With the valve, open re-fill the system until water starts to come back to the tank via the pipe off the back of the bleed.

How to diagnose a heater leak in a Jaguar?

1. Unbolt the Coolant/Water Expansion Tank, set it aside so it doesn’t block access to the Heater Valve. 2. Loosen the bolt that secures the Heater Valve to the car. 3. Rotate the Heater Valve to get access to its connector. Procedure A (This one is messy. We recommend that you do Procedure B instead.):

Why is the solenoid on my Jaguar heater not working?

It is an active low circuit, so when the DCCV sees Ground at either the LH and/or RH pin, the respective solenoid within the DCCV activates. Case 1: Temperature setting “Lo” = CCM output ON (grounded) = solenoid ENERGZIED = solenoid valve CLOSED = coolant flow to heater core impeded = heater core NOT HOT when A/C is ON.

How many versions of the Jaguar control module are there?

The 1999 – (early 2002) modules, though still susceptible to damage, have a more robust design that reduces the chance of said damage. For 2003-2008 models, there are three (3) versions of the module.

Why is my DCCV not working on my Jaguar?

The information provided was that the DCCV in a relaxed mode (no power/control) is a wide open heat mode. With the plug removed I had the same results, no heat to the driver’s side. At this point I replaced the DCCV. I was a little apprehensive that the DCCV was the cause until I took it apart and found out how it worked.

What’s the temperature of the heater on a Jaguar?

What I found is that the heat in the car was about 20° cooler on the driver’s side with the control panel set to 85°. I went to the DCCV and checked the temperature on the three heater tubes going back to the firewall.

What’s the difference between thermal and pressure switch on Jaguars?

According to Stefan Schulz, Jaguars began being fitted with this type from the factory in the mid-80’s. Note that the thermal type switch is normally open and connects to ground in the event of trouble, while the pressure type is normally connected to ground and opens in the event of trouble.

Where to put the air conditioner compressor on a JAG?

Several people, including Victor Naumann and Harry Trafford, have pointed out that a block of wood positioned between the V and the top of the radiator can be very helpful to hold the compressor forward and above its normal position while you’re working.

Where is the compressor protection circuit on a 1983 XJ-S?

COMPRESSOR PROTECTION CIRCUIT — A-6: Just below the inlet and outlet connections on the A-6 compressor is a sensor held in place with a C-clip, with a wire connected to it. On the 1983 XJ-S, this is a thermally-operated switch that shorts to ground in the event that there is trouble with the freon system.

What kind of compressor does a Jaguar air conditioner use?

AIR CONDITIONER COMPRESSOR: Up through 1992, the Jaguar A/C compressor was labelled “Harrison” but was in fact the standard GM item referred to as an A-6 — and therefore comparatively cheap to replace. In fact, it is generally recommended to simply replace the compressor rather than attempt even the simplest repairs.

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