Fan comes on at startup

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01-08-2024, 07:08 AM

cdma

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Fan comes on at startup

Why would the fan come on as soon as you turn the key on without the engine running. Temp outside is in the 30s

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01-08-2024, 07:42 AM

Parker 7

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There was a TSB that was done resulting in this response once ignition key rotation

To know that it was done .......

TSB coming

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01-08-2024, 08:01 AM

Parker 7

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See line # 5

14-06 (jagrepair.com)

You will see a jumper plug on the 2 wire freon pressure switch connector

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01-08-2024, 08:12 AM

cdma

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Hmm so what the TSB is saying is that in position II the fan will run? I know it only ran when it got hot on Big Red.

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01-08-2024, 08:26 AM

Parker 7

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Yes

The TSB probably only gets done if an issue is brought up to a Jaguar dealer

Mine was not done

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01-08-2024, 08:41 AM

motorcarman

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We performed the Single Pressure Switch – Service Modification on almost every car that came into the dealership.
I guess a few cars got through without the MOD.
Easy to do by 'shorting' the wires on the switch.

Attached Files

14-02 Air Conditioning Pressure Switches.pdf (26.5 KB, 9 views)

14-04 Cooling System ? Fan Fuse Failure.pdf (39.4 KB, 15 views)

14-06 Cooling System Fan Fuse Failure.pdf (39.5 KB, 9 views)

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cdma (01-08-2024), Parker 7 (01-08-2024), piper 888 (01-09-2024)

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