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Old 05-15-2015, 02:31 PM   #1
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CEL code interpretation

Hi Guys
Can anybody assist in deciphering my CEL code please?
It is; "P1457 A/C Compressor Control - Below Lower Limit"
Could this be simply that the refrigerant charge is low or is it something more complicated?

many thanks
cheers
Drew

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Old 05-15-2015, 02:33 PM   #2
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Originally Posted by D3Raw View Post
Hi Guys
Can anybody assist in deciphering my CEL code please?
It is; "P1457 A/C Compressor Control - Below Lower Limit"
Could this be simply that the refrigerant charge is low or is it something more complicated?

many thanks
cheers
Drew
Model and year would be useful..............
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Old 05-15-2015, 02:37 PM   #3
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Red face More info

sorry guys.
1998 986 with 74,500 miles
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Old 05-15-2015, 05:58 PM   #4
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OK, most likely candidate is a wiring short to ground on the AC compressor clutch circuit. Check the control wire of the AC relay (pin 2 or terminal 85) for a short circuit to ground. If it is shorted, you are going to need to trace the harness looking for the short.
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Old 05-15-2015, 06:12 PM   #5
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Thanks

Thank you
Cheers
Drew

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