Operation CHARM
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Mercury
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1994
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Cougar/XR7 V8-281 4.6L SOHC
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Testing and Inspection
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Pinpoint Tests
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Z - Intermittent
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Z175
Z175
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Measure the resistance from SPOUT jack to VPWR jack.
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Is resistance greater than 10K ohms?
Yes --
GO to
Z176.
Z176
No --
REPLACE the PCM.