Operation CHARM
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Mercury
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1991
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Cougar/XR7 V6-232 3.8L
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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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X - Integrated Relay Control Module
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X18 - No Engine Cooling Fan: Check Power Supply to IRCM
X18 - No Engine Cooling Fan: Check Power Supply to IRCM
Pinpoint Test X18:
