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Home >> Cadillac >> 1994 >> DeVille Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 4.6L >> Diagnostic Parameters >> Pcm Specific Input Codes >> PI87: Low Coolant Level Switch
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PI87: Low Coolant Level Switch

This input comes to PCM terminal No. 1B16. PI87 should be HI with sufficient coolant in the coolant overflow bottle and LO with coolant level.

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