Fan Override - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 06-08-2010, 07:41 AM   #11
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Glad to hear it, and I couldn't understand how anything should be bad w/o blowing a fuse.
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Old 06-11-2010, 06:18 PM   #12
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After performing this mod on my 1998 Olds Regency, it should be noted that it will cause the Check Engine Light to Illuminate. To be more specific, code P1562, "Fan 2 Relay Control Circuit Malfunction". This is because the PCM sees the High Speed Fan Relay active, even though it has not commanded the ground output to energize the high speed relay.

Just a heads up.

Nick
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