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Thread: PCM Fan connections - not shown on GM schm. 2005 full size van pcm service# 12589462

  1. 05-29-2014 #1
    ca434sbc4
    ca434sbc4 is offline
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    PCM Fan connections - not shown on GM schm. 2005 full size van pcm service# 12589462

    I just finishing an engine swap - just bought HP tuners and have enable the fans in the tune - now the question is on what pins do the fan controls come out on? GM never used the electric fan control on the OEM install so the pins are not shown on the GM schematics.

    Anyone know?

    Sure would be nice to have a full description of ALL the pins on PCM.
    Last edited by ca434sbc4; 05-29-2014 at 11:18 PM.
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