Kohler — Remove the gauge driver board in the DEC 3+ controller (if equipped)

Repair & overhaul

From a Kohler service manual covering: APM402, APM603, APM802, Decision-Maker 550, GM32644-KP1, GM62466-KP1, GM91356, KPC 1000, MPAC 1000, MPAC 1200, MPAC 1500, MPAC 750. Check it applies to your exact model before use.

Applies to: Kohler APM402, Kohler APM603

Procedure

1. Disconnect the 10-pin cable at the P8 connector on the circuit board.
2. Disconnect the 8-pin cable at the P10 connector on the circuit board.
3. Remove the existing three nuts and lock washers attaching the gauge drive circuit board to the indicator panel circuit board.
4. Remove existing 24-position ribbon cable 336428; it will not be reused.
5. Attach the end connector (nearest the inline connector) of new ribbon cable GM32632 to indicator panel circuit board P4.
6. Attach the other end connector of ribbon cable GM32632 to main circuit board P3.

Source: Kohler service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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