Kohler — Wire the communication module board in the DEC 3+ controller
Installation · DEC 3+ controller communication module
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
- Attach the 24-position ribbon cable GM32632 inline connector to communication module board P9.
- Attach the 10-position ribbon cable GM21340 to communication module board P8 and main circuit board P7.
- If GM49791-2 gauge drive circuit board was previously installed, reconnect cable P10 to the communication module board.
- For high battery voltage, connect communication board HBV harness GM35318 to T27 lead and terminal TB5-12.
- Connect user-supplied battery charger high battery voltage contacts to the remaining GM35318 terminal and TB5-6.
- For EPS Supplying Load, connect ATS emergency position auxiliary contacts to terminals TB5-3 and TB5-9.
- Make additional user-selected connections for user-defined digital inputs 1 and 2 to TB5.
Specs & values
- TB5-3 FridayParts $2399.99 ATS Position Input Return
- TB5-4 User 1 Input Return
- TB5-5 FridayParts $2799.99 User 2 Input Return
- TB5-6 User 3 Input Return (reserved for high battery volts on DEC 3+ controllers)
- TB5-9 ATS Position Input
- TB5-10 User 1 Input
- TB5-11 User 2 Input
- TB5-12 User 3 Input
- Wire gauge vs. length same as RSA III DC power/signal wiring table (22 to 14 AWG)
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.