Kohler — ECU Reset Procedure
Testing & diagnosis · Electronic Control Unit (ECU)
From a Kohler service manual covering: 32690-12, EKT730, EKT740, EKT745, EKT750. Check it applies to your exact model before use.
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Before you start
- This system will NOT reset when battery is disconnected.
Procedure
- Turn key/ignition OFF.
- Install Red wire jumper from Kohler EFI service kit onto service port.
- Turn key ON, then OFF; count 10 seconds.
- Turn key ON, then OFF; count 10 seconds a second time.
- Remove Red wire jumper.
- Turn key ON, then OFF; count 10 seconds a third time.
- ECU is reset.
- A TPS Learn Procedure must be performed after ECU Reset.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
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.