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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

  1. Turn key/ignition OFF.
  2. Install Red wire jumper from Kohler EFI service kit onto service port.
  3. Turn key ON, then OFF; count 10 seconds.
  4. Turn key ON, then OFF; count 10 seconds a second time.
  5. Remove Red wire jumper.
  6. Turn key ON, then OFF; count 10 seconds a third time.
  7. ECU is reset.
  8. 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.

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