EFI SYSTEM-ELECTRONIC THROTTLE BODY (ETB)
56
62 690 05 Rev. HKohlerEngines.com
Diagnostic Aid #11 SPEED CONTROL-CAN
Communications
(engine speed does not change when requested)
Condition
● Speed request from OEM CAN controller is not being
received by engine. Consult OEM service information
for OEM diagnostics.
● Bad connection in engine connectors (ETB/equipment
connector).
● Stuck/damaged ETB assembly.
Diagnostic Aid #12 ETB
(ETB does not cycle when key is switched from off to on)
Condition
● Blown power fuse
● Bad electrical connection
● Stuck throttle plate
● Defective throttle
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