Genie S-40 Service Manual page 164

October 2013
Code Problem
551
Max Governor Speed
Override
552
FPP1 Low Voltage
553
FPP1 Higher than IVS Limit
611
COP Failure
612
Invalid Interrupt
613
A/D Loss
614
RTI 1 Loss
615
Flash Checksum Invalid
616
RAM Failure
631 External 5V DC Ref
Lower than Expected
632 External 5V DC Ref
Higher than Expected
655
RTI2 Loss
656
RTI3 Loss
Part No. 102521
Cause
ECM needs to be re-programmed OR throttle is
sticking open OR there are air leaks between the
throttle body and cylinder head.
Loose wire connections to ECM OR ECM is faulty.
Engine harness wiring and/or connections open
or shorted to ground OR there is a faulty engine
sensor OR ECM is faulty.
Loose wire connections to ECM OR ECM is faulty.
S-40 • S-45
Section 5 • Fault Codes
FAULT CODES
Solution
Re-program ECM OR repair binding throttle
operation OR repair any air leaks between the
throttle body and cylinder head.
Locate and repair any engine harness wiring
damage or shorts to ECM to be sure they are
secure OR replace ECM.
Locate and repair any engine harness wiring
damage or shorts OR locate and troubleshoot or
repair faulty engine sensor OR replace ECM.
Locate and repair any engine harness wiring
damage or shorts to ECM to be sure they are
secure OR replace ECM.
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