Genie S-40 Service Manual page 162

October 2013
Code Problem
245
Camshaft Sensor Noise
253
Knock Sensor Open
254
Excessive Knock Signal
311
Injector Driver #1 Open
312
Injector Driver #1 Shorted
313
Injector Driver #2 Open
314
Injector Driver #2 Shorted
315
Injector Driver #3 Open
316
Injector Driver #3 Shorted
321
Injector Driver #4 Open
322
Injector Driver #4 Shorted
351 Fuel Pump Loop Open or
High Side Short to Ground
352 Fuel Pump High Side
Shorted to Power
MegaJector Delivery
353
Pressure Higher Than
Expected
MegaJector Delivery
354
Pressure Lower Than
Expected
355
MegaJector
Communication Lost
361
MegaJector Voltage
Supply High
362 MegaJector Voltage
Supply Low
Part No. 102521
Cause
Camshaft position sensor wiring and/or
connections open or shorted OR there is a poor
system ground connection OR sensor is faulty.
Knock sensor wiring and/or connections open or
shorted OR sensor is faulty.
Knock sensor wiring and/or connections open or
shorted OR there is excessive engine vibration
OR sensor is faulty.
Open wiring and/or connections to fuel injector #1
OR fuel injector #1 is faulty OR ECM is faulty.
Wiring and/or connections to fuel injector #1 is
shorted OR fuel injector #1 is faulty OR
ECM is faulty.
Open wiring and/or connections to fuel injector #2
OR fuel injector #2 is faulty OR ECM is faulty.
Wiring and/or connections to fuel injector #2 is
shorted OR fuel injector #2 is faulty OR
ECM is faulty.
Open wiring and/or connections to fuel injector #3
OR fuel injector #3 is faulty OR ECM is faulty.
Wiring and/or connections to fuel injector #3 is
shorted OR fuel injector #3 is faulty OR
ECM is faulty.
Open wiring and/or connections to fuel injector #4
OR fuel injector #4 is faulty OR ECM is faulty.
Wiring and/or connections to fuel injector #4 is
shorted OR fuel injector #4 is faulty OR
ECM is faulty.
Open wiring and/or connections to fuel pump OR
fuel pump power shorted to ground OR fuel pump
is faulty.
Wiring and/or connections to fuel pump shorted to
power OR fuel pump is faulty.
Fuel pressure too high OR LPG lockoff not opening
completely OR the line between the MegaJector
and carburetor is kinked or restricted or is leaking
OR engine cooling system is not operating properly
OR MegaJector is faulty.
Fuel pressure too low OR LPG lockoff not opening
completely OR the line between the MegaJector
and carburetor is kinked or restricted or is leaking
OR engine cooling system is not operating properly
OR MegaJector is faulty.
The ECM doesn't get any response from the
MegaJector, or an incorrect response for 500ms
period or longer.
The MegaJector detects voltage greater than 18
volts for 5 seconds anytime the engine is cranking
or running.
The MegaJector detects voltage less than 9.5 volts
for 5 seconds anytime the engine is cranking or
running.
S-40 • S-45
Section 5 • Fault Codes
FAULT CODES
Solution
Be sure system ground connections are in place
and secure OR repair wiring and/or connections
to sensor OR replace sensor.
Repair wiring and/or connections to knock sensor
OR replace knock sensor.
Check for excessive engine vibration OR repair
wiring and/or connections to knock sensor OR
replace knock sensor.
Repair wiring and/or connections to fuel injector #1
OR replace fuel injector #1 OR replace the ECM.
Repair wiring and/or connections to fuel injector #2
OR replace fuel injector #2 OR replace the ECM.
Repair wiring and/or connections to fuel injector #3
OR replace fuel injector #3 OR replace the ECM.
Repair wiring and/or connections to fuel injector #4
OR replace fuel injector #4 OR replace the ECM.
Repair wiring and/or connections to fuel pump OR
replace fuel pump.
Check fuel pressure OR repair LPG lockoff OR
repair the line between the MegaJector and
carburetor OR repair engine cooling system OR
replace the MegaJector.
Check CAN circuits for continuity and shorts to
power or ground and for continuity and repair as
necessary OR replace the MegaJector.
Repair charging system OR replace the
MegaJector.
Repair VBAT power or ground circuit to ECM and
MegaJector OR replace battery OR repair
charging system OR replace the MegaJector.
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