Function Test Mode Active on GCON Controller
What does GENIE-01-01 mean?
The GENIE-01-01 (GCON) EV fault code means: Function Test Mode Active on GCON Controller. This is a minor severity code.
Common Symptoms
- Platform display shows 01.01 in GG.SS fault code format on the GCON LCD
- Machine powers up and responds to controls but some cutouts or interlocks feel different than normal
- Height and load sensing cutouts may not stop the platform at normal travel limits
- Ground controls may allow functions that are normally restricted at full height
- Machine operates at normal speed but without expected automatic stops
- Audible beeper may cycle once at power-on to indicate a non-standard mode is active
- Returning the machine to normal AUTO mode clears the display and restores all cutouts
Probable Causes (Ranked by Likelihood)
- Technician or inspector intentionally entered function test mode via the GCON menu to verify cylinder sequencing or limit switch operation Very Likely
- Service mode was activated through the Genie Service Tool during a prior inspection and was not exited before returning the machine to the rental fleet Likely
- Operator accidentally navigated into the GCON service menu during startup and selected function test without realizing it Possible
- GCON software retained a test mode flag in non-volatile memory after a battery disconnect or controller reset without a clean exit Possible
- A wiring fault or shorted input at the GCON mode-select pins is holding the controller in a test state Less Likely
Step-by-Step Diagnostic Procedure
Step 1. Read the display carefully. The GCON LCD will show 01.01 on the platform panel. This is an informational status code, not a hardware fault. Do not begin replacing components until you confirm the machine is actually in function test mode.
Step 2. Power the machine OFF completely at the ground controls using the key switch, wait 10 seconds, then power back ON. Watch the GCON display at startup. If 01.01 reappears, the mode flag was saved in GCON memory and needs to be cleared through the menu.
Step 3. Navigate the GCON platform menu to the Service or Test Mode section. On most GS-series and S-series units, hold the Enter button for 3 seconds at the main status screen to enter the service menu. Locate the Function Test or Test Mode option and set it to OFF or EXIT. Confirm the change and return to the main screen.
Step 4. If you do not have the service menu PIN or the menu option is grayed out, connect a laptop running Genie Service Tool via the J1939 port at the ground controls. Genie Service Tool will show current mode flags and allow you to deactivate function test mode without a full controller reset.
Step 5. After exiting test mode, cycle the key switch OFF then ON and verify the GCON display no longer shows 01.01. Run a full function check from the ground controls: verify platform raises to full height and that the upper limit cutout stops the platform automatically at the rated height limit.
Step 6. Test the load sensor or tilt cutout if your model has one. With test mode active these may have been bypassed. Confirm they respond normally now that you are back in standard operating mode.
Step 7. If 01.01 returns after a clean exit and key cycle, inspect the GCON mode-select wiring harness at the ground control box for a shorted pin or damaged connector. Measure continuity between the mode-select input pin and chassis ground. Any reading below 10k ohms with the harness unplugged from GCON indicates a wiring short that needs repair before the controller will hold normal mode.
Step 8. If the code cannot be cleared through the menu or Genie Service Tool, the GCON controller may need a firmware reload or controller replacement. This requires Genie dealer support and is beyond field repair.
Frequently Asked Questions
What does Genie code 01.01 mean?
It means the GCON controller is in Function Test Mode. This is a service state used by technicians to check cylinder sequencing and limit switches without normal operating cutouts interfering. It is not a hardware fault, but the machine should not be rented or operated by an end user while this code is active.
Can the lift still run with code 01.01 showing?
Yes, the lift will operate, but height cutouts, load sensing, and other automatic stops may be bypassed or altered. That makes it unsafe for normal rental use. Exit function test mode before releasing the machine.
How much does it cost to fix code 01.01?
In most cases it costs nothing. A technician exits the mode through the GCON service menu or via Genie Service Tool in a few minutes. If the GCON controller is holding the flag due to a wiring fault or corrupted memory, dealer reprogramming runs $150-$400. A full GCON replacement is $800-$1,800 plus labor, but that is rare for this code.
Will the lift work normally for the next customer after this code appears?
Not until function test mode is properly exited. Once you clear the mode through the GCON menu, cycle the key, and confirm the 01.01 code is gone, all normal cutouts are restored and the machine is safe to return to service.