Engine Fault Codes - Gm And Ford Models; How To Retrieve Engine Fault Codes - Genie S-65 Service Manual

Section 4 • Repair Procedures
ENGINES
5-4
Engine Fault Codes -
GM and Ford Models
How to Retrieve Engine Fault
Codes
When an engine malfunction is detected by the
Electronic Control Module (ECM), a fault code is
recorded and the check engine light will turn on at
the ground controls. Special equipment is required
to retrieve fault codes stored within the ECM.
Contact Genie Industries Service Department for
assistance in retrieving fault codes.
GM models:
If the check engine light is on and
the engine is stopped, tag the
machine and remove from service.
Contact service personnel
immediately.
If the check engine light is on and
the engine is still running, contact
service personnel within 24 hours.
Ford models:
Perform this procedure with the
key switch in the off position.
1 Open the ground controls side cover and locate
the run/test toggle switch on the side of the
ground control box.
2 Pull out the red Emergency Stop button to the
on position at both the ground and platform
controls.
4 - 30
3 Quickly activate and release the start toggle
switch/button. Do not start the engine.
4 Move and hold the run/test toggle switch to the
test position.
Result: The check engine light should turn on.
The check engine light should begin to blink.
5 Continue to hold the run/test toggle switch in the
test position and count the blinks.
6 Refer to Section 5, Fault Codes , for definition of
engine fault codes.
S-60 • S-65
If any fault codes are present, the
ECM will use the check engine
light to blink a three digit code.
It will blink the first digit of a three
digit code, pause, blink the second
digit, pause, and then blink the
third digit. For example: the check
engine light blinks 5 consecutive
times, blinks 3 times and then 1
time. That would indicate code
531. There will be a longer pause
between codes.
Once a fault code has been
retrieved and the repair has been
completed, the ECM memory must
be reset to clear the fault code
from the ECM. See How to Clear
Engine Fault Codes from the ECM.
Part No. 77828
July 2005
REV C