Engine Fault Codes - Gm And Ford Models - Genie S-60 HC Service Manual

February 2012 Section 4 • Repair Procedures
ENGINES
5-4
Engine Fault Codes -
GM and Ford Models
How to Retrieve Engine Fault
Codes
GM models:
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 the Genie Service Department for
assistance in retrieving fault codes.
Note: If the check engine light is on and the engine
is stopped, tag the machine and remove from
service. Contact service personnel immediately.
Note: If the check engine light is on and the engine
is still running, contact service personnel within 24
hours.
Ford models:
The ECM constantly monitors the engine by the
use of sensors on the engine. The ECM also uses
signals from the sensors to initiate sequential fuel
injection and make constant and instantaneous
changes to ignition timing, fuel delivery and throttle
position to maintain the engine's running condition
at its highest efficiency while at the same time
keeping exhaust emissions to a minimum. When a
sensor fails or returns signals that are outside of
set parameters, the ECM will store a fault code in
memory that relates to the appropriate sensor and
will turn on the Check Engine Light.
Refer to Section 5, How to Retrieve Engine Fault
Codes for your specific model of engine. Use the
Fault Code Chart within Section 5 to aid in
identifying the fault.
Part No. 77828 S-60 • S-65 • S-60 HC 4 - 43