Fault Codes; Active Fault Codes; Occurred Fault Codes; Inactive Fault Codes - Can-Am 2011 commander 800R Shop Manual

Section 03 ELECTRONIC MANAGEMENT SYSTEM
Subsection 03 (DIAGNOSTIC SYSTEM AND FAULT CODES)
Limp Home Mode
When a major component of the EMS is not oper-
ating properly, limp home mode will be set.
Engine RPM will be limited and/or engine behav-
ior and control may be modified depending on the
cause
of the failure.
This mode allows the rider to return home, which
would otherwise not be possible without this ad-
vanced system.
LIMP HOME will be displayed in the multifunction
gauge and the CHECK ENGINE light symbol will
be on in the gauge.
FAULT CODES
A fault code is an indication that a glitch or mal-
function is detected by the monitoring system of
the vehicle.
A fault code consists of 5 digits that starts by a
letter followed by a 4 digit code that may be com-
prised of numbers and/or letters. The first letter
defines the type of fault code while the remaining
digits refer to a unique fault.
There are 2 types of fault codes used on the vehi-
cle:
— "P" for power train and related system faults
(Pxxxx)
— "U" for communication faults (Uxxxx)
There are 2 modules that generate and store the
fault codes:
— ECM (Engine Control Module)
— Multifunction Gauge.
The ECM stores mainly "P" codes and some "U"
codes.
The multifunction gauge stores a few "P" and "U"
codes.
When many fault codes that may or may not be
related to a specific system are set at the same
time, it is likely to be the result of low battery volt-
age, a burnt fuse(s) or a faulty relay.
NOTE: The faults detected are saved in the ECM
(Engine Control Module) or multifunction gauge
even if the battery is disconnected.
Fault Code States
Fault codes have 3 possible states:
— Active state
— Occurred state
— Inactive state.
All types of fault codes may be viewed in the
Faults page of B.U.D.S.
Only fault codes in an
active state may be viewed in the multifunction
gauge.
Active Fault Codes
An active fault code is an indication of a fault
that is presently active. The active fault may or
may not compromise normal operation of the
system(s) in question as indicated by the fault
code(s). Service action should be taken to correct
the problem that caused the fault code.
Once the cause of the active fault is corrected,
the fault code must be cleared using B.U.D.S. to
prevent it from being retained in memory.
Occurred Fault Codes
An occurred fault code indicates a fault that was
active, but no longer is. The occurred fault does
not presently affect system or component opera-
tion but is retained as a history of the faults that
were detected.
The fault may have been generated due to a
system or component that was momentarily op-
erating outside normal parameters. Repeated
occurred faults of this type should be considered
when troubleshooting a problem, and may require
that maintenance action be taken.
An occurred fault may also be generated when
disconnecting and reconnecting a component, re-
placing a burnt fuse, when the software update of
an electronic module has been carried out, or may
be due to a momentary high or low voltage.
Inactive Fault Codes
An inactive fault code represents a fault code that
is neither active, nor occurred. It is simply part of
a list of all possible faults that can be monitored
by the ECM and multifunction gauge, which may
become active or occurred if the monitoring sys-
tem detects an applicable fault. These codes can
be viewed in B.U.D.S.
How to Read Fault Codes Using
B.U.D.S. Software
1. Connect vehicle to the applicable version of
B.U.D.S. software, refer to COMMUNICATION
TOOLS AND B.U.D.S. SOFTWAREsubsection.
2. Click on the Read Data button.
3. Select the Faults tab.
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