Ski-Doo Ski Doo MX Z 2005 [280/1429] Ecm replacement

Ski-Doo Ski Doo MX Z 2005 [280/1429] Ecm replacement
Section 06 ENGINE MANAGEMENT (SDI)
Subsection 03 (COMPONENT INSPECTION, REPLACEMENT AND ADJUSTMENT)
ELECTRONIC MANAGEMENT
ECM REPLACEMENT
General
Prior to replacing a suspected ECM, ensure that all
the recommendations in the general introduction
of this section have been followed.
IMPORTANT: When the ECM is replaced, the
tether cord cap(s) and the Closed Throttle must
be reprogrammed/reset. Refer to their specific
section for adjustment.
To allow transferring the previous recorded infor-
mation from the old ECM to the new one, use the
vehicle communication kit (VCK) with the B.U.D.S.
software. Use Replace ECM in the ECM menu.
Follow instructions provided by the help system.
NOTE: If the old ECM can still communicate, it
must be read inside B.U.D.S. prior to removing it
from the vehicle to carry vehicle information and
history to the new ECM.
ECM Replacement
Disconnect battery cables.
WARNING
Battery BLACK (-) cable must always be dis-
connected first and connected last.
Disconnect both connectors from ECM.
A33I0HA
1
2
1. ECM
2. Retaining screws
Unscrew all retaining screws and remove the en-
gine ECM from its support.
Install the new ECM to the support.
Reconnect ECM connectors to ECM, and then bat-
tery cables.
Transfer the data from the previous ECM to the
new one using B.U.D.S. then proceed with the
required resets and reprogram tether cord cap(s),
ifyouwereunabletotransferthedata.
NOTE: If data cannot be transferred, manually en-
ter information in Vehicle tab.
After performing the required resets, ensure to
clear all faults from the newly replaced ECM.
Start the engine and increase engine speed above
6000 RPM to be sure no fault appears.
ENGINE WIRING HARNESS
1
A32CCQA
3
9
8
10
2
5
11
7
12
6
4
1. ECM
2. CTS connector
3. EGTS connector
4. Fuel injector connector (cylinder MAG side)
5. Ignition coil connector
6. Fuel injector connector (cylinder PTO side)
7. TPS connector
8. ATS connector
9. Engine connector
10.APS connector
11. KS connector
12.CPS connector
Resistance Test
Check continuity of the circuits according to the
wiring diagram in the WIRING DIAGRAMS section
of this manual.
If wiring harness is good, check the respective
sensor/actuator as described in this section.
Otherwise, repair the connectors, replace the
wiring harness or the ECM as diagnosed.
mmr2005-081 265

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