Sea-doo GTX Limited iS 255 2009, Shop Manual

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Section 04 FUEL SYSTEM
Subsection 02 (ELECTRONIC FUEL INJECTION (EFI))
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If any resistance value is incorrect, check wire
continuity between ECM and throttle body. If
continuity is good, replace throttle body.
If resistance values are correct, try a new ECM.
Refer to
ENGINE CONTROL MODULE (ECM)
in
this subsection.
CRANKSHAFT POSITION
SENSOR (CPS)
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TYPICAL
1. Crankshaft Position Sensor (CPS)
NOTE: Take into account that a CPS fault can
be triggered by a bent or missing trigger wheel
tooth. First check fault codes then CPS as per
following procedure; if it tests good, verify trigger
wheel teeth condition. Refer to
PTO HOUSING
AND MAGNETO in the ENGINE section.
CPS Voltage Test
To gain access to the CPS, remove the required
parts as described in
CPS REPLACEMENT.
Disconnect CPS connector.
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TYPICAL
Install the D.E.S.S. key on its post.
Briefly press the START button to wake up the
ECM.
Probe terminals while cranking, as shown.
CPS CONNECTOR MEASUREMENT
PIN VOLTAGE
1 2 Approximately 2.3 Vac
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TYPICAL
CPS Resistance Test
Disconnect CPS connector.
Probe terminals as follows.
CPS CONNECTOR MEASUREMENT
PIN
RESISTANCE
@ 20°C (68°F)
1 2 700 - 900
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