Sea-doo GTX Limited iS 255 2009, Shop Manual

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Section 02 ENGINE
Subsection 08 (LUBRICATION SYSTEM)
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BY-PASS FUNCTION
Blow-By Valve TOPS Switch Input
Voltage Test
Remove:
– Deck extension, refer to
BODY
subsection
– Air intake silencer, refer to AIR INTAKE SYS-
TEM subsection.
Disconnect the TOPS switch connector of the
blow-by valve.
Briefly press the START/STOP button to wake-up
the ECM.
Probe terminals as shown to check the voltage
output from the ECM.
TOPS SWITCH CONNECTOR VOLTAGE
Pins 2 and 3
Approximately
5 Vdc
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If voltage test is good, check the TOPS switch out-
put voltage.
If voltage test is not good, check the continuity of
the blow-by valve TOPS switch circuit.
NOTE: After voltage test, clear the fault codes in
the ECM using the B.U.D.S. software.
Blow-By Valve TOPS Switch Output
Voltage Test
Remove the blow-by valve.
Back-probe TOPS connector and check voltage
using the
FLUKE 115 MULTIMETER (P/N 529 035
868)
.
NOTE: To easily probe wire terminals through the
back of the connector, use the
FLUKE RIGID BACK
PROBES (P/N TP88)
or an equivalent.
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BLOW-BY VALVE IN NORMAL POSITION
1. Blow-by valve
2. RED probe into pin 2
3. BLACK probe into pin 1
TOPS SWITCH
CONNECTOR
BLOW-BY
VALVE
POSITION
VOLTAGE
Pin 1 and pin 2 Normal position 0.4 ± 0.1 Vdc
Pin 1 and pin 2 Upside down 4.4 ± 0.2 Vdc
Pin 2 and pin 3
Normal position
or upside down
Approximately
5 Vdc
Replace TOPS switch if not within specification.
Blow-By Valve TOPS Switch Circuit
Continuity Test
Disconnect the TOPS switch connector of the
blow-by valve.
Disconnect the connector A from the ECM.
Use the
ECM ADAPTER TOOL (P/N 529 036 166)
and
a multimeter.
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