Manifold Air Temperature Sensor (Mats) - Sea-doo RX Shop Manual

Section 05 ENGINE MANAGEMENT (DI)
Subsection 03 (COMPONENT INSPECTION AND ADJUSTMENT)
Voltage Test
Unplug magneto connector.
Check connector pins for corrosion or damage.
Remove and reinstall the safety lanyard to activate
the MPEM.
Check the voltage readings on the harness side as
follows:
CONNECTION
Pin 4 with engine ground
Pin 5 with engine ground
Pin 6 with engine ground
If voltage tests good, the CPS is defective and
needs replacement.
If voltage does not test good, perform the follow-
ing tests.
Resistance Test
Check the continuity of the wiring harness.
Disconnect the AMP plug connector number 2 on
the MPEM.
Using a multimeter, check continuity of circuits 6,
7 and 14.
If wiring harness is good, it could be either the CPS
or the MPEM. Try a new part one at a time. When
trying a new MPEM, refer to MPEM replacement
procedures elsewhere in this section.
Otherwise, repair the wiring harness/connectors
between AMP plug connector and the CPS.
Replacement
Remove tuned pipe.
Unscrew front engine support and slightly lift en-
gine to have access to magneto cover screws.
Block engine in this position.
Disconnect connector and remove magneto cover.
05-03-22
VOLTAGE
0 V ± a small mV
tolerance
12 V
5 V
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Remove CPS.
1. CPS inside magneto cover
Apply Loctite 243 on screw threads then install the
new CPS.
Reinstall remaining removed parts.
MANIFOLD AIR TEMPERATURE
SENSOR (MATS)
PTO SIDE THROTTLE BODY

1. Manifold air temperature sensor (MATS)

SMR2000-051-05-03A.FM