Section 07
ENGINE MANAGEMENT (4-TEC)
Subsection 03
(COMPONENT INSPECTION AND ADJUSTMENT)
SMR2002-078 _07_03A.FM
07-03-19
CRANKSHAFT POSITION
SENSOR (CPS)
1. CPS connector
Ensure that information center works. Needles
will sweep, LED and LCD segments will turn on
when the safety lanyard is installed. Check for
RPM display at the information center while crank-
ing in engine drowned mode. Press and HOLD
throttle lever then press start/stop button. 800-
1000 RPM should display. Otherwise perform the
following tests.
NOTE:
Take into account that a CPS fault can be
triggered by bent or missing encoder wheel teeth.
First check fault codes then check the teeth con-
dition if necessary. See below.
Disconnect CPS wiring harness connector. Probe
terminals coming from CPS while cranking en-
gine. Voltage should be within 1-2 Vac. Otherwise,
inspect wiring and replace CPS if wiring is good.
Resistance Test
Disconnect the CPS plug connector from the wir-
ing harness and check the resistance of the sensor
itself.
The resistance should be between 190
Ω
and 290
Ω
.
Otherwise, replace the CPS.
If resistance tests good,
reconnect
the CPS and
disconnect the EMS ECU connector A on the EMS
ECU.
Using a multimeter, recheck resistance value be-
tween terminals 5 and 19.
If resistance value is correct, try a new EMS ECU.
Refer to EMS ECU REPLACEMENT procedures
elsewhere in this section.
If resistance value is incorrect, repair the connec-
tors or replace the wiring harness between EMS
ECU connector and the MATS.
Replacement
Disconnect connectors and remove the PTO cov-
er. Refer to PTO HOUSING/MAGNETO in ENGINE
section.
Remove CPS.
1. CPS inside PTO cover
Apply Loctite 243 on screw threads then install the
new CPS. Torque to 10 N•m (89 lbf•
in
).
Reinstall remaining removed parts.
1
R1503motr169A
R1503motr182A
5
19
1
R1503motr170A
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