5-27
Engine control unit and component
c. Remove the water pressure sensor,
and then connect a pressure pump “1”
and the special service tool “2”.
d. Apply positive pressure to the water
pressure sensor slowly, and then mea-
sure the output voltage at the specified
pressures.
e. Turn the main switch or power switch
to OFF, and then disconnect the spe-
cial service tool and pressure pump.
Input voltage
5 V
Orange (Or)–Black (B)
Pressure pump “1”
(commercially available)
Test harness EJ–ll–3 “2”
90890-06913
Output voltage at 392 kPa (3.92
kgf/cm², 56.8 psi) (reference data)
2.5 V
Output voltage at 784 kPa (7.84
kgf/cm², 113.7 psi) (reference da-
ta)
4.5 V
Blue/Black (L/B)–Black (B)
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