54
54-13
#263 Inspection of engine speed sensor
• Measure the resistance values between terminals 1 and 2.
• If the measured value deviates from the standard value, replace
the sensor. (See Gr13E.)
#274 Inspection of water separator sensor
• If any fault is found, replace the sensor. (See Gr13A.)
#350 Inspection of control unit and other units
• Since the units alone cannot be readily checked in the off–vehi-
cle state, check the harness, switch and other related parts in
each system.
• If any fault is not found in the related parts, and the problem still
remains in the system, replace the control units or other units.
Standard value (at 20°C) 125.5 ± 17 Ω
Condition Continuity terminal
ON (when coolant quantity is ap-
prox. 100 cm
3
or more)
1–2
OFF –
#250 to #349 SENSOR, #350 to #409 CONTROL UNIT
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