Sharp AX-1100 Service Manual page 29

5. EE12 Engine thermistor failure
Is the connectors between the thermistor (Engine), and wire harness disconnected or short circuited?
Measure the thermistor (Engine) resistance using a tester with the thermistor
connector pulled out of the control unit.
The thermistor (engine) resistance is within its appropriate range.
About 200 k at
Are there disconnection, breakage and short circuit in the engine heater
connections (the engine terminals and control unit)?
Is there rating voltage between the engine heater terminals?
Is the engine heater normal to meet the following requirements?
Insulation resistance: One (1) M or more at 500 VDC
Dielectric strength: 1000 V for one (1) minute
Leakage current: 0.3 mA or less
Resistance (in cold condition): 58.0 to 62.9
Replace the engine unit.
✩ Before starting the P.W.B. unit replacement, make sure to refer to "Before replacing the Printed Wiring Board" in page 2-3.
NO
About 10 k at About 1 k at
YES
NO
YES
NO
YES
NO
YES
Connect/repair the terminal(s) or replace the harness.
NO
The monitored interlock switch is
in the door open position.
NO
Is the engine thermal cut-out
normal?
YES
YES
Replace the control unit.
10 – 4
AX1100(R)
Connect/repair the connector(s) or replace
the thermistor/harness.
Replace the thermistor (Engine).
YES
Adjust the latch.
NO
Replace the engine
thermal cut-outt