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Chapter 2 Troubleshooting
FIP-1.59 042-700: IOT Over Heat Stop
Step Check
Remedy
Yes No
Possible causative parts:
SENSOR HUM (PL8.1.10)
PWBA MCU (PL8.3.6)
HARNESS ASSY L SIDE MG AIO (PL3.1.18)
1
Checking the connectors for connection.
Check the connections between the PWBA MCU and
SENSOR HUM.
Are P/J20 and P/J201 connected surely?
Go to step 3.
Reconnect the
connector(s) P/
J20 and/or P/
J201 surely, then
go to step 2
2
Does the error still occur when the power is turned off and
on?
Go to step 3. End of work.
3
Checking the HARNESS ASSY L SIDE MG AIO for
continuity.
Disconnect P/J20 from the PWBA MCU.
Disconnect P/J201 from the SENSOR HUM.
Is each cable of P/J20 <=> P/J201 continuous?
Go to step 4.
Replace the
HARNESS ASSY
L SIDE MG AIO.
4
Checking the output power of SENSOR HUM.
Disconnect P/J20 on the PWBA MCU.
Is the voltage across ground <=> J20-4pin on the PWBA
MCU, about +5VDC?
Replace the
SENSOR HUM.
(Refer to REP8.6.)
Replace the KIT
PWBA MCU.
(Refer to
REP8.10.)
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