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Chapter 2 Troubleshooting
8
Checking the power to the FAN.
Disconnect J503 from the PWBA LVPS.
Is the voltage across P503-1pin <=> ground on the PWBA
LVPS, about +24 VDC when the interlock switch (HARN
ASSY INTERLOCK AIO) is pushed?
Replace the
DUCT FAN ASSY
AIO. (Refer to
REP8.8.)
Go to step 9.
9
Checking after replacing the PWBA LVPS.
Replace the PWBA LVPS. (Refer to REP8.9.)
Does the error still occur when the power is turned OFF and
ON?
Replace the KIT
PWBA MCU.
(Refer to
REP8.10.)
End of work.
Step Check
Remedy
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