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Chapter 2 Troubleshooting
FIP-1.84 091-916: IOT PHD CRUM ID Error
Step Check
Remedy
Yes No
Possible causative parts:
PHD ASSY (PL4.1.21)
PWBA MCU (PL8.3.6)
HARN ASSY PHD XPRO (PL9.1.11)
1
Does the error still occur when the power is turned OFF and
ON?
Go to step 2. End of work.
2
Checking the PHD ASSY type.
Is the seated PHD ASSY for WC 6505?
Go to step 4.
Replace the PHD
ASY for WC 6505,
then go to step 3.
3
Does the error still occur when the power is turned OFF and
ON?
Go to step 4. End of work.
4
Checking after resetting the PHD ASSY.
Reseat the PHD ASSY.
Does the error still occur when the power is turned OFF and
ON?
Go to step 5. End of work.
5
Checking the connectors for connection.
Check the connectors between the PWBA MCU and PHD
ASSY.
Are P/J42 and P/J422 connected correctly?
Go to step 7.
Reconnect the
connector(s) P/
J42 and/or P/J422
surly, then go to
step 6.
6
Does the error still occur when the power is turned OFF and
ON?
Go to step 7. End of work.
7
Checking the HARN ASSY PHD XPRO for continuity.
Disconnect P422 from the PHD ASSY.
Disconnect J42 from the PWBA MCU.
Is each cable of P422 <=> J42 continuous?
Go to step 8.
Replace the
HARN ASSY PHD
XPRO.
8
Checking after replacing the PHD ASSY.
Replace the PHD ASSY. (Refer to REP4.6.)
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.
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