Chapter 2 Troubleshooting
2.3 Error Code FIP
2-51
FIP1.7 024-371 MCU - ESS Communication Fail
Step Check and Action Yes No
Parts considered to be the cause
PWBA MCU (PL18.2.2)
PWBA ESS (PL18.1.2)
HARNESS ASSY ESS (PL18.3.3)
1
Check connector connection
Check the connection between the PWBA MCU
and the PWBA ESS.
Is the HARNESS ASSY ESS (P/J20-P/J421) con-
nected securely?
Go to Step 2.
Securely connect the
HARNESS ASSY ESS
(P/J20-P/J421)
2
Check after replacing the HARNESS ASSY ESS
Replace the HARNESS ASSY ESS.
Does an error occur?
Go to Step 3. End of work.
3
Check after replacing the PWBA MCU
Replace the PWBA MCU. (REP 18.2)
Does an error occur?
Replace the
PWBA ESS.
(REP18.1)
End of work.
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