15-370 X PIO Initialization Failure 1
Communication Failure.
Procedure
Switch the power off then on. The problem continues.
Y
N
Return to Service Call Procedures.
Check the connectors on the IIT/IPS PWB (PL 18.3) and the ESS PWB (PL 13.1). If the check
ia OK, replace the ESS PWB (PL 13.1). If the problem continues, replace the IIT/IPS PWB (PL
18.3).
Status Indicator RAPs
15-370, 15-371
15-371 X PIO Initialization Failure 2
Communication Failure.
Procedure
Switch the power off then on. The problem continues.
Y
N
Return to Service Call Procedures.
Check the connectors on the IIT/IPS PWB (PL 18.3) and the ESS PWB (PL 13.1). If the check
ia OK, replace the ESS PWB (PL 13.1). If the problem continues, replace the IIT/IPS PWB (PL
18.3).
6/02
2-252
Prelaunch Training/Review
DC1632/2240