STEP/SEQUENCE
RESULT
WHAT TO DO NEXT
TM 9-2320-363-20-1
Section 4
TROUBLESHOOTING CHARTS
E. FLASH CODE:
86 (Cont'd)
J1587 CODE:
P73.3 PUMP PRESSURE CIRCUIT FAILED HIGH - (Below)
P108.3 BAROMETRIC PRESSURE CIRCUIT FAILED HIGH - (TBD)
86-8
Final Check
Reconnect all connectors.
Code 73/3.
Reprogram ECM. Then
Turn ignition on.
go to 86-30.
Clear codes.
Start engine and run PGC in
No codes.
Repairs are complete.
"PRESSURE" mode for one minute
or until "CHECK ENGINE" light
Any codes.
Go to START-1, pg 3-345.41.
comes on.
except Code 73/3.
Stop engine.
Check "ACTIVE CODES."
86-30
Verify Repairs
Turn ignition off.
(No codes).
Repairs are complete.
Reconnect all connectors.
Turn ignition on.
Code 73/3 (and
All system diagnostics are
Clear codes.
any other codes).
complete. Please review this
Note status of "Check Engine"
section from the start to find
light.
the error.
If "CHECK ENGINE' light does not
come on, run PGC in pressure
Any codes
Go to START-1, pg 3-345.41,to
mode for 1 minute or until "CHECK
except Code 73/3.
service other codes.
ENGINE" light comes on.
Read INACTIVE codes.
Change 3 3-345.401
