STEP/SEQUENCE
RESULT
WHAT TO DO NEXT
TM 9-2320-363-20-1
Section 4
TROUBLESHOOTING CHARTS
E. FLASH CODE:
15
J1587 CODE:
P110 4 - COOLANT TEMPERATURE CIRCUIT FAILED LOW (LOW VOLTAGE)
OR:
P175 4 - OIL TEMPERATURE CIRCUIT FAILED LOW (LOW VOLTAGE)
15-8 Check ECM
Connectors
Check terminals at the ECM
Terminals and
Reprogram ECM. Then go
harness connector (both the ECM
connectors are okay.
to 15-30.
and harness side) for damage;
bent, corroded, and unseated
Problem found.
Repair terminals/connectors.
pins or sockets. Especially
Then go to 15-30.
terminals P3 and Y2 of the ECM
connector.
15-9 Check ECM
Connectors
Check terminals at the ECM
Terminals and
Reprogram ECM. Then go
harness connector (both the ECM
connectors are okay.
to 15-30.
and harness side) for damage;
bent, corroded, and unseated
Problem found.
Repair terminals/connectors.
pins or sockets. Especially
terminals R2 and Y2 of the ECM
connector.
15-30 Verify Repairs
Turn ignition off.
(No codes)
Repairs are complete.
Reconnect all connectors.
Turn ignition on.
Code 110 or 17514 (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
stay on, start engine and run until
Any other codes
Go to START-1, pg 3-345.41,
"Check Engine" light comes on
except Code 110 or 175/4.
to service other codes.
or for 1 minute. Stop engine.
Read inactive codes.
Change 3 3-345.209
