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)
15-5 Check OTS
Connectors
Inspect terminals at the OTS
Terminals and
Replace OTS. Then go
connector (both the sensor
connectors are okay.
to 15-30.
and harness side) for damage;
bent, corroded, and unseated
Problem found.
Repair terminals/connectors.
pins or sockets.
Then go to 15-30.
15-6 Check for Short
Turn ignition off.
Less than or
Signal line (ckt#133) is short-
Disconnect engine harness
equal to 10,000 ohms
ed to the return line (ckt#452)
connector at the ECM.
on either reading.
or battery ground. Repair
Read resistance between sockets
short. Then go to 15-30.
P3 (ckt#133) and Y2 (ckt#452)
on the engine harness connector.
Greater than,
Go to 15-8.
Also read resistance between
10,000 ohms or open
socket B and a good ground.
on both readings.
15-7 Check for Short.
Turn ignition off.
Less than or
Signal line (ckt#120) is short-
Disconnect engine harness
equal to 10,000 ohms
ed to the return line (ckt#452)
connector at the ECM.
on either reading.
or battery ground. Repair
Read resistance between sockets
short. Then go to 15-30.
R2 (ckt#120) and Y2 (ckt#452)
on the engine harness connector.
Greater than
Go to 15-9.
Also read resistance between
10,000 ohms or open
socket B and a good ground
on both readings.
Change 3 3-345.207
