STEP/SEQUENCE
RESULT
WHAT TO DO NEXT
TM 9-2320-363-20-1
Section 4
TROUBLESHOOTING CHARTS
E. FLASH CODE: 13
J1587 CODE: P111 4. COOLANT LEVEL CIRCUIT FAILED LOW (LOW VOLTAGE)
NOTE - This chart is only to be used if:
1) All basic mechanical checks and physical inspections have been performed with no problem found, and
2) Diagnosis of DDEC-III was started at step Start-1, pg 3-345.41 and you have now been referred here.
13-1 Sensor Check
Turn ignition off.
Code P111/3 (and
Go to 16-1.
Disconnect CLS.
any other codes).
Turn ignition on.
Start engine.
Code P111/4 (and
Go to 13-3.
Read active codes.
any other codes).
Stop engine.
13-2 Check CLS
Connectors
Inspect terminals at the CLS
Terminals and
Replace CLS. Then go
connector for damage; bent,
connectors are okay.
to 13-30.
corroded, and unseated pins or
sockets. Also ensure wires
Problem found.
Repair terminals/connectors.
are not reversed at the CLS.
Then go to 13-30.
13.3 Check for Short to
Ground
Turn ignition off.
Less than or
Signal line (ckt#115) is
Disconnect the vehicle harness
equal to 10,000 ohms.
shorted to ground (953).
connector at the ECM.
Repair short.
Read resistance between sockets
A & B of the CLS connector.
Then go to 13-30.
Greater than
Go to 13-2.
10,000 ohms or open.
Change 3 3-345.195
