STEP/SEQUENCE
RESULT
WHAT TO DO NEXT
TM 9-2320-363-20-1
Section 4
TROUBLESHOOTING CHARTS
E. FLASH CODE: 16
J1587 CODE: P111 3 - COOLANT LEVEL CIRCUIT FAILED HIGH (VOLTAGE HIGH)
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.
16-1 Sensor Check
Turn ignition off.
Engine will
Go to 16-3.
Disconnect CLS connector and
not start.
install a jumper between sockets A
and B of the CLS harness
connector.
Code 111/3 (and
Go to 16-2.
Attempt to start and run engine at
any other codes
idle.
except Code 111/4.
Read active codes.
Stop engine.
Code 111/4 (and
Go to 16-5.
any other codes).
16-2 Signal and Ground
Circuit Check
Turn ignition off.
Less than or
Go to 16-7.
Disconnect the vehicle harness
equal to ohms.
connector.
Read resistance between socket
Greater than
Either the CLS signal line (ckt
H3 (ckt#115) on the vehicle
5 ohms or open.
#115) or the battery ground
harness connector and a good
line is open. Repair open.
ground.
Then go to 16-30.
16-3 Check if Ignition
Fuse Blown
Check if the ignition fuse/circuit
Blown/open fuse
Replace fuse or reset circuit
breaker is blown or open.
or circuit breaker.
breaker. Then go to 16-4.
Fuse or circuit
Go to 16-4.
breaker is okay.
Change 3 3-345.211
