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Section
4
TM 9-2320-363-20-1
E. CODE
130 COOLANT
LEVEL SENSOR (CLS) SIGNAL
VOLTAGE
LOW
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-II was started at step Start-1 (page 3-121) and you have now been referred here.
STEP/SEQUENCE
13-1
Sensor
Check
l Turn ignition off.
l Disconnect CLS.
l Turn ignition on.
l Start engine.
l Read active codes.
l Stop engine.
13-2
Check
CLS
Connectors
l Inspect terminals at the CLS
connectors
(sensor side and
harness side) for damage; bent,
corroded, and unseated pins or
sockets.
13-3
Check
for Short to
Return
Line
l Turn ignition off.
l Disconnect
vehicle
harness
connector
at the
ECM.
l Read resistance between sockets
C and D on the ECM side of the
CLS harness connector.
RESULT
WHAT TO DO NEXT
Code 16 (and
Go to 16-1, page 3-17.
any other codes).
Code 13 (and
Go to 13-3, page 3-205.
any other codes).
Terminals and
Replace CLS module, page 4-240.
connectors
are okay.
Then go to 13-30.
Problem found.
Repair terminals/connectors,
page 3-2. Then go to 13-30.
Less than or
Signal line (ckt#115)
is shorted
equal to 10,000 ohms.
to the CLS return line. Contact
Direct Support. Then go to 13-30.
Greater than
Go to 13-2.
10,000 ohms or open.
3-205
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