NHTSA ID Number: 10119530
Manufacturer Communication Number: 905-14
TSB/Document Date: 2017-10-15
Summary
905-14 Coolant Level Circuit Failed
9 05-14
1
9 05-14
SUBJECT
DATE
SPN 111 (CPC) (EPA07;EPA10;GHG14)
SPN 111 (CPC) (GHG14)
September 2014
SPN 111 (MCM) (EPA10) (GHG14)
Additions, Revisions, or Updates
Publication Number / Title
Platform
Section Title
Change
SPN 111/FMI 1 - EPA07 - EPA10 - GHG14
SPN 111/FMI 3 - EPA07 - EPA10 - GHG14
DDC-SVC-MAN-0084
DD Platform
SPN 111/FMI 4 - EPA07 - EPA10 - GHG14
SPN 111/FMI 6 - GHG14
This is an updated section, including
new float sensor, resistance values and
test procedures.
SPN 111/FMI 18 - GHG14
SPN 111/FMI 19 - EPA10 - GHG14
All information subject to change without notice.
9 05-14
Copyright © 2014 DETROIT DIESEL CORPORATION
3
2 SPN 111/FMI 1 - EPA07 - EPA10 - GHG14
2
SPN 111/FMI 1 - EPA07 - EPA10 - GHG14
Coolant Level Very Low
Table 1.
SPN 111/FMI 1
Description
Coolant level below normal range
Monitored Parameter
Coolant Level
Typical Enabling Conditions
Always on
Monitor Sequence
None
Execution Frequency
Continuous when enabling conditions met
Typical Duration
2 Seconds
Dash Lamps
CEL
Engine Reaction
None
Verification
Cycle Key
Check as follows:
1. Is the vehicle an EPA10 or newer model?
a. Yes; ensure Motor Control Module (MCM), Aftertreatment Control Module (ACM), and Common Powertrain
Controller (CPC) software levels are 7.6/8.6/R22 or higher. After reprogramming, clear faults. If they do not
become active, verify coolant level is correct and release the vehicle. If software levels are correct or faults
become active, Go to step 2.
b. No; Go to step 2.
2. Check the coolant level in the reservoir. Is the coolant level in the reservoir within limit (2) or (3)?
a. Yes; fill to proper level (1) with coolant. Go to step 3.
b. No; replace the Engine Coolant Level (ECL) sensor. Refer to section "Engine Coolant Level Sensor".
3. Check the following for leaks. Verify repairs.
a. Check for coolant leak at cylinder head gasket.
b. Check for coolant leak at air compressor head gasket.
c. Check for external coolant leak at hose connections.
d. Check for coolant in oil.
4
All information subject to change without notice.
Copyright © 2014 DETROIT DIESEL CORPORATION 9 05-14
9 05-14
e. Check for loose or faulty radiator cap.
f. Check cab heating system for leaks.
All information subject to change without notice.
9 05-14
Copyright © 2014 DETROIT DIESEL CORPORATION
5
3 SPN 111/FMI 3 - EPA07 - EPA10 - GHG14
3
SPN 111/FMI 3 - EPA07 - EPA10 - GHG14
Coolant Level Circuit Failed High
Table 2.
SPN 111/FMI 3
Description
Coolant level circuit signal above normal range
Monitored Parameter
Coolant Level
Typical Enabling Conditions
Always on
Monitor Sequence
None
Execution Frequency
Continuous when enabling conditions met
Typical Duration
2 Seconds
Dash Lamps
CEL
Engine Reaction
None
Verification
Cycle Key
6
All information subject to change without notice.
Copyright © 2014 DETROIT DIESEL CORPORATION 9 05-14
9 05-14
Check as follows:
1. Turn ignition OFF.
2. Disconnect the Engine Coolant Level (ECL) sensor.
3. Inspect sensor and harness connector for bent, spread, or corroded pins. Is any damage found?
a. Yes; repair as necessary. Verify repairs.
b. No; Go to step 4.
4. Is ECL a magnetic float type? Refer to Original Equipment Manufacturer (OEM) literature.
a. Yes; Go to step 5.
b. No; Go to step 6.
5. Measure the resistance between pins 1 and 2 of the ECL sensor with the sensor submerged (float up, circuit closed). Is
the resistance between 120 to 140 ohms?
a. Yes; Go to step 7.
b. No; replace the ECL sensor. Refer to section "Engine Coolant Level Sensor".
6. Measure the resistance between pins 1 and 2 of the ECL sensor. Is the resistance less than 600K ohms while
submerged?
a. Yes; Go to step 7.
b. No; replace the ECL sensor. Refer to section "Engine Coolant Level Sensor".
7. Turn the ignition ON (key ON, engine OFF).
8. Measure the voltage between pin 1, or pin A for magnetic float type, of the ECL sensor harness connector and ground.
Is the voltage above 4.0 volts?
a. Yes; repair the open circuit between pin 2 of the ECL sensor harness and ground. Verify repairs.
b. No; Go to step 9.
9. Turn the ignition OFF.
10. Disconnect the CPC #3 connector.
11. Inspect CPC #3 connector for bent, spread, or corroded pins. Is any damage found?
a. Yes; repair as necessary. Verify repairs.
b. No; Go to step 12.
12. Measure the resistance between pin 1 of the ECL harness connector and pin 11 of the CPC #3 connector. Is the
resistance greater than 5 ohms?
All information subject to change without notice.
9 05-14
Copyright © 2014 DETROIT DIESEL CORPORATION
7
3 SPN 111/FMI 3 - EPA07 - EPA10 - GHG14
a. Yes; repair the open circuit between pin 1 of the ECL sensor harness connector and pin 11 of the CPC #3
connector. Verify repairs.
b. No; replace the CPC. Refer to Original Equipment Manufacturer (OEM) literature.
8
All information subject to change without notice.
Copyright © 2014 DETROIT DIESEL CORPORATION 9 05-14
9 05-14
4
SPN 111/FMI 4 - EPA07 - EPA10 - GHG14
Coolant Level Circuit Failed Low
Table 3.
SPN 111/FMI 4
Description
Coolant level circuit signal below normal range
Monitored Parameter
Coolant Level
Typical Enabling Conditions
Always on
Monitor Sequence
None
Execution Frequency
Continuous when enabling conditions met
Typical Duration
2 Seconds
Dash Lamps
CEL
Engine Reaction
None
Verification
Cycle Key
All information subject to change without notice.
9 05-14
Copyright © 2014 DETROIT DIESEL CORPORATION
9
4 SPN 111/FMI 4 - EPA07 - EPA10 - GHG14
Check as follows:
1. Turn ignition OFF.
2. Disconnect the Engine Coolant Level (ECL) sensor.
3. Inspect sensor and harness connector for bent, spread, or corroded pins. Is any damage found?
a. Yes; repair as necessary. Verify repairs.
b. No; Go to step 4.
4. Disconnect the Common Powertrain Controller (CPC) #3 connector (21-pin).
5. Inspect CPC #3 connector for bent, spread, or corroded pins. Is any damage found?
a. Yes; repair as necessary. Verify repairs.
b. No; Go to step 6.
6. Measure the resistance across pins 1 and 2 of the ECL sensor harness side connector. Is the resistance greater than 10K
ohms?
a. Yes; Go to step 7.
b. No; repair the short between pin 1 and pin 2 of the ECL sensor harness side connector.
7. Measure the resistance between pin 1 of the ECL sensor harness connector and ground. Is the resistance greater than
10K ohms?
a. Yes; replace the ECL sensor. Refer to section "Engine Coolant Level Sensor".
b. No; repair the short to ground between pin 1(A) of the ECL sensor harness connector and pin 11 of the CPC #3
connector. Verify repairs. If fault returns, replace the CPC. Refer to Original Equipment Manufacturer (OEM)
literature.
10
All information subject to change without notice.
Copyright © 2014 DETROIT DIESEL CORPORATION 9 05-14
9 05-14
5
SPN 111/FMI 6 - GHG14
Coolant Level Sensor Circuit Failed Low
Table 4.
SPN 111/FMI 6
Description
Coolant level circuit signal below normal range
Monitored Parameter
Coolant Level
Typical Enabling Conditions
Always on
Monitor Sequence
None
Execution Frequency
Continuous when enabling conditions met
Typical Duration
2 Seconds
Dash Lamps
CEL
Engine Reaction
None
Verification
Cycle Key
All information subject to change without notice.
9 05-14
Copyright © 2014 DETROIT DIESEL CORPORATION
11
5 SPN 111/FMI 6 - GHG14
Check as follows:
1. Turn ignition OFF.
2. Disconnect the Engine Coolant Level (ECL) sensor.
3. Inspect sensor and harness connector for bent, spread, or corroded pins. Is any damage found?
a. Yes; repair as necessary. Verify repairs.
b. No; Go to step 4.
4. Disconnect the Common Powertrain Controller (CPC) #3 connector (21-pin).
5. Inspect CPC #3 connector for bent, spread, or corroded pins. Is any damage found?
a. Yes; repair as necessary. Verify repairs.
b. No; Go to step 6.
6. Measure the resistance across pins 1 and 2 of the ECL sensor harness side connector. Is the resistance greater than 10K
ohms?
a. Yes; Go to step 7.
b. No; repair the short between pin 1 and pin 2 of the ECL sensor harness side connector.
7. Measure the resistance between pin 1 of the ECL sensor harness connector and ground. Is the resistance greater than
10K ohms?
a. Yes; replace the ECL sensor. Refer to section "Engine Coolant Level Sensor".
b. No; repair the short to ground between pin 1(A) of the ECL sensor harness connector and pin 11 of the CPC #3
connector. Verify repairs. If fault returns, replace the CPC. Refer to Original Equipment Manufacturer (OEM)
literature.
12
All information subject to change without notice.
Copyright © 2014 DETROIT DIESEL CORPORATION 9 05-14
9 05-14
6
SPN 111/FMI 18 - GHG14
Coolant Level Low
Table 5.
SPN 111/FMI 18
Description
Coolant level below normal range
Monitored Parameter
Coolant Level
Typical Enabling Conditions
Always on
Monitor Sequence
None
Execution Frequency
Continuous when enabling conditions met
Typical Duration
2 Seconds
Dash Lamps
CEL
Engine Reaction
None
Verification
Cycle Key
Check as follows:
1. Is the vehicle an EPA10 or newer model?
a. Yes; ensure Motor Control Module (MCM), Aftertreatment Control Module (ACM), and Common Powertrain
Controller (CPC) software levels are 7.6/8.6/R22 or higher. After reprogramming, clear faults. If they do not
become active, verify coolant level is correct and release the vehicle. If software levels are correct or faults
become active, Go to step 2.
b. No; Go to step 2.
2. Check the coolant level in the reservoir. Is the coolant level in the reservoir within limit (2) or (3)?
a. Yes; fill to proper level (1) with coolant. Go to step 3.
b. No; replace the Engine Coolant Level (ECL) sensor. Refer to section "Engine Coolant Level Sensor".
3. Check the following for leaks. Verify repairs.
a. Check for coolant leak at cylinder head gasket.
b. Check for coolant leak at air compressor head gasket.
c. Check for external coolant leak at hose connections.
d. Check for coolant in oil.
All information subject to change without notice.
9 05-14
Copyright © 2014 DETROIT DIESEL CORPORATION
13
6 SPN 111/FMI 18 - GHG14
e. Check for loose or faulty radiator cap.
f. Check cab heating system for leaks.
14
All information subject to change without notice.
Copyright © 2014 DETROIT DIESEL CORPORATION 9 05-14
9 05-14
7
SPN 111/FMI 19 - EPA10 - GHG14
Coolant Level Low
Table 6.
SPN 111/FMI 19
Description
Coolant level below normal range
Monitored Parameter
Coolant Level
Typical Enabling Conditions
Always on
Monitor Sequence
None
Execution Frequency
Continuous when enabling conditions met
Typical Duration
2 Seconds
Dash Lamps
CEL
Engine Reaction
None
Verification
Cycle Key
Check as follows:
1. Is the vehicle an EPA10 or newer model?
a. Yes; ensure Motor Control Module (MCM), Aftertreatment Control Module (ACM), and Common Powertrain
Controller (CPC) software levels are 7.6/8.6/R22 or higher. After reprogramming, clear faults. If they do not
become active, verify coolant level is correct and release the vehicle. If software levels are correct or faults
become active, Go to step 2.
b. No; Go to step 2.
2. Check the coolant level in the reservoir. Is the coolant level in the reservoir within limit (2) or (3)?
a. Yes; fill to proper level (1) with coolant. Go to step 3.
b. No; replace the Engine Coolant Level (ECL) sensor. Refer to section "Engine Coolant Level Sensor".
3. Check the following for leaks. Verify repairs.
a. Check for coolant leak at cylinder head gasket.
b. Check for coolant leak at air compressor head gasket.
c. Check for external coolant leak at hose connections.
d. Check for coolant in oil.
All information subject to change without notice.
9 05-14
Copyright © 2014 DETROIT DIESEL CORPORATION
15
7 SPN 111/FMI 19 - EPA10 - GHG14
e. Check for loose or faulty radiator cap.
f. Check cab heating system for leaks.
16
All information subject to change without notice.
Copyright © 2014 DETROIT DIESEL CORPORATION 9 05-14
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MFR Communication Date: 2014-09-05
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