NHTSA ID Number: 10192003
Manufacturer Communication Number: 1004-13-1
TSB/Document Date: 2021-05-10
Summary
Voltage values were changed in the procedure as well as new continunity tests.
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TSB/Document ID: 1004-13-1
Replacement Service Bulletin Number:
MFR Communication Date: 2013-10-04
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: EQUIPMENT
MFR Component System:
MFR Component Subsystem:
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10 04-13
1
10 04-13
SUBJECT
DATE
SPN 723/FMI 8 & 11 – ALL YEARS
October 2013
Additions, Revisions, or Updates
Publication Number / Title
DDC-SVC-MAN-0084
Platform
DD Platform
Section Title
SPN 723/FMI 8 – ALL
YEARS
SPN 723/FMI 11 – ALL
YEARS
Change
Voltage values were changed in the procedure as well as new
continuity tests.
All information subject to change without notice.
10 04-13
Copyright © 2013 DETROIT DIESEL CORPORATION
3
2 SPN 723/FMI 8 - ALL YEARS
2
SPN 723/FMI 8 - ALL YEARS
This diagnostic is typically Camshaft Position (CMP) Sensor Time Out.
Table 1.
SPN 723/FMI 8
Description
Camshaft Position Sensor Time Out
Monitored Parameter
Camshaft Position Sensor
Typical Enabling Conditions
Engine Idle
Monitor Sequence
None
Execution Frequency
Continuous when enabling conditions met
Typical Duration
10 Seconds
Dash Lamps
MIL, CEL
Engine Reaction
Derate 25%
Verification
Engine Idle (1 minute)
Check as follows:
1. Use DDDL to insure that cranking speed is over 150 rpm. Is cranking speed over 150 rpm?
a. Yes; Go to step 2.
b. No; determine the cause of low crank speed.
2. Turn the ignition OFF.
3. Disconnect the Camshaft Position (CMP) sensor electrical harness connector.
4. Inspect the CMP sensor and harness connectors for signs of damage; bent, spread, broken, unseated (pushed out) or
corroded pins, signs of moisture indicating seal damage and signs of wire damage near the connector.
a. If signs of damage are present, repair as necessary.
b. If no signs of damage are present, Go to step 5.
5. Turn on the ignition ON (key ON, engine OFF).
6. Measure the voltage between pins 1 and 3 on the harness side of the CMP sensor.
4
All information subject to change without notice.
Copyright © 2013 DETROIT DIESEL CORPORATION 10 04-13
10 04-13
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
a. If the voltage is between 4.5 and 5.5 volts, Go to step 8.
b. If the voltage is not between 4.5 and 5.5 volts, Go to step 7.
Measure the voltage between pin 1 of the CMP sensor harness connector and battery ground.
a. If the voltage is between 4.5 and 5.5 volts, repair the wire between pin 3 of the CMP harness connector and pin
48 of the Motor Control Module (MCM) 120-pin connector.
b. If the voltage is not between 4.5 and 5.5 volts, repair the wire between pin 1 of the CMP harness connector and
pin 82 of the Motor Control Module (MCM) 120-pin connector.
Turn the ignition OFF.
Disconnect the MCM 120-pin connector.
Inspect the MCM 120-pin module and harness connectors for signs of damage; bent, spread, broken, unseated (pushed
out) or corroded pins, signs of moisture indicating seal damage and signs of wire damage near the connector.
a. If signs of damage are present, repair as necessary.
b. If no signs of damage are present, Go to step 11.
Measure the resistance between pin 2 of the CMP harness connector and pin 45 of the MCM 120-pin connector.
a. If resistance is less than 5 ohms, Go to step 12.
b. If resistance is greater than 5 ohms, repair the wire between pin 2 of the CMP harness connector and pin 45 of the
MCM 120-pin connector.
Measure the resistance between pin 2 of the CMP harness connector and battery ground.
a. If resistance is greater than 10K ohms, Go to step 13.
b. If resistance is less than 10K ohms, repair the shorted wire between pin 2 of the CMP harness connector and pin
45 of the MCM 120-pin connector.
Measure the resistance between pins 1 and 2 of the CMP harness connector.
a. If resistance is greater than 10K ohms, Go to step 14.
b. If resistance is less than 10K ohms, repair the shorted wire between pins 1 and 2 of the CMP harness connector
and pins 82 and 45 of the MCM 120-pin connector.
Measure the resistance between pins 2 and 3 of the CMP harness connector.
a. If resistance is greater than 10K ohms, Go to step 15.
b. If resistance is less than 10K ohms, repair the shorted wire between pins 2 and 3 of the CMP harness connector
and pins 45 and 48 of the MCM 120-pin connector.
Has the engine had any gear train, camshaft, or flywheel repairs made?
a. Yes; verify proper gear train timing and proper flywheel installation. Refer to section "Camshaft Timing
Verification".
b. No; Go to step 16.
Remove the CMP sensor and inspect for damage. Is there damage to the sensor?
a. Yes; inspect the tone wheel on the intake cam for damage. Check gear train for excessive lash or damage. If
damage is found, repair as necessary, and replace the CMP sensor. Refer to section "Removal of the Camshaft
Position Sensor".
b. No; replace the camshaft position sensor. Refer to section "Removal of the Camshaft Position Sensor".
All information subject to change without notice.
10 04-13
Copyright © 2013 DETROIT DIESEL CORPORATION
5
3 SPN 723/FMI 11 - ALL YEARS
3
SPN 723/FMI 11 - ALL YEARS
This diagnostic is typically Camshaft Position (CMP) Sensor Failure.
Table 2.
SPN 723/FMI 11
Description
Camshaft Position Sensor Failure
Monitored Parameter
Camshaft Position Sensor
Typical Enabling Conditions
Engine Idle
Monitor Sequence
None
Execution Frequency
Continuous when enabling conditions met
Typical Duration
2 Seconds
Dash Lamps
MIL
Engine Reaction
Verification
Engine Idle
Check as follows:
1. Use DDDL to insure that cranking speed is over 150 rpm. Is cranking speed over 150 rpm?
a. Yes; Go to step 2.
b. No; determine the cause of low crank speed.
2. Turn the ignition OFF.
3. Disconnect the CMP sensor harness connector.
4. Inspect the CMP sensor and harness connectors for signs of damage; bent, spread, broken, unseated (pushed out) or
corroded pins, signs of moisture indicating seal damage and signs of wire damage near the connector.
a. If signs of damage are present, repair as necessary.
b. If no signs of damage are present, Go to step 5.
5. Turn the ignition ON (key ON, engine OFF).
6. Measure the voltage between pins 1 and 3 on the harness side of the CMP sensor.
6
All information subject to change without notice.
Copyright © 2013 DETROIT DIESEL CORPORATION 10 04-13
10 04-13
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
a. If the voltage is between 4.5 and 5.5 volts, Go to step 8.
b. If the voltage is not between 4.5 and 5.5 volts, Go to step 7.
Measure the voltage between pin 1 of the CMP sensor harness connector and battery ground.
a. If the voltage is between 4.5 and 5.5 volts, repair the wire between pin 3 of the CMP harness connector and pin
48 of the Motor Control Module (MCM) 120-pin connector.
b. If the voltage is not between 4.5 and 5.5 volts, repair the wire between pin 1 of the CMP harness connector and
pin 82 of the Motor Control Module (MCM) 120-pin connector.
Turn the ignition OFF.
Disconnect the MCM 120-pin connector.
Inspect the MCM 120-pin module and harness connectors for signs of damage; bent, spread, broken, unseated (pushed
out) or corroded pins, signs of moisture indicating seal damage and signs of wire damage near the connector.
a. If signs of damage are present, repair as necessary.
b. If no signs of damage are present, Go to step 11.
Measure the resistance between pin 2 of the CMP harness connector and pin 45 of the MCM 120-pin connector.
a. If resistance is less than 5 ohms, Go to step 12.
b. If resistance is greater than 5 ohms, repair the wire between pin 2 of the CMP harness connector and pin 45 of the
MCM 120-pin connector.
Measure the resistance between pin 2 of the CMP harness connector and battery ground.
a. If resistance is greater than 10K ohms, Go to step 13.
b. If resistance is less than 10K ohms, repair the shorted wire between pin 2 of the CMP harness connector and pin
45 of the MCM 120-pin connector.
Measure the resistance between pins 1 and 2 of the CMP harness connector.
a. If resistance is greater than 10K ohms, Go to step 14.
b. If resistance is less than 10K ohms, repair the shorted wire between pins 1 and 2 of the CMP harness connector
and pins 82 and 45 of the MCM 120-pin connector.
Measure the resistance between pins 2 and 3 of the CMP harness connector.
a. If resistance is greater than 10K ohms, Go to step 15.
b. If resistance is less than 10K ohms, repair the shorted wire between pins 2 and 3 of the CMP harness connector
and pins 45 and 48 of the MCM 120-pin connector.
Has the engine had any gear train, camshaft, or flywheel repairs made?
a. Yes; verify proper gear train timing and proper flywheel installation. Refer to section "Camshaft Timing
Verification".
b. No; Go to step 16.
Remove the CMP sensor and inspect for damage. Is there damage to the sensor?
a. Yes; inspect the tone wheel on the intake camshaft for damage. Check gear train for excessive lash or damage. If
damage is found, repair as necessary, and replace the camshaft position sensor. Refer to section "Removal of the
Camshaft Position Sensor".
b. No; replace the camshaft position sensor. Refer to section "Removal of the Camshaft Position Sensor".
All information subject to change without notice.
10 04-13
Copyright © 2013 DETROIT DIESEL CORPORATION
7
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