NHTSA ID Number: 10199623
Manufacturer Communication Number: 0306-16
TSB/Document Date: 2021-08-02
Summary
Troubleshooting Diagnosticlink Update.
03 06-16
1
03 06-16
SUBJECT
DATE
TCM SPN 520970/FMI 7
March 2016
Additions, Revisions, or Updates
Publication Number / Title
Platform
Section Title
DDC-SVC-MAN-0140
DT12
SPN 520970/FMI 7
DDC-SVC-MAN-0084
DT12
SPN 520970/FMI 7
DDC-SVC-MAN-S084
DT12
SPN 520970/FMI 7
Change
Update to Step 6
DiagnosticLink users: Please update the troubleshooting guides in DiagnosticLink with this newest version. To update the
tool troubleshooting guide, open DiagnosticLink and from the Help - Troubleshooting Guides menu, select the appropriate
troubleshooting manual, then click Update.
All information subject to change without notice.
03 06-16
Copyright © 2016 DETROIT DIESEL CORPORATION
3
2 SPN 520970/FMI 7
2
SPN 520970/FMI 7
Clutch - Unable to Open Fully
Check as follows:
1. Connect DiagnosticLink ® 8.01 or higher; SPN 520999/FMI 7 (AMT Clutch Control - Mechanical Error) may also be
present when this fault occurs.
WARNING: PERSONAL INJURY
To avoid injury before starting and running the engine, ensure the vehicle is parked on a level
surface, parking brake is set, and the wheels are blocked.
WARNING: ENGINE EXHAUST
To avoid injury from inhaling engine exhaust, always operate the engine in a well-ventilated area.
Engine exhaust is toxic.
2. Start the engine and idle for two minutes.
3. Is the transmission air supply pressure greater than 689 kPa (100 psi)?
a. Yes; Go to step 6.
b. No; Go to step 4.
4. Shut the engine OFF.
5. Inspect transmission air supply lines and fittings for leaks; repair as necessary. Repeat all steps in this procedure.
6. Under the Actions menu, select transmission heading and then choose Clutch Apply Leak Test; execute routine. Does
the result indicate a successful completion, test pass? Note that test may have to be performed three times in order to
get a "pass" result.
a. Yes; Go to step 7.
b. No; Go to step 8.
7. Under Instrumentation tab, select Transmission Learned Values. Is Instrument Learned Value Clutch Minimum greater
than 33 mm or Clutch Limit Stop Maximum Value greater than 51mm?
4
All information subject to change without notice.
Copyright © 2016 DETROIT DIESEL CORPORATION 03 06-16
03 06-16
a. Yes; Go to step 8.
b. No; obtain a driving log file and contact Detroit™ Transmission Support at 855-253-0428 for further assistance.
8. Remove transmission. Refer to section "Removal of the Transmission".
9. Keep the pressure plate and clutch disk installed on the engine.
a. Lay a straightedge (1) on the raised portions on the pressure plate (2).
b. Use a ruler to measure the distance (A) from the straightedge to the contact apex of each release finger.
All information subject to change without notice.
03 06-16
Copyright © 2016 DETROIT DIESEL CORPORATION
5
2 SPN 520970/FMI 7
10. Is the measurement greater than 2.54 cm (1 in.) or pressure plate fingers warped?
a. Yes; replace pressure plate, pressure plate mounting bolts and clutch disc. Refer to section "Installation of the
Clutch".
b. No; replace the Concentric Pneumatic Clutch Actuator (CPCA). Refer to section "Removal of the Clutch
Actuator Assembly".
6
All information subject to change without notice.
Copyright © 2016 DETROIT DIESEL CORPORATION 03 06-16
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TSB/Document ID: 0306-16
Replacement Service Bulletin Number:
MFR Communication Date: 2016-03-06
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: POWER TRAIN:AUTOMATIC TRANSMISSION
MFR Component System:
MFR Component Subsystem:
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