0137-17

01 37-17
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01 37-17
SUBJECT
DATE
SPN 3361/FMI 5 (ACM) (GHG17)
SPN 3361/FMI 5 (ACM) (GHG14)
January 2017
Additions, Revisions, or Updates
Publication Number / Title
Platform
Section Title
DDC-SVC-MAN-0191
GHG17
Heavy Duty
SPN 3361/FMI 5 GHG17
DDC-SVC-MAN-0084
GHG14
Heavy Duty
SPN 3361/FMI 5 GHG14
Change
The diagnostic procedure has been updated. There is a new wiring
graphic for the GHG17 since there is no intermediate vehicle
harness on GHG17 models.
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.
01 37-17
Copyright © 2017 DETROIT DIESEL CORPORATION
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2 SPN 3361/FMI 5 - GHG17
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SPN 3361/FMI 5 - GHG17
Diesel Exhaust Fluid System Circuit Failed Open
Table 1.
SPN 3361/FMI 5
Description
This Fault Code Sets When the Aftertreatment Control Module
(ACM) Detects an Open in the Diesel Exhaust Fluid DEF Doser
Valve Electrical Circuit
Monitored Parameter
DEF Dosing Unit Voltage
Typical Enabling Conditions
DEF Dosing Enabled Then Disabled
Monitor Sequence
None
Execution Frequency
Continuous When Enabling Conditions Met
Typical Duration
50 Seconds (max)
Dash Lamps
MIL, CEL
Engine Reaction
Derate 25%
Verification
Key OFF Five Minutes After Repair
Check as follows:
1. Turn the ignition OFF.
2. Disconnect and inspect the DEF dosing unit electrical connector harness side. Is there corrosion present?
a. Yes; replace the DEF dosing unit and the aftertreatment harness. Refer to section "Removal of the Diesel
Exhaust Fluid Dosing Unit". Verify repairs.
b. No; Go to step 3.
3. Are any of the pins or the connector damaged?
a. Yes; Go to step 4.
b. No; Go to step 5.
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All information subject to change without notice.
Copyright © 2017 DETROIT DIESEL CORPORATION 01 37-17
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4. Inspect the DEF dosing unit electrical connector component side. Are any of the pins or the connector damaged?
a. Yes; replace the DEF dosing unit and the aftertreatment harness.
Refer to section "Removal of the Diesel Exhaust Fluid Dosing Unit"
Refer to section "Removal of the 1-BOX™ Aftertreatment Harness"
Verify repairs.
b. No; replace the aftertreatment harness. Refer to section "Removal of the 1-BOX™ Aftertreatment Harness".
Verify repairs.
5. Use the appropriate flex probe and check pins 1 and 2 in the DEF dosing unit electrical connector harness side. Is
either of the pins spread?
a. Yes; replace the aftertreatment harness. Refer to section "Removal of the 1-BOX™ Aftertreatment Harness".
Verify repairs.
b. No; Go to step 6.
6. Jump pin 1 to pin 2 on the DEF dosing unit electrical connector harness side.
7. Connect DiagnosticLink ®.
8. Turn the ignition ON (key ON, engine OFF).
9. Check the fault codes. Is fault code SPN 3361/FMI 5 now inactive and fault code SPN 3361/FMI 3 now active?
a. Yes; replace the DEF dosing unit. Refer to section "Removal of the Diesel Exhaust Fluid Dosing Unit". Verify
repairs.
b. No; replace the aftertreatment harness.
All information subject to change without notice.
01 37-17
Copyright © 2017 DETROIT DIESEL CORPORATION
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3 SPN 3361/FMI 5 - GHG14
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SPN 3361/FMI 5 - GHG14
Diesel Exhaust Fluid System Circuit Failed Open
Table 2.
SPN 3361/FMI 5
Description
This Fault Code Sets When the Aftertreatment Control Module
(ACM) Detects an Open on the Diesel Exhaust Fluid (DEF) Doser
Valve Circuit
Monitored Parameter
DEF Dosing Unit Voltage
Typical Enabling Conditions
DEF Dosing Enabled Then Disabled
Monitor Sequence
None
Execution Frequency
Continuous When Enabling Conditions Met
Typical Duration
50 Seconds (Max)
Dash Lamps
MIL, CEL
Engine Reaction
Derate 25%
Verification
Key OFF Five Minutes After Repair
Check as follows:
1. Turn the ignition OFF.
2. Disconnect and inspect the DEF dosing unit electrical connector harness side. Is there corrosion present?
a. Yes; replace the harness and the DEF doser.
b. No; Go to step 3.
3. Are any of the pins or the connector damaged?
a. Yes; Go to step 4.
b. No; Go to step 5.
4. Inspect the DEF dosing unit electrical connector component side. Are any of the pins or the connector damaged?
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All information subject to change without notice.
Copyright © 2017 DETROIT DIESEL CORPORATION 01 37-17
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5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
a. Yes; replace the DEF Dosing Unit and the harness on the aftertreatment system.
Refer to section "Removal of the GHG14 Dosing System Doser"
Refer to section "Removal of the 1-BOX Aftertreatment Harness"
Verify repairs.
b. No; replace the harness on the aftertreatment system. Refer to section "Removal of the 1-BOX Aftertreatment
Harness". Verify repairs.
Use the appropriate flex probes and check pins 1 and 2 in the DEF dosing unit electrical connector harness side. Is
either of the pins spread?
a. Yes; replace the harness on the aftertreatment system. Refer to section "Removal of the 1-BOX Aftertreatment
Harness". Verify repairs.
b. No; Go to step 6.
Jump pin 1 to pin 2 on the DEF dosing unit electrical connector harness side.
Connect DiagnosticLink ®.
Turn the ignition ON (key ON, engine OFF).
Check the fault codes. Is fault code SPN 3361/FMI 5 now inactive and fault code SPN 3361/FMI 3 now active?
a. Yes; replace the DEF dosing unit. Refer to section "Removal of the GHG14 Dosing System Doser". Verify
repairs.
b. No; Go to step 10.
Turn the ignition OFF.
Disconnect and inspect the Deutsch 47-way electrical connector harness side. Is there corrosion present?
a. Yes; replace both aftertreatment harnesses. Verify repair.
b. No; Go to step 12.
Are any of the pins or the connector damaged?
a. Yes; Go to step 13.
b. No; Go to step 14.
Inspect the DEF Dosing Unit electrical connector component side. Are any of the pins or the connector damaged?
a. Yes; repair the aftertreatment harness on the vehicle side and replace the harness on the aftertreatment system.
Refer to section "Removal of the 1-BOX Aftertreatment Harness". Verify repairs.
b. No; replace the harness on the aftertreatment system. Refer to section "Removal of the 1-BOX Aftertreatment
Harness". Verify repairs.
Use the appropriate flex probe and check pins 36 and 37 in the Deutsche 47-way electrical connector, vehicle harness
side. Is either of the pins spread?
a. Yes; repair the aftertreatment harness vehicle side. Verify repairs.
b. No; Go to step 15.
Jump pin 36 to pin 37 on the 47-way Deutsche electrical connector, vehicle harness side.
Turn the ignition ON (key ON, engine OFF).
Check the fault codes. Is fault code SPN 3361/FMI 5 now inactive and fault code SPN 3361/FMI 3 now active?
a. Yes; replace the harness on the aftertreatment system. Refer to section "Removal of the 1-BOX Aftertreatment
Harness". Verify repairs.
b. No; Go to step 18.
Disconnect the ACM 120-pin electrical connector. Measure the resistance between pin 36 of the Deutsch 47-way
electrical connector, vehicle harness side and pin 28 of the ACM 120-pin connector, harness side. Is the resistance less
than five ohms?
a. Yes; repair the open circuit between pin 37 of the Deutsche 47-way electrical connector, vehicle harness side
and pin 33 of the ACM 120-pin connector. Verify repairs.
b. No; repair the open circuit between pin 36 of the Deutsche 47-way electrical connector, vehicle harness side
and pin 28 of the ACM 120-pin connector. Verify repairs.
All information subject to change without notice.
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Copyright © 2017 DETROIT DIESEL CORPORATION
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