0412-17

04 12-17
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04 12-17
SUBJECT
DATE
SPN 3556/FMI 0, 1, 18 - Regeneration Temperature Update
Procedures
April 2017
Additions, Revisions, or Updates
Publication Number / Title
Platform
Section Title
Change
SPN 3556/FMI 0 GHG14 - ACM
DDC-SVC-MAN-0084
GHG14 DD
Platform
SPN 3556/FMI 1 GHG14 - ACM
The diagnostic procedures have been updated.
SPN 3556/FMI 18 GHG14 - ACM
All information subject to change without notice.
04 12-17
Copyright © 2017 DETROIT DIESEL CORPORATION
3
2 SPN 3556/FMI 0 - GHG14
2
SPN 3556/FMI 0 - GHG14
Regeneration Temperature - Out of Range High
Table 1.
SPN 3556/FMI 0
Description
This Code Sets When the ACM Detects that the DOC Outlet
Temperature Sensor is Greater than the Modeled Threshold.
Monitored Parameter
Diesel Oxidation Catalyst (DOC) Temperature Outlet Temperature
Sensor.
Typical Enabling Conditions
Aftertreatment 1 Hydrocarbon Doser Data Valid But Above Normal
Operational Range - Most Severe Level
Monitor Sequence
None
Execution Frequency
Continuous When Enabling Conditions Met
Typical Duration
Two Seconds
Dash Lamps
MIL, CEL
Engine Reaction
Derate 25%
Check as follows:
1. Connect DiagnosticLink ®. Go to step 2.
2. Turn the ignition ON (Key ON, Engine OFF). Go to step 3.
3. Check for multiple fault codes. Are fault codes SPN 3246 FMI,3, 4 or 8 and SPN 3250 FMI 3, 4, or 8 also present?
a. Yes; diagnose and repair those fault codes first. Verify repair.
b. No; Go to step 4.
4. Are there any Hydrocarbon (HC) doser low pressure fault codes present?
a. Yes; diagnose HC doser low pressure fault codes first. Verify repair.
b. No; Go to step 5.
5. Visually inspect the exhaust system for leaks. Look for signs of soot trails indicating a system leak. Are there exhaust
leaks present?
a. Yes; repair the exhaust leaks as necessary. Verify repair.
b. No; Go to step 6.
6. Remove and inspect the Hydrocarbon (HC) Fuel Doser Injection Valve. Refer to section "Removal of the
Hydrocarbon Doser Fuel Injector Valve". Is the HC doser valve plugged?
a. Yes; replace the Hydrocarbon doser injection valve and clean the port. Refer to section "Installation of the
Hydrocarbon Doser Fuel Injector Valve". Verify repair.
b. No; reinstall the Hydrocarbon Doser Injection Valve. Refer to section "Installation of the Hydrocarbon Doser
Fuel Injector Valve". Go to step 7.
WARNING: ENGINE EXHAUST
To avoid injury from inhaling engine exhaust, always operate the engine in a well-ventilated area.
Engine exhaust is toxic.
WARNING: PERSONAL INJURY
To avoid injury from hot surfaces, wear protective gloves, or allow engine to cool before removing
any component.
7. Perform a low temp Aftertreatment Device (ATD) regeneration; Refer to section "GHG14 Perform Performance
Check - Low Temperature ATD". Go to step 8.
4
All information subject to change without notice.
Copyright © 2017 DETROIT DIESEL CORPORATION 04 12-17
04 12-17
8. After the low temp ATD regeneration has run for 20 minutes, monitor the DOC outlet temperature sensor reading. Is
the DOC outlet temperature sensor reading within 25°C (45°F) of the DOC inlet temperature sensor?
a. Yes; replace the HC doser block. Refer to section "Removal of the Hydrocarbon Doser Block ". Verify repair.
b. No; replace the DOC outlet temperature sensor. Refer to section "Removal of the GHG14 Diesel Oxidation
Catalyst Outlet Temperature Sensor". Verify repair.
All information subject to change without notice.
04 12-17
Copyright © 2017 DETROIT DIESEL CORPORATION
5
3 SPN 3556/FMI 1 - GHG14
3
SPN 3556/FMI 1 - GHG14
Regeneration Temperature - Out Of Range Low
Table 2.
SPN 3556/FMI 1
Description
This Code Sets When the Exhaust Temperature Does Not Increase
Above the Modeled Threshold When Regeneration is Enabled.
Monitored Parameter
Diesel Oxidation Catalyst (DOC) Outlet Temperature Sensor
Typical Enabling Conditions
Regeneration Enabled, 1100 to 2050 rpm, 50% to 100% engine load.
Monitor Sequence
None
Execution Frequency
Continuous When Enabling Conditions Met
Typical Duration
20 seconds
Dash Lamps
MIL, CEL
Engine Reaction
None
Verification
Parked Regeneration
Check as follows:
1. Connect DiagnosticLink ®. Go to step 2.
2. Turn the key ON (key ON, engine OFF). Go to step 3.
3. Check for multiple codes. Are there DOC outlet temperature sensor drift fault codes, DOC outlet temperature sensor
stuck fault codes, or DOC outlet temperature sensor circuit fault codes present?
a. Yes; diagnose the other fault codes first. Verify repair.
b. No; Go to step 4.
4. Are there any Hydrocarbon (HC) doser low pressure fault codes present?
a. Yes; diagnose HC doser low pressure fault codes first. Verify repair.
b. No; Go to step 5.
5. Visually inspect the exhaust system for leaks. Look for signs of soot trails indicating a system leak. Are there exhaust
leaks present?
a. Yes; repair exhaust leaks as necessary. Verify repair.
b. No; Go to step 6.
6. Remove and inspect the Hydrocarbon (HC) Fuel Doser Injection Valve. Refer to section "Removal of the
Hydrocarbon Doser Fuel Injector Valve". Is the HC doser valve plugged?
a. Yes; replace the Hydrocarbon doser injection valve and clean the port. Refer to section "Installation of the
Hydrocarbon Doser Fuel Injector Valve". Verify repair.
b. No; reinstall the Hydrocarbon Doser Injection Valve. Refer to section "Installation of the Hydrocarbon Doser
Fuel Injector Valve". Go to step 7.
WARNING: ENGINE EXHAUST
To avoid injury from inhaling engine exhaust, always operate the engine in a well-ventilated area.
Engine exhaust is toxic.
WARNING: PERSONAL INJURY
To avoid injury from hot surfaces, wear protective gloves, or allow engine to cool before removing
any component.
7. Perform a low temp Aftertreatment Device (ATD) regeneration; Refer to section "GHG14 Perform Performance
Check - Low Temperature ATD". Go to step 8.
6
All information subject to change without notice.
Copyright © 2017 DETROIT DIESEL CORPORATION 04 12-17
04 12-17
8. After the low temp ATD regeneration has run for 20 minutes, monitor the DOC outlet temperature sensor reading. Is
the DOC outlet temperature sensor reading within 25°C (45°F) of the DOC inlet temperature sensor?
a. Yes; replace the HC doser block. Refer to section "Removal of the Hydrocarbon Doser Block ". Verify repair.
b. No; replace the DOC outlet temperature sensor. Refer to section "Removal of the GHG14 Diesel Oxidation
Catalyst Outlet Temperature Sensor". Verify repair.
All information subject to change without notice.
04 12-17
Copyright © 2017 DETROIT DIESEL CORPORATION
7
4 SPN 3556/FMI 18 - GHG14
4
SPN 3556/FMI 18 - GHG14
Diesel Oxidation Catalyst Outlet Temperature Low (Low Temp Regeneration)
Table 3.
SPN 3556 /FMI 18
Description
This Code Sets When the Exhaust Temperature Does Not Increase
Above the Modeled Threshold When the Low Temp Regeneration is
Enabled.
Monitored Parameter
Diesel Oxidation Catalyst (DOC) Outlet Temperature Sensor
Typical Enabling Conditions
Low Temperature Regeneration Enabled, 1100 to 2050 rpm, 50% to
100% Engine Load.
Monitor Sequence
None
Execution Frequency
Continuous When Enabling Conditions Met
Typical Duration
20 seconds
Dash Lamps
MIL, CEL
Engine Reaction
Derate 10%
Verification
Low Temp Regeneration
Check as follows:
1. Connect DiagnosticLink ®. Go to step 2.
2. Turn the key ON (Key ON, Engine OFF). Go to step 3.
3. Check for multiple codes. Are there DOC outlet temperature sensor drift fault codes, DOC outlet temperature sensor
stuck fault codes, or DOC outlet temperature sensor circuit fault codes present?
a. Yes; diagnose the other fault codes first. Verify repair.
b. No; Go to step 4.
4. Are there any Hydrocarbon (HC) doser low pressure fault codes present?
a. Yes; diagnose HC doser low pressure fault codes first. Verify repair.
b. No; Go to step 5.
5. Visually inspect the exhaust system for leaks. Look for signs of soot trails indicating a system leak. Are there exhaust
leaks present?
a. Yes; repair exhaust leaks as necessary. Verify repair.
b. No; Go to step 6.
6. Remove and inspect the Hydrocarbon (HC) Fuel Doser Injection Valve. Refer to section "Removal of the
Hydrocarbon Doser Fuel Injector Valve". Is the HC doser valve plugged?
a. Yes; replace the Hydrocarbon doser injection valve and clean the port. Refer to section "Installation of the
Hydrocarbon Doser Fuel Injector Valve". Verify repair.
b. No; reinstall the Hydrocarbon doser injection valve. Refer to section "Installation of the Hydrocarbon Doser
Fuel Injector Valve". Go to step 7.
WARNING: ENGINE EXHAUST
To avoid injury from inhaling engine exhaust, always operate the engine in a well-ventilated area.
Engine exhaust is toxic.
WARNING: PERSONAL INJURY
To avoid injury from hot surfaces, wear protective gloves, or allow engine to cool before removing
any component.
8
All information subject to change without notice.
Copyright © 2017 DETROIT DIESEL CORPORATION 04 12-17
04 12-17
7. Perform a low temp Aftertreatment Device (ATD) regeneration; Refer to section "GHG14 Perform Performance
Check - Low Temperature ATD". Go to step 8.
8. After the low temp ATD regen has run for 20 minutes, monitor the DOC outlet temperature sensor reading. Is the
DOC outlet temperature sensor reading within 25°C (45°F) of the DOC inlet temperature sensor?
a. Yes; replace the HC doser block. Refer to section "Removal of the Hydrocarbon Doser Block ". Verify repair.
b. No; replace the DOC outlet temperature sensor. Refer to section "Removal of the GHG14 Diesel Oxidation
Catalyst Outlet Temperature Sensor". Verify repair.
All information subject to change without notice.
04 12-17
Copyright © 2017 DETROIT DIESEL CORPORATION
9