807-14

8 07-14
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8 07-14
SUBJECT
DATE
SPN 4360 (ACM) (EPA10) and SPN 4360 (ACM) (GHG14)
August 2014
Additions, Revisions, or Updates
Publication Number / Title
Platform
DDC-SVC-MAN-0084
DD Platform
Section Title
Change
SPN 4360/FMI 8 - EPA10
The fault code name has been corrected and the
diagnostic procedure has been updated.
SPN 4360/FMI 8 - GHG14
All information subject to change without notice.
8 07-14
Copyright © 2014 DETROIT DIESEL CORPORATION
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2 SPN 4360/FMI 8 - EPA10
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SPN 4360/FMI 8 - EPA10
SCR Inlet Temperature Signal Spike
Table 1.
SPN 4363 /FMI 8
Description
This fault code sets when the Aftertreatment Control Module (ACM)
detects a momentary abnormal Selective Catalyst Reduction (SCR)
inlet temperature reading.
Monitored Parameter
Selective Catalyst Reduction Inlet Temperature sensor
Typical Enabling Conditions
Non-Regen Mode
Monitor Sequence
None
Execution Frequency
Continuous when enabling conditions met
Typical Duration
2 seconds
Dash Lamps
MIL, CEL
Engine Reaction
None
Verification
SCR efficiency test
Check as follows:
1. Connect DiagnosticLink ®.
2. Turn the ignition ON (key ON, engine OFF).
3. Check for multiple fault codes. Are fault codes SPN 4360/FMI 3 or 4 present?
a. Yes; diagnose the other fault codes first.
b. No; Go to step 4.
4. Shake the SCR inlet temperature sensor harness while watching the SCR sensor voltage using DiagnosticLink. Does
the voltage fluctuate when the harness is shaken?
a. Yes; replace the harness. Verify repair.
b. No; Go to step 5.
5. Disconnect and inspect the SCR inlet temperature sensor electrical connector. Are there any spread pins, damaged pins,
corrosion or signs of fretting present?
a. Yes; repair the harness as necessary. Verify repair.
b. No; replace the SCR inlet temperature sensor. Verify repair.
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All information subject to change without notice.
Copyright © 2014 DETROIT DIESEL CORPORATION 8 07-14
8 07-14
3
SPN 4360/FMI 8 - GHG14
SCR Inlet Temperature Signal Spike
Table 2.
SPN 4363 /FMI 8
Description
This fault code sets when the Aftertreatment Control Module (ACM)
detects a momentary abnormal Selective Catalyst Reduction (SCR)
inlet temperature reading.
Monitored Parameter
Selective Catalyst Reduction Inlet Temperature sensor
Typical Enabling Conditions
Non-Regen Mode
Monitor Sequence
None
Execution Frequency
Continuous when enabling conditions met
Typical Duration
2 seconds
Dash Lamps
MIL, CEL
Engine Reaction
None
Verification
SCR efficiency test
Check as follows:
1. Connect DiagnosticLink®.
2. Turn the ignition ON (key ON, engine OFF).
3. Check for multiple fault codes. Are fault codes SPN 4360/FMI 3 or 4 present?
a. Yes; diagnose the other fault codes first.
b. No; Go to step 4.
4. Shake the SCR inlet temperature sensor harness while watching the SCR sensor voltage using DiagnosticLink. Does
the voltage fluctuate when the harness is shaken?
a. Yes; replace the harness. Verify repair.
b. No; Go to step 5.
5. Disconnect and inspect the SCR inlet temperature sensor electrical connector. Are there any spread pins, damaged pins,
corrosion or signs of fretting present?
a. Yes; repair the harness as necessary. Verify repair.
b. No; replace the SCR inlet temperature sensor, Refer to section "Removal of the GHG14 Selective Catalyst
Reduction Inlet Temperature Sensor". Verify repair.
All information subject to change without notice.
8 07-14
Copyright © 2014 DETROIT DIESEL CORPORATION
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