NHTSA ID Number: 10199612
Manufacturer Communication Number: 0225-16
TSB/Document Date: 2021-08-02
Summary
Aftertreatment control module CAN 4 signature missing.
02 25-16
1
02 25-16
SUBJECT
DATE
SPN 1669 (ACM) (GHG17)
February 2016
Additions, Revisions, or Updates
Publication Number / Title
DDC-SVC-MAN-0191
Platform
Section Title
Change
GHG17 DD
Platform
SPN 1669/FMI 9 GHG17
Numerous steps have been rewritten.
All information subject to change without notice.
02 25-16
Copyright © 2016 DETROIT DIESEL CORPORATION
3
2 SPN 1669/FMI 9 - GHG17
2
SPN 1669/FMI 9 - GHG17
Aftertreatment Control Module CAN 4 Signal Missing
Table 1.
SPN 1669/FMI 9
Description
ACM PT-CAN 4 High Short to Ground or CAN 4 Low Short to Power
Monitored Parameter
CAN Communication
Typical Enabling Conditions
Always Enabled
Monitor Sequence
None
Execution Frequency
Always Enabled
Typical Duration
Two Seconds
Dash Lamps
MIL, CEL
Engine Reaction
None
Verification
Ignition Cycle
4
All information subject to change without notice.
Copyright © 2016 DETROIT DIESEL CORPORATION 02 25-16
02 25-16
All information subject to change without notice.
02 25-16
Copyright © 2016 DETROIT DIESEL CORPORATION
5
2 SPN 1669/FMI 9 - GHG17
Check as follows:
1. Are there any battery voltage faults (SPN 168/FMI any)?
a. Yes; troubleshoot battery voltage faults first.
b. No; Go to step 2.
2. Has the Aftertreatment Control Module (ACM), Motor Control Module (MCM), or Common Powertrain Controller
(CPC) been recently programmed?
a. Yes; clear the fault codes. If faults do not become active, release the vehicle. If faults become active, Go to step
3.
b. No; Go to step 3.
3. Is the aftertreatment system a 1-BOX™ configuration?
a. Yes; Go to step 4.
b. No; for a Two-Box option, Go to step 6.
4. Turn the ignition OFF and disconnect the ACM 120-pin connector.
5. Measure the resistance between pins 40 and 41 on the ACM connector, component side. Is the resistance between 55
and 65 ohms?
a. Yes; replace the aftertreatment harness.
b. No; replace the ACM.
6. Turn ignition OFF and wait five minutes before proceeding.
7. Disconnect the inlet NOx sensor four-way electrical harness connector.
8. Check the resistance between pins 1 and 2 of the inlet NOx sensor electrical connector, aftertreatment harness side. Is
the resistance greater than 10k ohms?
6
All information subject to change without notice.
Copyright © 2016 DETROIT DIESEL CORPORATION 02 25-16
02 25-16
9.
10.
11.
12.
13.
14.
15.
16.
17.
a. Yes; Go to step 9.
b. No; repair or replace the harness as necessary.
Check the resistance between pins 3 and 4 of the inlet NOx sensor, harness side. Is the resistance greater than 10k
ohms?
a. Yes; Go to step 10.
b. No; repair or replace the harness as necessary.
Disconnect the outlet NOx sensor four-way electrical harness connector.
Check the resistance between pins 1 and 2 of the outlet NOx sensor electrical connector, aftertreatment harness side. Is
the resistance greater than 10k ohms?
a. Yes; Go to step 12.
b. No; repair or replace the harness as necessary.
Check the resistance between pins 3 and 4 of the outlet NOx sensor electrical connector, aftertreatment harness side. Is
the resistance greater than 10k ohms?
a. Yes; Go to step 13.
b. No; repair or replace the harness as necessary.
Disconnect the soot sensor four-way electrical harness connector.
Check the resistance between pins 2 and 3 of the soot sensor electrical connector, aftertreatment harness side. Is the
resistance greater than 10k ohms?
a. Yes; Go to step 15.
b. No; repair or replace the harness as necessary.
Check the resistance between pins 1 and 4 of the soot sensor electrical connector, aftertreatment harness side. Is the
resistance greater than 10k ohms?
a. Yes; Go to step 16.
b. No; repair or replace the harness as necessary.
Disconnect the ACM 120-pin connector.
Measure the resistance between pins 40 and 41 on the ACM connector, component side. Is the resistance between 55
and 65 ohms?
a. Yes; replace the aftertreatment harness.
b. No; replace the ACM.
All information subject to change without notice.
02 25-16
Copyright © 2016 DETROIT DIESEL CORPORATION
7
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TSB/Document ID: 0225-16
Replacement Service Bulletin Number:
MFR Communication Date: 2016-02-25
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
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