1016-13-002 Service Bulletin/Repair Instructions

10 16-13
1
10 16-13
SUBJECT
DATE
SPN 3216/FMI 13 - EPA10/GHG14
October 2013
Additions, Revisions, or Updates

Publication Number / Title
DDC-SVC-MAN-0084
Platform

EPA10 –

GHG14 DD

Platform
Section Title
Change
SPN 3216/FMI 13 EPA10
Currently, the two troubleshooting procedures for SPN 3216/13,

EPA10 and GHG14, reference removal of the Outlet NOx sensor.

The reference needs be to the Inlet sensor instead. Markup for

both troubleshooting procedures are included in attachment.
SPN 3216/FMI 13 –

GHG14
All information subject to change without notice.
10 16-13
Copyright © 2013 DETROIT DIESEL CORPORATION
3
2 SPN 3216/FMI 13 - EPA10
2
SPN 3216/FMI 13 - EPA10
This diagnostic is typically SCR Inlet NOx Sensor Signal Not Available.

Table 1.

SPN 3216/FMI 13

Description
Selective Catalyst Reduction (SCR) Inlet NOx Sensor Signal Not

Available
Monitored Parameter
SCR Inlet NOx Sensor Signal
Typical Enabling Conditions
Always Enabled
Monitor Sequence
None
Execution Frequency
Always Enabled
Typical Duration
2 Seconds
Dash Lamps
MIL
Engine Reaction

Verification
Engine Idle (1 minute)
NOTE: If fault occurred during high idle regeneration, clear fault and release vehicle.

Check as follows:

1. Is the SPN 3216/FMI 13 currently active?

a. Yes; Go to step 3.

b. No; Go to step 2.

2. Check the SPN 3216/FMI 13 DTC occurrence counter.
a. If the DTC occurrence counter is 5 or less, clear the fault and release the vehicle.

b. If the DTC occurrence counter is greater than 5, Go to step 3.

3. Disconnect the SCR inlet NOx sensor.

4. Inspect the SCR inlet NOx sensor harness for bent, spread, or corroded pins.

a. If the pins are bent, spread, or corroded, repair as necessary.

b. If the connector shows no signs of damage, Go to step 5.

5. Turn the ignition ON (key ON, engine OFF).

4
All information subject to change without notice.
Copyright © 2013 DETROIT DIESEL CORPORATION 10 16-13
10 16-13

6. Measure the voltage between pins 1 and 4 on the harness side of the SCR inlet NOx sensor connector.

a. If the voltage is less than 11.5 volts, Go to step 7.

b. If the voltage is greater than 11.5 volts, Go to step 8.

7. Measure the voltage between pin 1 on the harness side of the SCR inlet NOx sensor connector and engine ground.

a. If the voltage is less than 11.5 volts, repair the wire between pin 1 on the harness side of the SCR inlet NOx

sensor connector and pin 50 of the ACM2 120-pin connector.

b. If the voltage is greater than 11.5 volts, repair the wire between pin 4 on the harness side of the SCR inlet NOx

sensor connector and pin 51 of the ACM2 120-pin connector.

8. Turn the ignition OFF.

9. Measure the resistance between pins 2 and 3 on the harness side of the SCR inlet NOx sensor connector.

a. If the resistance is between 50 and 70 ohms, replace the SCR inlet NOx sensor. Refer to section "Removal of the

EPA10 Selective Catalyst Reduction Inlet NOx Sensor".

b. If the resistance is not between 50 and 70 ohms, Go to step 10.

10. Disconnect the Aftertreatment Control Module (ACM2) 120-pin connector.

11. Inspect the ACM2 120-pin harness connector for signs of damage, bent, spread, corroded or unseated (pushed out) pins

and signs of moisture in the connector or wire damage near the connector.

a. If signs of damage are present, repair as necessary.

b. If no signs of damage are present, Go to step 12.

12. Measure the resistance between pins 2 and 3 on the harness side of the SCR inlet NOx sensor connector.

a. If the resistance is less than 1K ohms, repair the short between pins 2 and 3 on the harness side of the SCR inlet

NOx sensor connector and pins 52 and 53 of the ACM2 120-pin connector. Refer to section "Verify Repairs".

b. If the resistance is greater than 1K ohms, Go to step 13.

13. Measure the resistance between pin 2 on the harness side of the SCR inlet NOx sensor connector and pin 53 of the

ACM2 120-pin connector.

a. If the resistance is greater than 5 ohms, repair the wire between pin 2 on the harness side of the SCR inlet NOx

sensor connector and pin 53 of the ACM2 120-pin connector.

b. If the resistance is less than 5 ohms, Go to step 14.

14. Measure the resistance between pin 3 on the harness side of the SCR inlet NOx sensor connector and pin 52 of the

ACM2 120-pin connector.

a. If the resistance is greater than 5 ohms, repair the wire between pin 3 on the harness side of the SCR inlet NOx

sensor connector and pin 52 of the ACM2 120-pin connector. Refer to section "Verify Repairs".

b. If the resistance is less than 5 ohms, Go to step 15.

15. Test the ACM2 internal resistor; measure the resistance between pins 52 and 53 on the ACM2 120-pin connector.
All information subject to change without notice.
10 16-13
Copyright © 2013 DETROIT DIESEL CORPORATION
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2 SPN 3216/FMI 13 - EPA10

a. If the resistance is between 50 and 70 ohms, replace the SCR Inlet NOx Sensor. Refer to section "Removal of the

EPA10 Selective Catalyst Reduction Inlet NOx Sensor"

b. If the resistance is NOT between 50 and 70 ohms, replace the ACM2.
6
All information subject to change without notice.
Copyright © 2013 DETROIT DIESEL CORPORATION 10 16-13
10 16-13
3
SPN 3216/FMI 13 - GHG14
This diagnostic is typically SCR Inlet NOx Sensor Signal Not Available.

Table 2.

SPN 3216/FMI 13

Description
Selective Catalyst Reduction (SCR) Inlet NOx Sensor Signal Not

Available
Monitored Parameter
SCR Inlet NOx Sensor Signal
Typical Enabling Conditions
Always Enabled
Monitor Sequence
None
Execution Frequency
Always Enabled
Typical Duration
2 Seconds
Dash Lamps
MIL
Engine Reaction
None
Verification
Engine Idle (1 minute)
NOTE: If fault occurred during high idle regeneration, clear fault and release vehicle.

Check as follows:

1. Is the SPN 3216/FMI 13 currently active?

a. Yes; Go to step 3.

b. No; Go to step 2.

2. Check the SPN 3216/FMI 13 DTC occurrence counter.
a. If the DTC occurrence counter is five or less, clear the fault and release the vehicle.

b. If the DTC occurrence counter is greater than five, Go to step 3.

3. Disconnect the SCR inlet NOx sensor.

4. Inspect the SCR inlet NOx sensor harness for bent, spread, or corroded pins.

a. If the pins are bent, spread, or corroded, repair as necessary.

b. If the connector shows no signs of damage, Go to step 5.

5. Turn the ignition ON (key ON, engine OFF).

All information subject to change without notice.
10 16-13
Copyright © 2013 DETROIT DIESEL CORPORATION
7
3 SPN 3216/FMI 13 - GHG14

6. Measure the voltage between pins 1 and 4 on the harness side of the SCR inlet NOx sensor connector.

a. If the voltage is less than 11.5 volts, Go to step 7.

b. If the voltage is greater than 11.5 volts, Go to step 8.

7. Measure the voltage between pin 1 on the harness side of the SCR inlet NOx sensor connector and engine ground.

a. If the voltage is less than 11.5 volts, repair the wire between pin 1 on the harness side of the SCR inlet NOx

sensor connector and pin 50 of the ACM2.1 120-pin connector.

b. If the voltage is greater than 11.5 volts, repair the wire between pin 4 on the harness side of the SCR inlet NOx

sensor connector and pin 51 of the ACM2.1 120-pin connector.

8. Turn the ignition OFF.

9. Measure the resistance between pins 2 and 3 on the harness side of the SCR inlet NOx sensor connector.

a. If the resistance is between 50 and 70 ohms, replace the SCR inlet NOx sensor. Refer to section "Removal of the

GHG14 Selective Catalytic Reduction Inlet NOx Sensor".

b. If the resistance is not between 50 and 70 ohms, Go to step 10.

10. Disconnect the Aftertreatment Control Module (ACM2.1) 120-pin connector.

11. Inspect the ACM2.1 120-pin harness connector for signs of damage, bent, spread, corroded or unseated (pushed out)

pins and signs of moisture in the connector or wire damage near the connector.

a. If signs of damage are present, repair as necessary.

b. If no signs of damage are present, Go to step 12.

12. Measure the resistance between pins 2 and 3 on the harness side of the SCR inlet NOx sensor connector.

a. If the resistance is less than 10K ohms, repair the short between pins 2 and 3 on the harness side of the SCR inlet

NOx sensor connector and pins 52 and 53 of the ACM2.1 120-pin connector. Refer to section "Verify Repairs".

b. If the resistance is greater than 10K ohms, Go to step 13.

13. Measure the resistance between pin 2 on the harness side of the SCR inlet NOx sensor connector and pin 53 of the

ACM2.1 120-pin connector.

a. If the resistance is greater than 5 ohms, repair the wire between pin 2 on the harness side of the SCR inlet NOx

sensor connector and pin 53 of the ACM2.1 120-pin connector.

b. If the resistance is less than 5 ohms, Go to step 14.

14. Measure the resistance between pin 3 on the harness side of the SCR inlet NOx sensor connector and pin 52 of the

ACM2.1 120-pin connector.

a. If the resistance is greater than 5 ohms, repair the wire between pin 3 on the harness side of the SCR inlet NOx

sensor connector and pin 52 of the ACM2.1 120-pin connector. Refer to section "Verify Repairs".

b. If the resistance is less than 5 ohms, Go to step 15.

15. Test the ACM2.1 internal resistor; measure the resistance between pins 52 and 53 on the ACM2.1.
8
All information subject to change without notice.
Copyright © 2013 DETROIT DIESEL CORPORATION 10 16-13
10 16-13

a. If the resistance is between 50 and 70 ohms, replace the SCR inlet NOx Sensor. Refer to section "Removal of the

GHG14 Selective Catalytic Reduction Inlet NOx Sensor"

b. If the resistance is NOT between 50 and 70 ohms, replace the ACM2.1.
All information subject to change without notice.
10 16-13
Copyright © 2013 DETROIT DIESEL CORPORATION
9

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