(Table 148, contd)
Troubleshooting Test Steps
Values Results
5. Check the Signal Wire for a Short Circuit
A. Turn the keyswitch to the OFF position.
B. Use a suitable multimeter to measure the resistance between
P1:70 and all other terminals on the P1 connector.
Greater than
100 Ohms
Result: At least one of the resistance measurements is
less than 100 Ohms.
Repair: Replace the wiring between the aftertreatment
identification module and the ECM.
Use the electronic service tool to verify that the repair
eliminates the fault.
Result: All measured resistances are greater than 100
Ohms.
Proceed to Test Step 6.
6. Manually Enter the ““Aftertreatment Identification Information””
A. Record the “IGCEM serial number” and the “configuration group”
from the IGCEM Identification Plate. The identification plate is on the
end cover of the IGCEM.
B. Contact the Dealer Solutions Network (DSN) for a list of approved
RF and CEM configurations for the engine.
C. Verify that the IGCEM is a certified match with the engine.
D. Establish communication between the electronic service tool and
the ECM . If necessary, refer to Troubleshooting, “Electronic Service
Tools”.
E. Navigate to the “Aftertreatment Configuration” page.
F. Program the “Factory Installed Aftertreatment #1 Identification
Number” with the serial number from the IGCEM Identification Plate.
G. Program the “DPF #1 Soot Loading Sensing System Configura-
tion Code” with the “configuration group” from the IGCEM Identifica-
tion Plate.
Note: The code is automatically cleared.
Manual
programming
Result: The IGCEM is not a certified match to the
engine.
Repair: Replace the IGCEM with a certified match to
the engine. Refer to Disassembly and Assembly for re-
moval and installation procedures. When the new
IGCEM is installed, the aftertreatment identification
module will begin communicating with the ECM and the
diagnostic code will be cleared.
Note: The engine ECM will only communicate with the
IGCEM if the total operating hours of the engine are less
than 100. If the hours are greater than 100, the IGCEM
information must be programmed into the ECM by using
the electronic service tool.
Result: The IGCEM is a certified match to the engine.
Contact the Dealer Solutions Network (DSN).
i07746285
CAN Data Link - Test
Use this procedure if a fault is suspected in the CAN
data links. Also, use this procedure if one of the
following diagnostic codes is active:
UENR4469-36 271
Circuit Tests
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