Komnet Datalink Cannot Transmit - Data Erratic, Intermittent, or Incorrect Page 1 of 2
FAULT CODE 1633
Komnet Datalink Cannot Transmit - Data Erratic,
Intermittent, or Incorrect
Overview
CODE REASON EFFECT
Fault Code: Komnet Datalink Cannot Transmit - Data Erratic, None on
1633 Intermittent, or Incorrect. Communications within the performance.
PID: None OEM datalink network is intermittent.
SPN: 625
FMI: 2
LAMP: Amber
SRT:
OEM Datalink Network Using J1939
Circuit Description
The Cummins electronic control module (ECM) communicates to the OEM data link
network using the J1939 data link protocol.
Component Location
Refer to OEM troubleshooting for the location of the OEM installed primary and secondary
ECM's.
Shop Talk
This fault code is logged when J1939 data link communications between the OEM installed
ECM's and the Cummins engine ECM is intermittent. This fault is not triggered by the
Cummins installed ECM and is only stored as an information fault code. Do not recalibrate
or change the Cummins ECM for this fault code.
Troubleshooting Steps
13:02:31 2007-07-20
Komnet Datalink Cannot Transmit - Data Erratic, Intermittent, or Incorrect Page 2 of 2
STEPS SPECIFICATIONS
STEP 1. Check the fault codes.
STEP 1A. Check for an active Fault Code 1633 is active?
fault code.
Guided Step 1 - Check the fault codes.
Guided Step 1A - Check for an active fault code.
Conditions
z Turn keyswitch ON.
z Connect INSITE™ electronic
service tool.
Action
Check for an active fault code.
z Use INSITE™ electronic service
tool to read the fault codes.
Fault Code 1633 is active? Fault Code 1633 is active?
YES NO
A error has been detected in the OEM data No Repair
link.
Refer to the OEM troubleshooting manual
for more information.
Repair complete. Repair complete.
Last Modified: 22-Nov-2004
Copyright© 2004
Cummins, Inc.
All rights reserved
13:02:31 2007-07-20
