STUD-TAPERLOCK 6V5699 - Caterpillar

Illustration 1 g03672523
Data link connections of models:
834K, 836K and 988
Illustration 2 g03672446
Data link connections of models:
966M, 966M XE, 972M, 972M XE, 980M and 982M 950M
The following is a list of codes associated with the machine data link.
Table 1
Communication Gateway #1 ECM (VIMSTM Main) ECM
(MID 161)
DTC (1) DTC Description System Response
296-9 Transmission Control - Abnormal Update Rate There is a lack of communication between VIMS and the Transmission ECM.
590-9 Engine Control Module - Abnormal Update Rate There is a lack of communication between VIMS and the Engine ECM.
596-9 Implement Control - Abnormal Update Rate There is a lack of communication between VIMS and the Implement ECM.
890-9 Telemetry Data Link - Abnormal Update Rate There is a lack of communication between VIMS and the telemetry components.
1250-9 Remote Communication Module - Abnormal Update Rate There is a lack of communication between VIMS and the remote communication components.
2448-9 Graphical Display Module: Abnormal Update Rate There is a lack of communication between VIMS and the graphical display module.
(1) DTCs are shown as CID-FMIEach data link circuit:
Is an input and output of select electronic control modules (ECMs)
Is designed to carry communications between the ECMs
Consists of internal control circuits and the connecting harness wiringPossible -9 DTC causes are:
Poor ECM connections on the data link
Incorrect ECM hardware or software part numbers
Failed data link harness
Failed ECM on the data link
Failed component on the data link
Table 2
Troubleshooting Steps Values Results
1. Check for Diagnostic Codes
A. Connect Cat® Electronic Technician (Cat ET) to the machine.
B. Check for active DTCs.
There are no active data link associated codes
OK - There are no active data link associated DTCs.
STOP
Not OK - There are active data link associated DTCs.
Go to Step 2.
2. Check Connectors
A. Inspect the circuit harness connectors.
Connectors are:
* Clean
* Secure
* In good condition
OK - Connectors are OK.
Go to Step 3.
Not OK - Connectors are not OK.
Repair:
A. Correct any connection problem.
B. Verify that the problem is corrected.
STOP
3. Check the Hardware Part Numbers and the Software Versions
A. On Cat ET, click "ECM Summary".
B. Check "Software Group" for info(1).
*Hardware is the correct part number
*Software is the latest version
OK - The hardware and software are correct.
Go to Step 4.
NOT OK - The hardware or software are not correct.
Repair:
A. Install correct part number ECMs, if necessary(2).
B. Update the software(3).
C. Clear the DTC.
STOP
4. Check For Short to Ground
A. Turn off the disconnect switch.
B. Disconnect all DTC associated ECMs and components from the data link.
C. At the harness connector for the Communication Gateway # 1 ECM, measure the resistance between frame ground and the following harness contacts:
* +Data Link
*