PULLEY 6N4399 - 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
Table 1 lists data link configuration status diagnostic trouble codes (DTCs).
Table 1
Communication Gateway #1 ECM (VIMSTM Main) ECM
(MID 161)
DTC(1) DTC Description System Response
254-14 Electronic Control Module - Special Instruction Logged events that cannot be explained
296-14 Transmission Control - Special Instruction Logged events that cannot be explained
590-14 Engine Control Module - Special Instruction Logged events that cannot be explained
596-14 Implement Control - Special Instruction Logged events that cannot be explained
800-11 VIMSTM Main Module - Failure Mode Not Identifiable Logged events that cannot be explained
1250-14 Remote Communication Module - Special Instruction Logged events that cannot be explained
(1) DTCs are shown as CID-FMIPossible -11 DTC causes are:
Configuration is not loaded
Incompatible or incorrect configuration loaded
Configuration loaded did not take effect when the ECM was not properly powered cycledPossible -14 DTC causes are:
Incorrect personality module DTC
Invalid parameter configuration
Incorrect ECM
Table 2
Troubleshooting Steps Values Results
1. Check for DTCs
A. Connect Cat® Electronic Technician (Cat ET) to the machine.
B. Check for DTCs.
DTC is not active
OK - The DTC is not active.
STOP
Not OK - The DTC is active.
Go to Step 2.
2. Check Connectors
A. Inspect the circuit harness connectors(1).
Connectors are:
* Clean
* Secure
* In good condition
OK - Connectors are OK.
Go to Step 3.
Not OK - A connector is not OK.
Repair:
A. Correct any connector problem(1).
B. Verify that the problem is corrected.
STOP
3. Check The Ground Circuit
A. Turn off the key start switch and battery disconnect switch.
B. Disconnect the harness from the ECM.
C. At the connector of the harness, use a multimeter to measure the resistance between the ECM out contacts and ground.
< 5 Ω
OK - The ground circuit is correct.
Go to Step 4.
NOT OK - The ground circuit is not correct. There is a short to ground in the harness.
Repair:
Repair or replace the harness.
Go to Step 4.
4. Check If The DTC Remains
A. Reconnect all harness connectors.
B. Turn on the disconnect switch and the key start switch.
C. Operate the machine.
D. Check if DTC is active.
DTC is not active
OK - The DTC is no longer active.
Repair:
The DTC could have been caused by a poor connection. Resume machine operation.
STOP
NOT OK - The DTC is active.
Repair:
Go to Step 5.
STOP
5. Check Software Version
A. Connect Cat ET.
B. Select the ECM that is related to the DTC.
C. Check the software version(2).
Software version is correct
OK - Software version is correct.
Go to Step 6.
Not OK - Software version is not correct.
Repair:
A. Obtain the correct flash file.
B. Flash the ECM(3).
C. Reset all active DTCs and clear all logged DTCs.
Stop
(1) See Troubleshooting, "Electrical Connector - Inspect"
(2) Consult the Business Unit that produces the product for the correct part numbers
(3) See Testing and Adjusting, "ECM Software - Install"
Table 3
Troubleshooting Test Steps Values Results
6. Check For an Associated -9 DTC
A. Establish communication between Cat ET and the VIMS ECM.
B. Check for an associated -9 DTC.
Associated -9 DTC is not active
OK - Associated -9 DTC is not active.
Go to Step 7.
Not OK - Associated -9 DTC is active.
Repair:
A. Repair all associated -9 DTCs.
B. If a -14 DTC