DRIVE GP-PUMP 9P9523 - Caterpillar

Table 3
Troubleshooting Test Steps Values Results
1. Check for Codes
A. Connect Cat® Electronic Technician (ET) to the service tool connector.
B. Look for active codes that are associated with the system for the diagnostic code.
Codes
Result: An associated code is active.
Repair: Troubleshoot any associated codes before continuing with this test.
Result: An associated diagnostic trouble code is not active or logged.
Proceed to Test Step 2.
2. Use the "System Communication Status" to Determine the Communication Issue
A. In Cat ET, click the "Diagnostics" tab on the tool bar.
B. Select the "System Communication Status" option from the drop-down list.
Component Identified
Result: A -9 code is active. Refer to the above -9 detected problems for additional information.
Proceed to Test Step 5.
Result: A -14 code is active. Refer to the above -14 detected problems for additional information.
Proceed to Test Step 3.
3. Check for Incorrect Configuration Parameters
A. Connect Cat ET.
B. Use Cat ET to verify that the correct parameters are being used.
Parameters
Result: The parameters are correct.
Proceed to Test Step 4.
Result: The parameters are not correct.
Repair: Input the correct parameters. Refer to Troubleshooting, "Configuration Parameters" for additional information.
If the problem is not resolved, proceed to Test Step 4.
4. Ensure that the latest Flash File Software is Installed in the ECM
A. Connect Cat ET.
B. Use Cat ET to verify that the correct flash file is being used.
Flash File
Result: The latest flash file is installed.
Proceed to Test Step 9.
Result: The latest flash file is not installed.
Repair: Perform the following procedure:
1. Download the latest flash file from SIS web.
2. Install the software into the ECM.
Refer to Troubleshooting, "ECM Software - Install" for additional information.
Proceed to Test Step 9.
Illustration 2 g03846524
Device 1 present
(1) Column 1
Illustration 3 g03846007
Device 1 and Device 2 present
(1) Column 1
(2) Multiple Device 1 and Device 2 can be displayed
(3) Device 2 is the affected ECM/device that cannot be recognized by Device 1. Device 2 is the ECM/device with the problem.
Table 4
Troubleshooting Test Steps Values Results
5. Use the System Communication Status to Determine the Cause
A. Determine if both Device 1 and Device 2 are present in the "ECM's" column (1) within the "System Communication Status" screen. Refer to Illustration 3.
Component Identified
Result: Device 1 and Device 2 are both present.
Record the devices identified as Device 1 and Device 2 in column 1. Refer to Illustration 3.
Proceed to Test Step 6.
Result: Only Device 1 is present.
Record the device identified as Device 1 in column 1. Refer to Illustration 2.
Proceed to Test Step 8.
6. Check the Resistance of the Data link
A. Turn the breaker to the OFF position.
B. Measure the resistance of the data link between the following Device 2 wiring harness connector terminals:
- +Data link and -Data link
60+/-10 Ohms
Result: The resistance is less than 50 Ohms.
Repair: There are more than 2 terminating resistors installed in the wiring harness or a short circuit has been detected. Repair or replace damaged components.
Proceed to Test Step 9.
Result: The resistance is 120 10 Ohms.
Repair: There is a problem with a terminating resistor. Check the resistance on each terminating resistor. Replace the failed terminating resistor.
Proceed to Test Step 9.
Result: The