PISTON 6J7805 - Caterpillar

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 5
Troubleshooting Test Steps Values Results
6. Use the "System Communication Status" to Determine the Communication Issue
A. Connect Cat ET.
B. Use Cat ET to verify that Device 1 and Device 2 are present in the "Device's" column (1) within the "System Communication Status" screen.
C. Verify that Device 1 and Device 2 are present in the "System Communication Status" screen.
Component Identified
Result: Device 1 and device 2 are both present. Record the devices identified as device 1 and device 2 in column 1.
Proceed to Test Step 7.
Result: Only device 1 is present. Record the device identified as device 1 in column 1.
Proceed to Test Step 10.
7. Check the Resistance