Cat® Command For Hauling Caterpillar

MID 039 - Machine Control Module

CID 1603 - Machine Control Module

FMI 09 - Abnormal Update Rate

This diagnostic code appears when the Autonomous Control Module (Auto ECM) #1 does not receive a specific message from the machine control module (MCM) over ethernet communications.

Test Step 1. CHECK ETHERNET SWITCH #2

1. Verify that Ethernet Switch #2 is powered on. The Ethernet switch has green indicator lights at the ports that are illuminated when powered and are flashing when communicating.

Expected Result:

Ethernet Switch #2 is on and operating properly.

Results:

• OK - Ethernet Switch #2 is operating properly. Proceed to Test Step

• NOT OK - Ethernet Switch #2 is not powered on or operating properly.

  Repair: Remove the power cable at the 4-pin deutsch connector connection on Ethernet Switch #2 to cycle power.

  STOP

Test Step 2. CHECK THE MACHINE CONTROL MODULE (MCM).

1. Verify that the Auto ECM is powered on. Check the connectors for snug, clean fit.

Expected Result:

The Auto ECM is powered (shows in Cat ET) and connections are snug and free of debris.

Results:

• OK - The control module is powered on and connectors are in good working condition.

  Repair: Restart the system and allow proper time for startup and communication. Clear code if needed and check to see if the diagnostic code remains.

  STOP

• NOT OK - Control module is not powered or a connector found loose or damaged.

  Repair: Repair or replace components as needed.

  STOP

Test Step 3. CHECK ETHERNET SWITCH #2 USING A LAPTOP

1. Connect a laptop to Ethernet Switch #2.

2. Using the laptop, ping Auto ECM #1 and the MCM.

   Reference: Refer to Special Instruction, REHS7346, "CAT Command for Hauling - 793F CMD Onboard Autonomy and Configuration Guide" for more information on the ping procedure.

3. If both modules are pinged successfully, then check the configuration of Ethernet Switch #2.

   Reference: Refer to Special Instruction, REHS7346, "CAT Command for Hauling - 793F CMD Onboard Autonomy and Configuration Guide", "Autonomy Switches Configuration" for the Ethernet Switch #2 configuration settings.

Results:

• OK - The modules were successfully pinged and Ethernet Switch #2 is configured properly.

  Repair: It is possible that Ethernet Switch #2 has failed. This failure is not likely. Repeat this procedure from the beginning to ensure that Ethernet Switch #2 has failed.

  STOP

• NOT OK - Either one of the modules was not responsive or Ethernet Switch #2 configuration was not correct.

  Repair: Check cables and wires between the nonresponsive unit and verify that configuration has been corrected.

  STOP