Landfill Compactors, Soil Compactors, Wheel Dozers, and Wheel Loaders VIMSTM 3G Caterpillar

Subscriber Identity Module (SIM) Card - Test

Usage:

826K 232

The SIM Card is not detected by the Communication Gateway #1 ECM. Three consecutive samples from the master board indicate that the SIM Card is not detected.

Table 1 lists subscriber identity module (SIM) card diagnostic trouble codes (DTCs).

Show/hide table

Table 1
Communication Gateway #1 ECM (VIMS^TM Main) ECM (MID 161)
DTC ⁽¹⁾	DTC Description	System Response
3766-14	Subscriber Identity Module (SIM) Card - Special Instruction	Product Link^® cannot communicate

Show/hide table

⁽¹⁾	DTCs are shown as CID-FMI

Possible -14 DTC causes are:

SIM card failure
SIM card not installed
SIM card not activated

Reference: The machine Electrical Schematic

Show/hide table

Table 2
Troubleshooting Test Steps	Values	Results
1. Identify the Active DTC Associated With the SIM Card A. Use Cat^® Electronic Technician (Cat ET) to determine DTCs.	DTC is not present	OK - DTC is not present. Stop Not OK - DTC is present. Go to Step 2.
2. Check Connections A. Inspect the circuit harness connectors.	Connectors are: * Clean * Secure * In good condition	OK - Connections are good. Go to Step 3. Not OK - A connection problem exists. Repair: A. Clean and secure connectors. B. Verify that the problem is corrected. STOP
3. Check SIM Status After a Power Cycle A. Turn off the key switch. B. Close the disconnect. C. Wait a few moments. D. Reapply power. E. Turn on the disconnect. F. Turn on the key switch. G. Wait 3 minutes. H. Connect Cat ET. I. Recheck the SIM status.	SIM card is detected by the master board in a low-power mode⁽¹⁾	OK - Card detected and function correct. Stop Not OK - Card not detected or function not correct. Go to Step 4.
4. Verify That the SIM Card Is Present and Properly Installed A. Remove power from the machine. B. Remove SIM card cover. C. Remove and reinstall the SIM card.	SIM card is present and properly installed	OK - Card is OK. Go to Step 5. STOP Not OK - Card is not OK. Repair: If present, secure the SIM card in the slot. If not present, contact your Technical Communicator (TC) to report the issue and order a new SIM card. STOP
5. Verify SIM Card Operation A. Contact the Trimble store through your Product Link Administrator. B. Verify that the device subscription is in the Trimble Store.	The SIM card: * Is activated * Approved on the network * Roaming is enabled	OK - SIM card is OK. Go to Step 6. Not OK - SIM card is not OK. Repair: Contact your Product Link Administrator. STOP
6. Verify Good Machine Location A. Position the machine in an area of known good cellular communication. B. Attempt machine communication.	The machine can communicate	OK - Communication OK. STOP Not OK - Communication not OK. Go to Step 7.
7. Verify Antenna Operation A. Replace the antenna with a known good antenna. B. Attempt machine communication.	The machine can communicate	OK - Communication OK. STOP Not OK - Communication not OK. Repair: A. Replace the faulty antenna. B. Attempt communication. * If communication good - STOP * If communication not good - Contact your TC. STOP