- Excavator:
- 5230B (S/N: 4HZ1-UP)
- Off-Highway Truck/Tractor:
- 784C (S/N: 2PZ1-UP)
- 785B (S/N: 6HK1-UP)
- 785C (S/N: 1HW1-UP; 5AZ1-UP; APX1-UP)
- 789B (S/N: 7EK1-UP)
- 789C (S/N: 2BW1-UP)
- 793B (S/N: 1HL1-UP)
- 793C (S/N: 4AR1-UP; ATY1-UP; CBR1-UP)
- 793D (S/N: FDB1-UP)
- 797 (S/N: 5YW1-UP)
- 797B (S/N: JSM1-UP)
- 785B (S/N: 6HK1-UP)
- Wheel Dozer:
- 854G (S/N: A4W1-UP)
- Wheel Loader:
- 992G (S/N: AZX1-UP)
- 994F (S/N: 4421-UP)
Introduction
The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.
Problem
The VIMS ECM (ABL platform) exhibits failures of hardware with the battery-backed memory. The backup battery will run down and lose the battery-backed memory. This usually results in replacement of the ECM. When the battery used by the 160-4891 Electronic Control Module (VIMS) requires replacement, the following indications are evident:
- a large number in Service Meter Hour (SMH)
- a large number in the odometer reading
Solution
A new procedure for the replacement of the battery exists for all 160-4891 Electronic Control Modules (VIMS). For details on replacing the failed battery backup, refer to the following listed references:
- Troubleshooting, Testing and Adjusting, RENR2631, "Battery - Replace"
- Systems Operation, Troubleshooting, Testing and Adjusting, RENR6318, "Battery - Replace"
- Systems Operation, Troubleshooting, Testing and Adjusting, RENR3376, "Battery - Replace"
- Systems Operation, Testing and Adjusting, SENR6059, "Battery - Replace"
The documents for reference that are listed above have been updated with a detailed procedure and a list for required tools.