Customer Passwords
可能需要使用用户密码来保护用户参数免被更改。 电子维修工具可用来更改特定参数。 对于可编程监控系统，有些参数和应用不能改动。 密码通过电子维修工具编程设定到电子控制模块 (ECM) 中。 可输入一个或两个密码。 如果没有对密码进行编程，则任何人都可以更改客户参数。
为获得客户密码，请与机器用户联系。 如果机主忘记了客户密码，可以利用出厂密码创建临时客户密码。 可以利用临时客户密码修改原始客户密码或者受客户密码保护的所有参数。 断开电子维修工具时，提示将请求恢复客户原始密码。 如果未恢复原始密码，则密码将变为临时密码。
Caterpillar Information System:
C7.1 Engines Service Tool Error Identifiers
C18 Generator Set Additional Messages
C2.2 Engines for Caterpillar Built Machines Fuel Injection Timing - Check
3516C Marine Engines Cylinder Liner - Remove and Install
2015/06/05 New Fuel Injectors Are Used On Certain Tier 4 C9.3 Machine Engines {1254, 1290}
2015/05/01 New Fuel Lines Groups Are Used on Certain C18 Marine Engines with SCAC {1274}
3516C Marine Engines Pistons and Connecting Rods - Remove and Install
C9.3 Marine Auxiliary and Generator Set Engine Acceleration Is Poor or Throttle Response Is Poor
G3612 and G3616 Engines Air Inlet Choke - Assemble
C9.3 Marine Auxiliary and Generator Set Engine Configuration Parameters
C9.3 Marine Auxiliary and Generator Set Engine Electrical Connectors
C7.1 Engines Service Tool Features
C4.4 and C7.1 Engines Factory Passwords
C4.4 and C7.1 Engines Electronic Service Tool Does Not Communicate
G3600 A4 Engines Coolant Pressure Is High
C18 Generator Set Sound Information
C4.4 Generator Sets Maintenance Interval Schedule - Prime Power
C4.4 Generator Sets Maintenance Interval Schedule - Standby
C4.4 and C7.1 Engines ECM Will Not Accept Factory Passwords
C4.4 Generator Sets Product Installation
C4.4 Generator Sets Coolant Temperature Regulator - Replace
C7.1 Engines Codes that Inhibit Operation of Aftertreatment System
C4.4 and C7.1 Engines Test ECM Mode
C9.3 Marine Auxiliary and Generator Set Engine Coolant Contains Fuel