ECM Will Not Accept Factory Passwords
- 不正确的密码请求信息
- 不正确的密码
密码请求信息必须从正在编程的电子控制模块（ECM）中获取。 不能利用旧 ECM 提供的信息为替代 ECM 编程设定出厂密码。
确认密码请求信息与电子维修工具上显示的信息相同。
发动机序列号 - 发动机序列号必须来自电子维修工具屏幕，而非发动机信息标牌。
原因代码 - 采用出厂密码屏幕上的原因代码。 原因代码是为特定的用途而指定，因此不可互换。
循环通断钥匙开关。 尝试重新输入密码。
确认输入了正确的密码。 检查每个密码内的每个字符。
如果重新检查密码未能排除故障，则修改用户参数。 将参数从当前值改为其他值后将用户参数重新改回原始值。 事件顺序将改变总修改次数。 新的总修改次数将要求获取新出厂密码。 获取并输入新的出厂密码。
Caterpillar Information System:
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12M Series 3 Motor Grader Fuses - Replace
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for Dozing, Gen 3.0 Remote Control Operator Console with RFID Machine Shutdown Function Does Not Respond to Operator Console
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C7.1 Engines Codes that Inhibit Operation of Aftertreatment System
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C4.4 and C7.1 Engines Test ECM Mode
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