0041-04 8 Volt Supply voltage low (21)
产生此代码的情况:
发动机控制模块 (ECM) 检测到以下情况：
- 8 伏电源低于 7.5 VDC 超过 1 秒。
- ECM 已被通电至少 3 秒。
系统响应:
ECM 将记录诊断代码并触发快照。 该诊断代码为激活状态的同时，检查发动机指示灯亮起。 如果电源没有降到 6.5 VDC 以下，激活的诊断代码可能不会对发动机响应造成任何明显的影响。
发动机可能会被限制在低怠速。
注: 8 伏电源为油门踏板位置传感器供电。
测试步骤 1. 进行以下的诊断步骤: 油门踏板（油门）位置传感器电路 - 测试
结果:
- 正常 - 停止
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