P0228代码定义

Throttle/Pedal Position Sensor/Switch C Circuit High Input

P0228代码的意思是什么

P0228是一种通用OBD-II代码，表明节气门/踏板位置传感器/开关C电路具有很高的输入问题，导致传感器输入发动机控制模块（ECM）高于与冗余相比的预期电压输入节气门位置传感器A或高于指定范围。

是什么原因导致P0228代码？

• ECM检测传感器电路电压是否高于传感器的指定范围

• Short 5 volt reference to the signal wire could cause low voltage to the ECM. This can be from external wiring problems, or from an internally shorted sensor

P0228代码的症状是什么？

• The Check Engine Light and Electronic Throttle Control (ETC) Light will be illuminated

• The ECM goes into failure limp home mode; drive complaints may vary depending on manufacturer programming

• 在停止期间，油门完全关闭，以防止RPM过度

• 在加速期间，油门设置为固定位置，以限制油门开口

• Uneven idle or jerking during braking, due to the closed throttle position

• Limited acceleration due to very poor throttle response, or no response at all, during acceleration

• Vehicle speed limited to 32 mph or less

• 残疾巡航控制

机械师如何诊断P0228代码？

• 扫描代码和记录冻结框架数据以验证问题

• Clears the engine and ETC codes to verify whether the concern comes back

• 对接线和与节气门身体传感器的连接进行直观检查，以进行短线或燃烧的电线，这可能会导致短暂的电源

• 检查扫描数据以查看传感器信号电压是否短路到电源，并遵循精确测试步骤以找到短路

• Disconnects and checks the sensor resistance to see if sensor short is internal

Common mistakes when diagnosing the P0228 code

遵循以下简单准则以防止误诊：

• Do a visual check of the wiring to the sensor to make sure they are not shorted in any way

• 寻找传感器烧伤或切线的任何问题，或连接中的腐蚀

P0228代码有多严重？

• Any problems with the throttle sensor cause the limp mode to be activated

• 发动机将进入li行的家庭模式，系统将受到限制，具体取决于制造商

• The vehicle speed will be limited to less than 35 mph

• The engine will lack acceleration or have limited acceleration

• The engine idle will be low and erratic when coming to a stop

哪些维修可以修复P0228代码？

• 修理或更换短线接线到传感器
• 如果内部短路替换有缺陷的节气门控制组件
• 更换或重新编程ECM如果通过精确测试来指导

Additional comments for consideration regarding the P0228 code

当信号到达ECM高于指定的信号时，触发代码P0228，可能是由于传感器和ECM之间的线束短线引起的。大多数制造商都不使用此代码，应遵循认可的精确测试。

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Check Engine Light

P0228

故障代码