The P1622 diagnostic trouble code (DTC) indicates that there is a high voltage condition in the oxygen sensor reference circuit. The oxygen sensor reference voltage circuit is responsible for providing a stable voltage signal to the oxygen sensor, allowing it to accurately measure the oxygen content in the exhaust gases.

Discover the P1622 engine error code, its causes, symptoms, and how to fix issues related to the thermostat control circuit or engine coolant system

2023年5月17日 · 故障码P1622是什么意思？ 在汽车领域，P1622代码通常意味着车辆的电子控制单元（ECU）或引擎控制模块（ECM）检测到一个报警信号，表明系统中存在一个内部故障或通信问题。

了解 P1622 发动机错误代码、其原因、症状以及如何修复与恒温器控制电路或发动机冷却液系统相关的问题

2022年3月23日 · 1. What are the common symptoms of OBDII code P1622 RAM Oxygen Sensor Reference Voltage Circuit High? - Common symptoms include poor fuel efficiency, rough idling, and an illuminated Check Engine Light. 2. What are the possible causes of the P1622 fault code related to the oxygen sensor reference voltage circuit?

The P1622 diagnostic trouble code (DTC) for Dodge vehicles specifically relates to a fault in the oxygen sensor reference voltage circuit, indicating that the voltage level provided to the oxygen sensor is higher than the expected range.

P1622故障码，适用于奥迪,大众，意思是发动机冷却液温度信号 - 范围/性能 (Engine Coolant Temperature Signal - Range/Performance)。 提示：快速查找故障码，可以关注“ 车主指南 ”公众号，回复故障代码，如：“ P1622 ”，即可获得对应故障码解释和解决方案。

2022年3月23日 · If the PCM detects a fault in the O2 Sensor heater circuitry the internal PCM driver is disabled during the current ignition cycle. The Diagnostic Trouble Code (DTC) will be …

If you’re dealing with fault code P1622 and your engine light is on, it’s time to visually inspect the wiring harness and connectors. This code can be caused by a faulty downstream or upstream O2 sensor, an open or shorted sensor harness, or a poor electrical connection in the sensor circuit.

p1622故障码通常意味着电路或开关出现了故障。 这种故障可能出现在发动机控制模块 (ECM)中的一个或多个电路中，通常会使车辆处于非操作模式，无法启动或运行。