P144362 - TroubleshootingP144362-故障诊断

Fault code description故障码说明

DTC故障码(DTC)	Fault code description故障码描述	Possible cause of failure可能故障原因
P144362	Brake pedal position sensor signal does not match brake switch signal制动踏板位置传感器信号与制动开关信号不匹配	1. The brake pedal position sensor signal is inconsistent with the brake pedal status reflected by the brake switch signal.1.制动踏板位置传感器信号与制动开关信号所反映的制动踏板状态不一致

Troubleshooting steps故障诊断步骤

①General inspection一般检查

1. Power state is "OFF", disconnect the negative terminal of the 12V battery.电源状态“OFF”，断开蓄电池负极。 2. Check the brake light switch wiring harness for damage, breakage, etc.检查制动灯开关线束是否存在损坏、断裂等现象。 3. Check the brake light switch harness connector for loose connection or damage.检查制动灯开关线束接插件是否存在虚接、损坏等现象。 Are the test results normal?检查结果是否正常？ Yes是 Go to step 2.去步骤2。 No否 Repair or replace faulty wiring harness or connector.维修或更换故障线束或接插件。

②Check brake light switch circuit检查制动灯开关线路

1. Check whether the circuit related to the brake light switch is normal.检查制动灯开关相关线路是否正常。 Are the test results normal?检查结果是否正常？ Yes是 Go to step 3.去步骤3。 No否 Check the brake light switch circuit.检修制动灯开关线路。

③Check brake light switch检查制动灯开关

1. Replace the brake light switch and check whether the fault code and symptoms are eliminated.更换制动灯开关，检查故障码及症状是否排除。 Are the test results normal?检查结果是否正常？ Yes是 Fault resolved.故障排除。 No否 Go to step 4.去步骤4。

④Check the integrated brake control system检查集成式制动控制系统

1. Use a diagnostic tool to read the fault code of the integrated brake control system and check whether there is a fault in the integrated brake control system.使用诊断仪读取集成式制动控制系统故障码，检查集成式制动控制系统是否存在故障。 Are the test results normal?检查结果是否正常？ Yes是 Go to step 5.去步骤5。 No否 Troubleshoot according to the fault code.根据故障码排除故障。

⑤Replace vehicle controller更换整车控制器

1. Replace the vehicle controller with a new one and check whether the fault code and symptoms are eliminated.更换新的整车控制器，检查故障码及症状是否排除。 Are the test results normal?检查结果是否正常？ Yes是 Fault resolved.故障排除。 No否 Look for causes from other symptoms.从其他症状查找原因。   Caution:注意： ♦  After replacing the vehicle controller, you need to use a diagnostic tool to recalibrate the vehicle controller.更换整车控制器后，需用诊断仪对整车控制器重新标定。