P0A0A86 - TroubleshootingP0A0A86-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
P0A0A86	high-voltage interlock (HVIL) signal is invalid高压互锁信号无效	1. Random hardware failure1.随机硬件失效
		2. The high-voltage interlocking harness is damaged and the chassis is short.2.高压互锁线束破损，短机壳

Troubleshooting steps故障诊断步骤

①General inspection一般检查

1. The entire vehicle is powered off at high voltage.整车高压下电。 2. Check whether the high-voltage interlock (HVIL) wiring harness is damaged or broken.检查高压互锁线束是否损坏、断裂。 3. Check whether the high-voltage interlocking harness connector is damaged or disconnected.检查高压互锁线束接插件是否损坏、虚接。 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。

②Power on check上电检查

1. Repower the vehicle, use the diagnostic tool to read and clear the fault codes, and check whether the fault codes and symptoms are eliminated.车辆重新上电，使用诊断仪读取并清除故障码，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 3.去步骤3。

③Replacing the integrated electric drive assembly更换集成电力驱动总成

1. Replace the integrated electric drive assembly with a new one and check whether the fault code and symptoms are eliminated.更换新的集成电力驱动总成，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 integrated electric drive assembly, you need to use a diagnostic tool to recalibrate the integrated electric drive assembly.更换集成电力驱动总成后，需用诊断仪对集成电力驱动总成重新标定。