How to deal with the ESP warning light on Hongqi HS5?
1 Answers
Causes for the ESP warning light illuminating on the Hongqi HS5 include low battery voltage, insufficient charge, poor contact or failure of wheel speed sensors or wiring harness, malfunction of the ESP control module (ECU) or actuator, and software bugs. Below are detailed explanations and solutions: Low battery voltage or insufficient charge: First, check the battery. Use specialized tools to measure the current voltage and charge status of the battery. If the charge is insufficient, try fully charging it first. If the battery itself is found to be faulty, replace it with a new one. Poor contact or failure of wheel speed sensors or wiring harness: Lift the vehicle and inspect the wheel speed sensors, including the wiring harness. Use a multimeter to test; if there is no response, it indicates a fault, and the wheel speed sensor should be replaced. Malfunction of the ESP control module (ECU) or actuator: Swap parts with a test vehicle from a 4S shop. If the fault follows the swapped part, it means the ECU or actuator is damaged and needs to be replaced. Software bug: Occasional bugs in the chassis BCM software can also trigger ESP fault codes. In this case, visit the dealership to upgrade the chassis BCM software module to resolve the issue. ESP, also known as Electronic Stability Program, analyzes vehicle driving state information from various sensors and then sends correction instructions to systems like ABS and EBD to help maintain dynamic balance. ESP ensures optimal stability under various conditions, with particularly noticeable effects in cases of oversteering or understeering.
