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故障现象一辆2012款上海通用别克新君越轿车,累计行驶里程约为1万km,该车从刚购车开始仪表盘上的ESP灯就经常点亮,但将发动机熄火后再重新起动,该灯工作又能恢复正常。前两次维护时由于时间紧就没有对该故障进行维修,这次特地来我店维修。故障诊断首先连接GDS2进行检测,读到了到2个当前故障代码(图1),另外还有2个历史故障代码:C0287(5A)——纵向加速度传感器电路不合理;C0187(5A)——横向加速度传感器电路不合理。由于存在当前故障代码,于是决定从故障代码U0074
Symptom A 2012 Shanghai GM Buick LaCrosse sedan, the cumulative mileage of about 10000 km, the car from the beginning of the car dashboard ESP light always on, but the engine off and then restart, the light Work can return to normal. The first two maintenance time because there is no time to repair the fault, this time specifically to my shop maintenance. Fault Diagnosis Connect GDS2 first, read 2 current fault codes (Fig. 1), there are 2 other historical fault codes: C0287 (5A) - Longitudinal acceleration sensor circuit is unreasonable; C0187 (5A) - Lateral Accelerometer circuit is not reasonable. As a result of the current error code, it is then determined from error code U0074