C1170 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C1170 – Steering Angle Sensor Zero Point Variation


C1170 Possible Symptoms


Anti-Lock Brake System (ABS) Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)


C1170 Possible Causes


Re-Initialize Steering Angle Sensor


C1170 Description


The Electronic Stability Program (ESP) is an active safety system which improves vehicle stability in all driving situations. It operates by actuating the brakes individually on one or more wheels on the front or rear axle. ESP stabilizes the vehicle when cornering, when braking or when coasting without power and holds it reliably in track. ESP complements the familiar functions of the anti-lock brake system (ABS), acceleration slip regulation (ASR) and engine braking regulation (EBR). The stability regulation function is superordinate to the ABS and ASR control systems. As well as actively intervening with the brakes, ESP also has an influence on engine/transmission management. The Electronic Stability Program (ESP) includes the following system interplay: ABS prevents the wheels from locking up during braking and thus maintains the steerability and directional control of the vehicle during deceleration. ASR prevents the drive wheels from spinning while driving. It also improves directional control with better traction across the entire speed range. EBR reduces brake slip at the drive wheels during deceleration and ensures directional control. ESP prevents the vehicle from breaking away when it is oversteered or understeered. In all situations, it ensures that the vehicle does not deviate from the course specified by the driver (within the bounds of physical limits). Brake forces are produced selectively at the individual wheels to correct this.