Kia Optima Hybrid: ESC(Electronic Stability Control) System / Steering Angle Sensor Description and Operation

Description
The Steering Angle Sensor (SAS) is installed in MDPS (Motor Driven Power Steering) and it sends messages to HECU through CAN communication line.
The SAS is used to determine turning direction and speed of the steering wheel.
The HECU uses the signals from the SAS when performing ESC-related calculations.
Components (Steering Angle Sensor, Torque Sensor, Failsafe relay, etc.) of the EPS system are located inside the steering column & EPS unit assembly and the steering column. EPS unit assembly must not be disassemble to be inspected. They must be replaced. (Refer to “ST (Steering system) Gr.”)
ESC OFF Switch Repair procedures

Inspection 1. Turn ignition switch OFF and disconnect the negative (-) battery cable. 2. Remove the crash pad side switch assembly. 3. Check the continuity between the switch terminals as the ESC OFF switch ...

Parking Brake System

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Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Telemetics Unit (TMU) Repair procedures


Removal     • Take care not to scratch the crash pad and related parts. 1. Disconnect the negative (-) battery terminal. 2. Remove the AVN head unit. (Refer to AVN System - "AVN Head Unit") 3. Disconnect the TMU unit and GPS connector (A). 4. Remove the TMU unit (B) after loosening the nuts. ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: 26 Brake Control Solenoid Valve(26/B_VFS) Repair procedures


Inspection 1. Turn ignition switch OFF. 2. Remove the air duct (A). Tightening torque: 7.8 ~ 9.8 N.m (0.8 ~ 1.0 kgf.m, 5.8 ~ 7.2 lb-ft) 3. Remove the air cleaner assembly. (1) Disconnect the breather hose (A). (2) Disconnect the air intake hose (B) and then remove the air cleaner assembly (C). Tightening ...

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