Kia Carens: ESP(Electronic Stability Program) System / Steering Angle Sensor Description and operation
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.”)
Removal
1.
Disconnect the negative (-) battery terminal.
2.
Using a screwdriver or remover, remove the crash pad side cover [LH]
(A ...
Other information:
Inspection
1.
Check signal waveform of CKPS and CMPS using a GDS.
Specification: Refer to “Waveform”
Removal
1.
Turn the ignition switch OFF and disconnect the battery ...
Troubleshooting
Symptom
Possible cause
Remedy
Hard steering
Improper front wheel alignment
Excessive turning resistance of lower arm ball joint
Low tire pressure
No power assist
Correct
Rep ...