Hyundai Santa Fe (TM): Motor Driven Power Steering / Description and operation
MDPS (Motor Dirven Power Steering) system uses an electric motor to assist the
steering force and it is an engine operation independent steering system.
MDPS control module controls the motor operation according to information received
from the each sensor and CAN (Controller Area Network), resulting in a more
precise and timely control of steering assist than conventional engine-driven
hydraulic systems,
MDPS system inspection is possible for each component, but replacement is possible
only for partial units, and other parts should not be disassembled.
Schematic Diagrams
Harness Connector
Type
Pin No
Description
MDPS Power
1
Battery -
2
Battery +
MDPS Unit
1
-
2
-
3
IG 1
4
C-CAN [High]
5
C-CAN [Low]
6
-
Other information:
Troubleshooting
Troubleshooting
Symptom
Possible cause
Remedy
Speedometer does not operate
Cluster fuse (10A) blown
Check for short and replace fuse
Speedometer faulty
Check speedometer
CAN line faulty
Oil Specification
1.
The R-134a or R-1234yf system requires synthetic (PAG) compressor oil
whereas the R-12 system requires mineral compressor oil. The two oils
must never be mixed.
2.