Diagnosis procedure
1.Connector inspection
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair the terminal and connector.
2.Check harness continuity (short circuit)
Check the continuity between the data link connector terminals.
Is the inspection result normal? Yes >> go to 3.
No >> check the harness and repair the root cause.
3.Check harness continuity (short circuit)
Check the continuity between the data link connector and the ground.
Is the inspection result normal? Yes >> go to 4.
No >> check the harness and repair the root cause.
4.Check ecm and bcm termination circuit
Is the measurement value within the specification? YES >> GO TO 5.
NO >> Replace the ECM and/or the BCM.
5.Check symptom
Connect all the connectors. Check if the symptoms described in the “symptom (results from interview with customer)” are reproduced.
Inspection result
Reproduced>>GO TO 6.
Non-reproduced>>Start the diagnosis again. Follow the trouble diagnosis procedure when past error is detected.
6.Check unit reproduction
Perform the reproduction test as per the following procedure for each unit.
Note:
Ecm and bcm have a termination circuit. Check other units first.
Note:
Although unit-related error symptoms occur, do not confuse them with other symptoms.
Inspection result
Reproduced>>connect the connector. Check other units as per the above procedure.
Non-reproduced>>replace the unit whose connector was disconnected.
Removal and installation
EPS control unit
Exploded View
Steering column assembly
EPS control unit
Bracket plate
Front
Removal and Installation
REMOVAL
CAUTION:
Disconnect battery negative terminal before starting
operations.
Do not shock EPS control unit, e.g. drop or hit.
Do not ...
Dtc/circuit diagnosis
Eco mode switch
Component function check
1. Check eco mode switch operation
Turn ignition switch on.
Check ECO mode indicator lamp turns ON/OFF on combination meter when
turn ECO mode switch ON/
OFF.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Proceed to DM ...
Steering wheel
Inspection
CONDITION OF INSTALLATION
Check installation condition of power steering gear
assembly, front suspension, front drive shaft and steering
column.
Check if movement exists when steering wheel is moved up and
down, to the left and right and to the axial
direction.
S ...