RM38N0EC _55 Steering _111819 POWER ASSIST SYSTEMS _0501137 POWER STEERING SYSTEM C

POWER ASSIST SYSTEMS  POWER STEERING SYSTEM  C123A17  Supply Voltage Circuit Circuit Voltage Above Threshold  


DESCRIPTION

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate DTC Output from Priority
C123A17 Supply Voltage Circuit Circuit Voltage Above Threshold IG voltage is higher than the standard value
·

Harness or connector

·

Rack and pinion power steering gear assembly


EPS warning light: Comes on EMPS A

WIRING DIAGRAM

C472031E02
1.271,0.396 2.823,0.771 1.552,0.375 10 false from IGR NO. 2 Relay*1 3.75,0.625 4.542,0.875 0.792,0.25 10 false EPS-IGR*1 5.438,0.333 6.052,0.552 0.615,0.219 10 false 4 5.677,0.427 6.292,0.646 0.615,0.219 10 false IG 5.656,1.833 6.271,2.052 0.615,0.219 10 false PGND 5.427,1.75 6.042,1.969 0.615,0.219 10 false 7 5.073,2.5 5.771,2.719 0.698,0.219 10 false C37 5.083,2.656 7.073,3.208 1.99,0.552 10 false Power Steering ECU (Rack and Pinion Power Steering Gear Assembly) 0.885,1.156 2.865,1.406 1.979,0.25 10 false from Stop and Start System*2 0.438,2.844 2.885,3.042 2.448,0.198 10 false *1: for HV Model 0.438,3.188 3.802,3.385 3.365,0.198 10 false *2: for Gasoline Model

CAUTION / NOTICE / HINT

NOTICE:
·

Inspect the fuses for circuits related to this system before performing the following procedure.



PROCEDURE

1.CHECK HARNESS AND CONNECTOR (IG POWER SOURCE)

Pre-procedure1

a.

Disconnect the C37 rack and pinion power steering gear assembly connector.


Procedure1

b.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Condition Specified Condition

Click Location & Routing(C37)Location & Routing

Click Connector(C37)Engine Compartment>Engine Wire>Power Steering ECU with Motor Assembly (Rack and Pinion Power Steering Gear Assembly)

C37-4 (IG) - Body ground Ignition switch ON 11 to 14 V


Result:
Proceed to
OK
NG



Post-procedure1

c.

None



OK

2.CLEAR DTC

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

2.CLEAR DTC

Pre-procedure1

a.

None


Procedure1

b.

Clear the DTCs.

Chassis > EMPS > Clear DTCs
50002 405
Result:
Proceed to
NEXT



Post-procedure1

c.

Turn the ignition switch off.



NEXT

3.CHECK FOR DTC