RM38N0EC _95 ADAS / AD _111850 ADVANCED DRIVER ASSISTANCE SYSTEM _0502175 DYNAMIC RADAR CRUISE CONTROL SYSTEM(for Gasoline Model) J

ADVANCED DRIVER ASSISTANCE SYSTEM  DYNAMIC RADAR CRUISE CONTROL SYSTEM(for Gasoline Model)  Steering Pad Switch Circuit  


DESCRIPTION

·

The steering pad switch assembly outputs the dynamic cruise control on/off signal and various control signals to the ECM.

·

The ECM controls the dynamic cruise control system according to the signals received from the steering pad switch assembly.


WIRING DIAGRAM

A446119E20
0.74,2.615 2.635,3.01 1.896,0.396 10 false Steering Pad Switch Assembly (Cruise Control Switch) 1.823,1.469 2.74,1.667 0.917,0.198 10 false CANCEL 0.5,1.479 1.417,1.677 0.917,0.198 10 false -SET 1.24,1.469 2.156,1.667 0.917,0.198 10 false +RES 2.521,1.479 3.438,1.677 0.917,0.198 10 false MAIN 2.75,0.75 3.667,0.948 0.917,0.198 10 false CCS 2.75,1.948 3.667,2.146 0.917,0.198 10 false ECC 3.208,0.875 4.125,1.073 0.917,0.198 10 false z10 3.219,2.073 4.135,2.271 0.917,0.198 10 false z10 3.26,0.615 4.177,0.813 0.917,0.198 10 false 2 3.219,1.823 4.135,2.021 0.917,0.198 10 false 12 3.74,0.771 4.656,0.969 0.917,0.198 10 false CCS 3.74,1.99 4.656,2.188 0.917,0.198 10 false ECC 4.344,0.875 5.26,1.073 0.917,0.198 10 false E20 4.333,2.073 5.25,2.271 0.917,0.198 10 false E20 4.375,0.656 5.292,0.854 0.917,0.198 10 false 13 4.427,1.854 5.344,2.052 0.917,0.198 10 false 2 3.198,2.583 5.104,2.969 1.906,0.385 10 false Spiral Cable Sub-assembly 6.01,3.448 6.927,3.646 0.917,0.198 10 false A109 5.813,0.75 6.729,0.948 0.917,0.198 10 false 91 5.823,1.958 6.74,2.156 0.917,0.198 10 false 92 5.813,2.719 6.729,2.917 0.917,0.198 10 false 22 6.115,0.885 7.031,1.083 0.917,0.198 10 false CCS 6.115,2.063 7.031,2.26 0.917,0.198 10 false ECCS 6.115,2.844 7.031,3.042 0.917,0.198 10 false E1 6.406,3.448 6.99,3.667 0.583,0.219 10 false ECM

CAUTION / NOTICE / HINT

NOTICE:
·

Before replacing the ECM, refer to Service Bulletin.

·

When the ECM is replaced, update the ECU security key.

Click hereGeneral>SETUP>WHEN REPLACING OR REMOVING/INSTALLING PARTS>UPDATE ECU SECURITY KEY

·

The vehicle is equipped with a Supplemental Restraint System (SRS) which includes components such as airbags. Before servicing (including removal or installation of parts), be sure to read the precaution for Supplemental Restraint System.

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM>PRECAUTION



PROCEDURE

1.READ VALUE USING GTS
a.

Read the Data List according to the display on the GTS.

Powertrain > Radar Cruise1 > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Cancel Switch CANCEL switch status ON or OFF ON: CANCEL switch on
OFF: CANCEL switch off 		-
-SET Switch -SET switch status ON or OFF ON: -SET switch on
OFF: -SET switch off 		-
+RES Switch +RES switch status ON or OFF ON: +RES switch on
OFF: +RES switch off 		-
Cruise Main Switch Operation Condition Cruise control main switch status ON or OFF ON: Cruise control main switch pushed
OFF: Cruise control main switch not pushed 		-
Powertrain > Radar Cruise1 > Data List
Tester Display
Cancel Switch
-SET Switch
+RES Switch
Cruise Main Switch Operation Condition
50003 374 18,19,20,41
OK:

The value of each Data List item changes according to the operation of the steering pad switch assembly.



Result:
Proceed to
OK
NG



OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereADAS / AD>ADVANCED DRIVER ASSISTANCE SYSTEM>DYNAMIC RADAR CRUISE CONTROL SYSTEM (for Gasoline Model)>PROBLEM SYMPTOMS TABLE


NG

2.INSPECT STEERING PAD SWITCH ASSEMBLY
3.INSPECT SPIRAL CABLE SUB-ASSEMBLY

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>SPIRAL CABLE>INSPECTION

Result:
Proceed to
OK
NG



OK

4.CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM AND BODY GROUND)

NG

REPLACE SPIRAL CABLE SUB-ASSEMBLY

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>SPIRAL CABLE>REMOVAL


4.CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM AND BODY GROUND)
a.

Disconnect the A109 ECM connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(A109,E20)Location & Routing

Click Connector(A109)Engine Compartment>Engine Room Main Wire / Transmission Wire>ECM

Click Connector(E20)Instrument Panel>Instrument Panel Wire / Radio Wiring Sub-Assy / Telephone Computer Wire>Spiral Cable Sub-Assembly

A109-91 (CCS) - E20-13 (CCS) Always Below 1 Ω
A109-92 (ECCS) - E20-2 (ECC) Always Below 1 Ω
A109-91 (CCS) or E20-13 (CCS) - Body ground Always 10 kΩ or higher
A109-92 (ECCS) or E20-2 (ECC) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

5.CHECK HARNESS AND CONNECTOR (ECM - BODY GROUND)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.CHECK HARNESS AND CONNECTOR (ECM - BODY GROUND)
a.

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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(A109)Location & Routing

Click Connector(A109)Engine Compartment>Engine Room Main Wire / Transmission Wire>ECM

A109-22 (E1) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPLACE ECM

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (ENGINE CONTROL)>ECM>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR