RM38N0EC _58 Vehicle Interior _111833 LIGHTING (INT) _0499871 LIGHTING SYSTEM J

LIGHTING (INT) LIGHTING SYSTEM Push Start Switch Illumination Circuit

DESCRIPTION

The illuminated entry system controls the push start switch illumination.

WIRING DIAGRAM

1.542,2.198 3.375,2.396 1.833,0.198 10 false Push Start Switch 4.885,2.198 6.688,2.563 1.802,0.365 10 false Certification ECU (Smart Key ECU Assembly) 1.542,2.031 2.479,2.25 0.938,0.219 10 false E53 4.885,2.031 5.208,2.208 0.323,0.177 10 false E52 5.073,1.323 5.49,1.521 0.417,0.198 10 false AGND 5.073,0.688 5.49,0.885 0.417,0.198 10 false SWIL 4.823,1.323 5.094,1.5 0.271,0.177 10 false 30 4.833,0.677 5.104,0.854 0.271,0.177 10 false 20 5.885,0.646 6.156,0.823 0.271,0.177 10 false +B 3.74,0.698 4.01,0.875 0.271,0.177 10 false 5 3.74,1.323 4.01,1.5 0.271,0.177 10 false 3 3.313,0.698 3.688,0.875 0.375,0.177 10 false SWIL 3.344,1.323 3.76,1.521 0.417,0.198 10 false GND

CAUTION / NOTICE / HINT

NOTICE:: Before replacing the certification ECU (smart key ECU assembly), refer to Service Bulletin.

PROCEDURE

1.PERFORM ACTIVE TEST USING GTS

Perform the Active Test according to the display on the GTS.

Body Electrical > Entry&Start > Active Test

Tester Display	Measurement Item	Control Range	Diagnostic Note
Start SW Light Power Supply	Push start switch illumination	OFF or ON	-

Body Electrical > Entry&Start > Active Test

Tester Display
Start SW Light Power Supply

50004 440 1

OK:: Push start switch illumination comes on.

Result:

Proceed to
OK
NG

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereVehicle Interior>LIGHTING (INT)>LIGHTING SYSTEM>PROBLEM SYMPTOMS TABLE202111,999999,_58,_111833,_0499871,RM100000001Z0HJ,

2.INSPECT PUSH START SWITCH

for M20C-FKS, M20D-FKS: Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (STARTING)>ENGINE SWITCH>INSPECTION202111,999999,_51,_111788,_0503345,RM100000001ZE78,

for A25D-FXS, A25F-FXS: Click hereEngine / Hybrid System>A25D-FXS, A25F-FXS (STARTING)>POWER SWITCH>INSPECTION202111,999999,_51,_111796,_0503347,RM100000001ZE7C,

Result:

Proceed to
OK
NG

3.CHECK HARNESS AND CONNECTOR (PUSH START SWITCH - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))

REPLACE PUSH START SWITCH

for M20C-FKS, M20D-FKS: Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (STARTING)>ENGINE SWITCH>REMOVAL202111,999999,_51,_111788,_0503345,RM100000001ZE76,

for A25D-FXS, A25F-FXS: Click hereEngine / Hybrid System>A25D-FXS, A25F-FXS (STARTING)>POWER SWITCH>REMOVAL202111,999999,_51,_111796,_0503347,RM100000001ZE7A,

3.CHECK HARNESS AND CONNECTOR (PUSH START SWITCH - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))

Disconnect the E52 certification ECU (smart key ECU assembly) connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
Click Location & Routing(E53,E52)Location & Routingewd_type=routing;type=c,c;code=E53,E52 Click Connector(E53)Instrument Panel>Instrument Panel Wire / Radio Wiring Sub-Assy / Telephone Computer Wire>Push Start Switchewd_type=component;type=c;code=E53;pinno=5,3 Click Connector(E52)Instrument Panel>Instrument Panel Wire / Radio Wiring Sub-Assy / Telephone Computer Wire>Smart Key ECU Assemblyewd_type=component;type=c;code=E52;pinno=20,30
E53-5 (SWIL) - E52-20 (SWIL)	Always	Below 1 Ω
E53-3 (GND) - E52-30 (AGND)	Always	Below 1 Ω
E53-5 (SWIL) or E52-20 (SWIL) - Body ground	Always	10 kΩ or higher
E53-3 (GND) or E52-30 (AGND) - Body ground	Always	10 kΩ or higher

Result:

Proceed to
OK
NG

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

REPAIR OR REPLACE HARNESS OR CONNECTOR