RM38N0EC _51 Engine / Hybrid System _111803 STOP AND START _0509671 STOP AND START SYSTEM J

STOP AND START STOP AND START SYSTEM Engine Hood Courtesy Switch Circuit

DESCRIPTION

The engine stop and start ECU detects whether the engine hood is open or closed based on a signal received from the engine hood courtesy switch built into the hood lock assembly.

The engine stop and start ECU prohibits starting of the engine by stop and start control and changes the mode to "stalled" if the engine hood is opened with the shift lever in D or P while the engine is stopped by stop and start control.

WIRING DIAGRAM

3.552,0.927 3.708,1.125 0.156,0.198 10 false 1 2.031,0.938 2.188,1.135 0.156,0.198 10 false 2 1.875,1.542 2.365,1.844 0.49,0.302 10 false A18 1.875,1.688 3.74,2.24 1.865,0.552 10 false Engine Hood Courtesy Switch (Hood Lock Assembly) 5.5,1.583 5.99,1.885 0.49,0.302 10 false A106 5.469,0.948 5.625,1.146 0.156,0.198 10 false 7 5.667,1.052 6.229,1.354 0.563,0.302 10 false BNT1 5.5,1.74 6.563,2.365 1.063,0.625 10 false Engine Stop and Start ECU

CAUTION / NOTICE / HINT

For wire harness and connector inspection procedures and precautions, refer toGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING202111,999999,_V1,_111779,_0504974,RM100000001ZKRQ,

PROCEDURE

1.READ VALUE USING GTS (HOOD COURTESY SWITCH)

NOTICE:: Before performing this step, check that the engine hood can be opened by pulling the hood lock control cable.

According to the display on the GTS, read the Data List.

Powertrain > Stop and Start > Data List

Tester Display
Hood Courtesy Switch

50003 392 207

OK:

GTS Display	Condition	Normal Condition
Hood Courtesy Switch	Engine hood closed	ON
Hood Courtesy Switch	Engine hood open	OFF

Result:

Result
OK
NG

CHECK AND ADJUST HOOD LOCK ASSEMBLY FITTING (ADJUST HOOD)

Click hereVehicle Exterior>DOOR / HATCH>HOOD>ADJUSTMENT202111,999999,_59,_111831,_0501455,RM100000001Z65J,

2.INSPECT ENGINE HOOD COURTESY SWITCH (HOOD LOCK ASSEMBLY)

Inspect the engine hood courtesy switch (hood lock assembly).

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>ENGINE HOOD COURTESY SWITCH>INSPECTION202111,999999,_58,_111832,_0501285,RM100000001Z5EV,

Result:

Result
OK
NG

3.CHECK HARNESS AND CONNECTOR (ENGINE HOOD COURTESY SWITCH (HOOD LOCK ASSEMBLY) - BODY GROUND)

REPLACE ENGINE HOOD COURTESY SWITCH (HOOD LOCK ASSEMBLY)

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>ENGINE HOOD COURTESY SWITCH>REMOVAL202111,999999,_58,_111832,_0501285,RM100000001Z5EW,

3.CHECK HARNESS AND CONNECTOR (ENGINE HOOD COURTESY SWITCH (HOOD LOCK ASSEMBLY) - BODY GROUND)

Disconnect the engine hood courtesy switch (hood lock assembly) connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
Click Location & Routing(A18)Location & Routingewd_type=routing;type=c;code=A18 Click Connector(A18)Engine Compartment>Engine Room Main Wire / Transmission Wire>Engine Hood Courtesy Switch (Hood Lock Assembly)ewd_type=component;type=c;code=A18;pinno=2
A18-2 - Body ground	Always	Below 1 Ω

Tester Connection

Condition

Specified Condition

Click Location & Routing(A18)Location & Routingewd_type=routing;type=c;code=A18

Click Connector(A18)Engine Compartment>Engine Room Main Wire / Transmission Wire>Engine Hood Courtesy Switch (Hood Lock Assembly)ewd_type=component;type=c;code=A18;pinno=2

A18-2 - Body ground

Always

Below 1 Ω

Result:

Result
OK
NG

4.CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - ENGINE HOOD COURTESY SWITCH (HOOD LOCK ASSEMBLY))

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - ENGINE HOOD COURTESY SWITCH (HOOD LOCK ASSEMBLY))

Disconnect the engine stop and start ECU connector.

Disconnect the engine hood courtesy switch (hood lock assembly) connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
Click Location & Routing(A106,A18)Location & Routingewd_type=routing;type=c,c;code=A106,A18 Click Connector(A106)Instrument Panel>Engine Room Main Wire>Engine Stop and Start ECUewd_type=component;type=c;code=A106;pinno=7 Click Connector(A18)Engine Compartment>Engine Room Main Wire / Transmission Wire>Engine Hood Courtesy Switch (Hood Lock Assembly)ewd_type=component;type=c;code=A18;pinno=1
A106-7 (BNT1) - A18-1	Always	Below 1 Ω
A106-7 (BNT1) - Body ground	Always	10 kΩ or higher
A18-1 - Body ground	Always	10 kΩ or higher

Result:

Result
OK
NG

CHECK AND ADJUST HOOD LOCK ASSEMBLY FITTING (ADJUST HOOD)

Click hereVehicle Exterior>DOOR / HATCH>HOOD>ADJUSTMENT202111,999999,_59,_111831,_0501455,RM100000001Z65J,

REPAIR OR REPLACE HARNESS OR CONNECTOR