RM35X0E _51 Engine / Hybrid System _078825 STOP AND START _0382334 STOP AND START SYSTEM J

STOP AND START  STOP AND START SYSTEM  Stop and Start Priority Control System  


DESCRIPTION

In stop and start control status, there is normal status (Standard) and stop and start priority status (Extended).

Stop and start control status can be switched to the desired mode by pressing and holding the stop and start system cancel switch (eco run cancel switch assembly), or by operating the steering pad switch assembly, and the mode change is also shown on the multi-information display screen.

When the mode has been switched by pressing and holding the stop and start system cancel switch (eco run cancel switch assembly), a signal is sent directly from the stop and start system cancel switch (eco run cancel switch assembly) to the engine stop and start ECU.

When the steering pad switch assembly is used to select a control mode, a status change request signal is sent from the combination meter assembly to the engine stop and start ECU via CAN communication.

Cooperative control is performed by the air conditioning amplifier assembly and engine stop and start ECU based on the selected control mode.

When stop and start priority control (Extended) is selected, the operation time of stop and start control will be extended in order to improve fuel economy.

WIRING DIAGRAM

A444553E01
4.885,3.615 7.104,3.885 2.219,0.271 10 false Air Conditioning Amplifier Assembly 2.427,4.667 4.417,4.896 1.99,0.229 10 false Steering Pad Switch Assembly 2.448,3.958 4.208,4.24 1.76,0.281 10 false Spiral Cable Sub-assembly 0.573,6.354 2.313,6.615 1.74,0.26 10 false : CAN Communication Line 2.271,1.333 4.167,1.615 1.896,0.281 10 false Combination Meter Assembly 5.313,1.219 7.052,1.479 1.74,0.26 10 false Engine Stop and Start ECU 5.354,3.24 5.969,3.438 0.615,0.198 10 false CANL 5.344,2.906 5.958,3.104 0.615,0.198 10 false CANH 5.417,0.427 6.031,0.625 0.615,0.198 10 false CANH 3.5,0.427 4.115,0.625 0.615,0.198 10 false CANH 5.427,0.792 6.042,0.99 0.615,0.198 10 false CANL 3.542,0.802 4.156,1 0.615,0.198 10 false CANL 2.292,1.167 2.75,1.365 0.458,0.198 10 false N22 2.427,0.385 3.042,0.583 0.615,0.198 10 false MSTI 2.438,0.781 3.052,0.979 0.615,0.198 10 false MSM+ 2.177,0.531 2.458,0.75 0.281,0.219 10 false 15 2.177,0.906 2.448,1.094 0.271,0.188 10 false 32 2.448,2.677 2.906,2.875 0.458,0.198 10 false O5 2.302,2.417 2.573,2.604 0.271,0.188 10 false 24 2.177,3.615 2.448,3.802 0.271,0.188 10 false 4 1.5,3.615 1.771,3.802 0.271,0.188 10 false 11 0.792,3.615 1.063,3.802 0.271,0.188 10 false 10 0.813,4.354 1.083,4.542 0.271,0.188 10 false 5 1.5,4.333 1.771,4.521 0.271,0.188 10 false 4 2.146,4.333 2.417,4.521 0.271,0.188 10 false 10 2.552,2.292 3.167,2.49 0.615,0.198 10 false SWG 0.417,3.615 1.031,3.813 0.615,0.198 10 false N58 1.125,3.625 1.74,3.823 0.615,0.198 10 false N58 1.781,3.604 2.396,3.802 0.615,0.198 10 false N58 1.948,3.854 2.563,4.052 0.615,0.198 10 false EAU 0.49,4.344 1.104,4.542 0.615,0.198 10 false z1 1.188,4.344 1.802,4.542 0.615,0.198 10 false z1 1.844,4.344 2.458,4.542 0.615,0.198 10 false z1 1.292,3.844 1.656,4.052 0.365,0.208 10 false +DP 0.604,3.844 1.219,4.042 0.615,0.198 10 false +DP2 2.438,2.854 4.167,3.333 1.729,0.479 10 false Radio and Display Receiver Assembly 0.375,4.583 0.99,4.781 0.615,0.198 10 false +DP2 1.104,4.583 1.469,4.792 0.365,0.208 10 false +DP 1.792,4.583 2.406,4.781 0.615,0.198 10 false EAU

CAUTION / NOTICE / HINT

NOTICE:
·

Before replacing the engine stop and start ECU, read the number of starter operations and write it into a new engine stop and start ECU.

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>REGISTRATION

·

After replacing the engine stop and start ECU or air conditioning amplifier assembly, reset and perform learning of the air conditioning information in the engine stop and start ECU.

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>REGISTRATION

·

After replacing the engine stop and start ECU or airbag sensor assembly, clear and calibrate the deceleration sensor zero point in the engine stop and start ECU.

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>REGISTRATION

·

for Automatic Transmission:

When the engine stop and start ECU or electromagnetic oil pump is replaced, check the electromagnetic oil pump.

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>REGISTRATION



HINT:
·

When stop and start priority control (Extended) is selected, the operation of the air conditioning system is limited. If the customer reports that the cooling effectiveness of the air conditioning system is poor, check the selected control mode. If stop and start priority control (Extended) is selected, cancel the control mode and check if the cooling effectiveness of the air conditioning system improves. If it improves, explain to the customer that the operation of the air conditioning system was limited by stop and start control.

·

Depending on the vehicle conditions, the stop and start operation time may not change even if stop and start priority control (Extended) is selected.



PROCEDURE

1.CHECK PROBLEM SYMPTOMS
a.

Check the problem symptoms.

HINT:
·

Check each symptom by checking the suspected areas in the table below.

·

By using the GTS and entering the following menus, the selected mode can be confirmed.

Powertrain / Stop and Start / Data List / Stop & Start A/C Mode



Result:
Problem Symptoms Trouble Area Proceed to
Multi-information display screen does not change after pressing steering pad switch assembly
·

Steering pad switch assembly

·

Spiral cable sub-assembly

·

Combination meter assembly

·

Engine stop and start ECU

·

Wire harness or connector (steering pad switch assembly - combination meter assembly, radio and display receiver assembly)

·

CAN communication system


A
When the stop and start system cancel switch (eco run cancel switch assembly) is pressed and held, the status change interrupt display in the combination meter assembly is not displayed, and control does not change
·

Stop and start system cancel switch (eco run cancel switch assembly)

·

Engine stop and start ECU

·

Wire harness or connector (stop and start system cancel switch (eco run cancel switch assembly) - engine stop and start ECU)


B
Even though the stop and start system cancel switch (eco run cancel switch assembly) and steering pad switch assembly are operated, the multi-information display screen does not change, and control does not change
·

Engine stop and start ECU

·

CAN communication system


C
Multi-information display screen changes without pressing steering pad switch assembly
·

Steering pad switch assembly

·

Spiral cable sub-assembly

·

Wire harness or connector (steering pad switch assembly - combination meter assembly, radio and display receiver assembly)


D
The status change interrupt display in the combination meter assembly is not displayed, but control changes Combination meter assembly E
The status change interrupt display in the combination meter assembly is displayed, but control does not change
·

Air conditioning amplifier assembly

·

CAN communication system


F
Control mode returns to default mode after turning ignition switch ON Engine stop and start ECU G




A

2.CHECK OPERATION

B

GO TO STOP AND START CANCEL SWITCH CIRCUIT

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>Stop and Start Cancel Switch Circuit


C

3.CHECK DTC OUTPUT

D

4.CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - COMBINATION METER ASSEMBLY, RADIO AND DISPLAY RECEIVER ASSEMBLY)

E

GO TO METER / GAUGE SYSTEM

Click hereVehicle Interior>METER / GAUGE / DISPLAY>METER / GAUGE SYSTEM>HOW TO PROCEED WITH TROUBLESHOOTING


F

7.CHECK DTC OUTPUT

G

8.CHECK DTC OUTPUT
2.CHECK OPERATION
a.

Using the steering pad switch assembly, check that all functions other than "Stop & Start Settings" can be selected.

Result:
Result Proceed to
Only "Stop & Start Settings" cannot be selected A
No function can be selected using the steering pad switch assembly B




A

3.CHECK DTC OUTPUT

B

4.CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - COMBINATION METER ASSEMBLY, RADIO AND DISPLAY RECEIVER ASSEMBLY)
3.CHECK DTC OUTPUT
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Perform a road test.


e.

Enter the following menus: Powertrain / Stop and Start / Trouble Codes.


f.

Read the DTCs.

Powertrain > Stop and Start > Trouble Codes
50001 392
Result:
Result Proceed to
DTCs are not output A
CAN DTCs are output B




A

REPLACE ENGINE STOP AND START ECU

Click hereEngine / Hybrid System>STOP AND START>ENGINE STOP AND START ECU>REMOVAL


B

GO TO CAN COMMUNICATION SYSTEM

Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM>HOW TO PROCEED WITH TROUBLESHOOTING


4.CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - COMBINATION METER ASSEMBLY, RADIO AND DISPLAY RECEIVER ASSEMBLY)
a.

Disconnect the spiral cable sub-assembly connector.


b.

Disconnect the combination meter assembly connector.


c.

Disconnect the radio and display receiver assembly connector.


d.

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

Standard Resistance:
Tester Connection Condition Specified Condition
N58-10 (+DP2) - N22-15 (MSTI) Always Below 1 Ω
N58-11 (+DP) - N22-32 (MSM+) Always Below 1 Ω
N58-4 (EAU) - O5-24 (SWG) Always Below 1 Ω
N58-10 (+DP2) or N22-15 (MSTI) - Body ground and other terminals Always 10 kΩ or higher
N58-11 (+DP) or N22-32 (MSM+) - Body ground and other terminals Always 10 kΩ or higher
N58-4 (EAU) or O5-24 (SWG) - Body ground and other terminals Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

5.INSPECT SPIRAL CABLE SUB-ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

7.CHECK DTC OUTPUT
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Perform a road test.


e.

Enter the following menus: Powertrain / Stop and Start / Trouble Codes.


f.

Read the DTCs.

Powertrain > Stop and Start > Trouble Codes
50001 392
Result:
Result Proceed to
DTCs are not output A
CAN DTCs are output B




A

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING AMPLIFIER>REMOVAL


B

GO TO CAN COMMUNICATION SYSTEM

Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM>HOW TO PROCEED WITH TROUBLESHOOTING


8.CHECK DTC OUTPUT
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Perform a road test.


e.

Enter the following menus: Powertrain / Stop and Start / Trouble Codes.


f.

Read the DTCs.

Powertrain > Stop and Start > Trouble Codes
50001 392
Result:
Result Proceed to
DTCs are not output A
DTCs are output B




A

REPLACE ENGINE STOP AND START ECU

Click hereEngine / Hybrid System>STOP AND START>ENGINE STOP AND START ECU>REMOVAL


B

GO TO DIAGNOSTIC TROUBLE CODE CHART

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>DIAGNOSTIC TROUBLE CODE CHART