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

STOP AND START  STOP AND START SYSTEM  P186262  Clutch Pedal Switch Signal Compare Failure  


DESCRIPTION

HINT:

This DTC is applicable to Manual Transmission models only.


There are 2 clutch pedal switches for the clutch pedal. The clutch switch assembly (for upper) is used for stopping and restarting of the engine by stop and start control. During the stop and start control, the clutch start switch assembly (for lower) is used only when the clutch switch assembly (for upper) is stuck on or the fail-safe function is activated.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Memory Note
P186262 Clutch Pedal Switch Signal Compare Failure Both of the following conditions continue for 0.5 seconds or more (1 trip detection logic):
·

Clutch start switch assembly (for lower) is on.

·

Clutch switch assembly (for upper) is on.


·

Clutch start switch assembly (for lower)

·

Clutch switch assembly (for upper)

·

Wire harness or connector

·

Engine stop and start ECU


Blinks DTC stored SAE Code: P1862

CONFIRMATION DRIVING PATTERN

CONFIRMATION AFTER TROUBLESHOOTING


HINT:
·

If the cable is disconnected from the battery terminal, stop and start control is prohibited until refresh charge is completed.

In this case, let the vehicle idle to complete the refresh charge. The refresh charge is complete when the Data List item "Status of Battery Charge Control" changes from "Refresh Charge Mode". (Usually, idling the engine for 5 to 60 minutes with the battery fluid temperature at 11°C (51°F) or higher, the refresh charge will be completed.)

·

If the GTS is not available and the Data List item "Status of Battery Charge Control" cannot be checked, charge the battery by idling the engine for approximately 5 to 60 minutes or driving the vehicle, and then drive the vehicle and check that stop and start control operates.

If the engine is started with the hood open, the system determines that a jump start has occurred. Therefore, make sure that the hood is closed before starting the engine and driving the vehicle.

·

After the refresh charge completes, turn the ignition switch off, wait for at least 30 seconds, and then start the engine again. If the vehicle enters refresh charge mode again while the engine is idling, the initial refresh charge did not properly complete, so wait for the refresh charge to complete.

·

Allow the engine to idle for 3 minutes after it is warmed up and check that the engine idle speed is within 50 rpm of the target idle speed.



a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Clear the DTCs.

Powertrain > Stop and Start > Clear DTCs
50002 392

e.

Start the engine.


f.
A206932E04
1.302,1.948 1.302,2.708 false 1.594,1.948 1.594,2.708 false 1.323,2.167 1.865,2.167 false 1.365,2.208 1.323,2.167 1.323,2.167 1.365,2.135 false 1.823,2.135 1.865,2.167 1.865,2.167 1.823,2.208 false 1.708,2.167 1.958,2.74 false 1.469,2.167 1.208,2.74 false 1.542,2.135 1.594,2.167 1.594,2.167 1.542,2.208 false 1.635,2.208 1.594,2.167 1.594,2.167 1.635,2.135 false 1.875,1.927 1.875,2.708 false 0.135,0.115 1.458,0.302 1.323,0.188 10 Clutch Switch Signal 1.99,2.719 3.135,2.906 1.146,0.188 10 1 second or more 0.281,2.719 1.052,3.031 0.771,0.313 10 1 second or more 0.583,1.177 0.833,1.333 0.25,0.156 10 ON 0.583,1.854 0.896,2.01 0.313,0.156 10 OFF

Fully depress the clutch pedal for 1 second or more. Release the clutch pedal and wait for at least 1 second.


g.

Repeat the previous step 3 times.


h.

Check that no DTCs are output.

Powertrain > Stop and Start > Trouble Codes
50001 392


STOP AND START SYSTEM OPERATION CHECK


HINT:
·

If the cable is disconnected from the battery terminal, stop and start control is prohibited until refresh charge is completed.

In this case, let the vehicle idle to complete the refresh charge. The refresh charge is complete when the Data List item "Status of Battery Charge Control" changes from "Refresh Charge Mode". (Usually, idling the engine for 5 to 60 minutes with the battery fluid temperature at 11°C (51°F) or higher, the refresh charge will be completed.)

·

If the GTS is not available and the Data List item "Status of Battery Charge Control" cannot be checked, charge the battery by idling the engine for approximately 5 to 60 minutes or driving the vehicle, and then drive the vehicle and check that stop and start control operates.

If the engine is started with the hood open, the system determines that a jump start has occurred. Therefore, make sure that the hood is closed before starting the engine and driving the vehicle.

·

After the refresh charge completes, turn the ignition switch off, wait for at least 30 seconds, and then start the engine again. If the vehicle enters refresh charge mode again while the engine is idling, the initial refresh charge did not properly complete, so wait for the refresh charge to complete.



a.

Start the engine and warm it up.


b.

Turn the air conditioning system off.


c.

Drive the vehicle at 7 km/h (4.3 mph) or more.

CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.



d.

Stop the vehicle, move the shift lever to neutral and release the clutch pedal.


e.

Allow the engine to stop by stop and start control.


f.

Depress the clutch pedal and start the engine.



WIRING DIAGRAM

A444514E01
6.188,0.844 6.646,1.042 0.458,0.198 10 false CLU 3.438,0.625 3.896,0.823 0.458,0.198 10 false 11 4.25,1.219 4.708,1.417 0.458,0.198 10 false M4 4.229,1.385 5.729,1.771 1.5,0.385 10 false Clutch Switch Assembly (for Upper) 1.969,5.51 3.073,5.917 1.104,0.406 10 false Ignition or Starter Switch Assembly 0.167,5.875 0.479,6.063 0.313,0.188 10 false A 5.385,6.417 5.698,6.604 0.313,0.188 10 false C 2.021,3.063 2.396,3.323 0.375,0.26 10 false AM2 0.625,5.396 1.292,5.594 0.667,0.198 10 false J/B-ALT 2.063,4.906 2.375,5.094 0.313,0.188 10 false AM2 1.969,5.344 2.365,5.531 0.396,0.188 10 false N28 2.833,4.698 3.146,4.885 0.313,0.188 10 false IG2 2.823,4.99 3.198,5.198 0.375,0.208 10 false ST2 0.49,5.885 0.802,6.073 0.313,0.188 10 false B 3.198,4.99 3.51,5.177 0.313,0.188 10 false 4 3.188,4.698 3.5,4.885 0.313,0.188 10 false 2 3.688,5.708 4,5.896 0.313,0.188 10 false 1 4.76,5.719 5.073,5.906 0.313,0.188 10 false 2 5.927,5.719 6.24,5.906 0.313,0.188 10 false 21 6.188,4.854 6.5,5.042 0.313,0.188 10 false CLL 6.188,5.583 6.5,5.771 0.313,0.188 10 false STA 3.792,5.948 4.104,6.135 0.313,0.188 10 false M7 3.792,6.115 5.083,6.521 1.292,0.406 10 false Clutch Start Switch Assembly (for Lower) 5.896,5 6.208,5.188 0.313,0.188 10 false 17 5.969,6.063 6.406,6.26 0.438,0.198 10 false N32 5.979,6.25 7.094,6.708 1.115,0.458 10 false Engine Stop and Start ECU 5.49,0.969 5.802,1.156 0.313,0.188 10 false 2 4.219,0.958 4.531,1.146 0.313,0.188 10 false 1 1.188,0.833 1.646,1.031 0.458,0.198 10 false 3G 1.208,2.177 1.667,2.375 0.458,0.198 10 false 3B 4.417,0.958 4.875,1.156 0.458,0.198 10 false CL+ 5.156,0.948 5.615,1.146 0.458,0.198 10 false CL- 3.448,2.167 3.906,2.365 0.458,0.198 10 false 3A 3.448,0.833 3.906,1.031 0.458,0.198 10 false 3C 3.448,1.958 3.76,2.146 0.313,0.188 10 false 17 2.448,1.01 3.51,1.229 1.063,0.219 10 false ECU-IG1 NO.2 1.177,3.708 4.271,3.938 3.094,0.229 10 false Instrument Panel Junction Block Assembly 1.229,0.635 1.542,0.823 0.313,0.188 10 false 1 1.25,1.969 1.563,2.156 0.313,0.188 10 false 3 5.927,0.969 6.385,1.167 0.458,0.198 10 false 11 1.792,2.5 2.51,2.698 0.719,0.198 10 false IG1 NO.1 1.198,3.333 1.656,3.531 0.458,0.198 10 false 3A 1.208,2.917 1.667,3.115 0.458,0.198 10 false 3F 1.208,3.135 1.667,3.333 0.458,0.198 10 false 44 1.24,2.698 1.552,2.885 0.313,0.188 10 false 1 1.865,4.906 2.177,5.094 0.313,0.188 10 false 1 3.906,5.698 4.219,5.885 0.313,0.188 10 false B 4.552,5.698 4.865,5.885 0.313,0.188 10 false L

A444515E01
0.813,5.083 1.885,5.281 1.073,0.198 10 false Battery 0.656,3.604 1.542,4.406 0.885,0.802 10 false Fusible Link Block Assembly (Main Battery) 0.99,2.25 2.063,2.448 1.073,0.198 10 false ST NO.1 1.01,1.479 2.083,1.677 1.073,0.198 10 false ST NO.2 0.667,0.708 1.74,0.906 1.073,0.198 10 false ALT 0.156,0.115 0.438,0.365 0.281,0.25 10 false A 1.781,4.385 3.271,4.625 1.49,0.24 10 false Starter Assembly 2.583,1.688 3.656,1.885 1.073,0.198 10 false STARTER 4.104,4.531 5.177,4.729 1.073,0.198 10 false STARTER NO.2 5.896,2.875 6.344,3.083 0.448,0.208 10 false N31 5.885,3.469 6.333,3.677 0.448,0.208 10 false N31 5.875,4.198 6.323,4.406 0.448,0.208 10 false N32 2.625,2.958 3.063,3.208 0.438,0.25 10 false SL1 2.604,3.844 3.042,4.094 0.438,0.25 10 false SL2 2.688,3.427 3.125,3.677 0.438,0.25 10 false ST 1.75,3.229 2.188,3.479 0.438,0.25 10 false B 1.417,3.229 1.854,3.479 0.438,0.25 10 false F3 4.052,0.125 4.333,0.375 0.281,0.25 10 false C 5.271,5.063 7.052,5.333 1.781,0.271 10 false Engine Stop and Start ECU 6.26,2.875 6.708,3.083 0.448,0.208 10 false GND2 6.26,3.469 6.708,3.677 0.448,0.208 10 false GND1 6.25,4.188 6.802,4.396 0.552,0.208 10 false STA2 2.979,2.969 3.417,3.219 0.438,0.25 10 false E44 2.979,3.438 3.417,3.688 0.438,0.25 10 false E23 2.406,1.031 2.844,1.281 0.438,0.25 10 false 1 3.302,1.031 3.74,1.281 0.438,0.25 10 false 2 3.302,1.438 3.74,1.688 0.438,0.25 10 false 3 2.427,1.427 2.865,1.677 0.438,0.25 10 false 5 3.052,2.74 3.49,2.99 0.438,0.25 10 false 1 3.052,3.24 3.49,3.49 0.438,0.25 10 false 1 3.052,3.667 3.49,3.917 0.438,0.25 10 false 2 1.458,3.01 1.896,3.26 0.438,0.25 10 false 1 2.969,3.854 3.406,4.104 0.438,0.25 10 false E44 4.875,3.99 5.313,4.24 0.438,0.25 10 false 5 4.146,3.99 4.583,4.24 0.438,0.25 10 false 3 4.885,4.323 5.323,4.573 0.438,0.25 10 false 2 4.156,4.313 4.594,4.563 0.438,0.25 10 false 1 5.969,2.656 6.406,2.906 0.438,0.25 10 false 2 5.958,3.271 6.396,3.521 0.438,0.25 10 false 8 5.917,3.99 6.354,4.24 0.438,0.25 10 false 23 0.5,0.125 0.781,0.375 0.281,0.25 10 false B

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



HINT:
·

Using the GTS, read the freeze frame data before troubleshooting. System condition information is recorded as freeze frame data the moment a DTC is stored. This information can be useful when troubleshooting.

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>FREEZE FRAME DATA

·

DTCs for the stop and start system are not cleared even if the malfunction has been repaired. After repairing the malfunction, be sure to clear the DTCs.

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>DTC CHECK / CLEAR



PROCEDURE

1.READ VALUE USING GTS (CLUTCH UPPER SW AND CLUTCH LOWER SW)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Powertrain / Stop and Start / Data List / Clutch Upper SW and Clutch Lower SW.

Powertrain > Stop and Start > Data List
Tester Display
Clutch Lower Switch
Clutch Upper Switch
50003 392 594,595

e.

Depress the clutch pedal and read the values displayed on the GTS.

OK:
Tester Display Condition Normal Condition
Clutch Upper Switch Fully Depressed OFF
Clutch Lower Switch Fully Depressed ON
Clutch Upper Switch Fully Released ON
Clutch Lower Switch Fully Released OFF



Result:
Proceed to
NG
OK



NG

2.INSPECT CLUTCH START SWITCH ASSEMBLY (FOR LOWER)

OK

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


2.INSPECT CLUTCH START SWITCH ASSEMBLY (FOR LOWER)
a.

Inspect the clutch start switch assembly (for lower).

Click hereDrivetrain>CLUTCH>CLUTCH PEDAL SWITCH>INSPECTION


Result:
Proceed to
OK
NG



OK

3.INSPECT CLUTCH SWITCH ASSEMBLY (FOR UPPER)

NG

REPLACE CLUTCH START SWITCH ASSEMBLY (FOR LOWER)

Click hereDrivetrain>CLUTCH>CLUTCH PEDAL SWITCH>REMOVAL


3.INSPECT CLUTCH SWITCH ASSEMBLY (FOR UPPER)
a.

Inspect the clutch switch assembly (for upper).

Click hereDrivetrain>CLUTCH>CLUTCH PEDAL SWITCH>INSPECTION


Result:
Proceed to
OK
NG



OK

4.CHECK HARNESS AND CONNECTOR (ENGINE START AND STOP ECU - CLUTCH START SWITCH ASSEMBLY (FOR LOWER))

NG

REPLACE CLUTCH SWITCH ASSEMBLY (FOR UPPER)

Click hereDrivetrain>CLUTCH>CLUTCH PEDAL SWITCH>REMOVAL


4.CHECK HARNESS AND CONNECTOR (ENGINE START AND STOP ECU - CLUTCH START SWITCH ASSEMBLY (FOR LOWER))
a.

Disconnect the engine stop and start ECU connector.


b.

Disconnect the clutch start switch assembly (for lower) connector.


c.

Disconnect the ignition or starter switch assembly connector.


d.

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

Standard Resistance:
Tester Connection Condition Specified Condition
N32-17 (CLL) - M7-1 (B) Always Below 1 Ω
N32-17 (CLL) or M7-1 (B) - Body ground and other terminals Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

5.CHECK HARNESS AND CONNECTOR (ENGINE START AND STOP ECU - CLUTCH SWITCH ASSEMBLY (FOR UPPER))

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.CHECK HARNESS AND CONNECTOR (ENGINE START AND STOP ECU - CLUTCH SWITCH ASSEMBLY (FOR UPPER))
a.

Disconnect the engine stop and start ECU connector.


b.

Disconnect the clutch switch assembly (for upper) connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
N32-11 (CLU) - M4-2 (CL-) Always Below 1 Ω
N32-11 (CLU) or M4-2 (CL-) - Body ground and other terminals Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE ENGINE STOP AND START ECU

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


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR