RM36D0EC _51 Engine / Hybrid System _087036 M20C-FKS ENGINE CONTROL _0418131 SFI SYSTEM J

M20C-FKS ENGINE CONTROL SFI SYSTEM Drive Start Control

DESCRIPTION

The drive start control is controlled by the ECM.

If the ECM determines that the shift lever and accelerator pedal are operated abnormally, engine output is restricted and, when necessary, a warning is displayed on the combination meter assembly.

0.365,0.625 5.406,0.823 5.042,0.198 10 false Accelerator Pedal Position Sensor 2.646,0.938 4.167,1.302 1.521,0.365 10 false Actual Accelerator Pedal Opening Value 5.698,1.271 7.115,1.781 1.417,0.51 10 false Meter Display Request 0.479,1.76 2.771,1.958 2.292,0.198 10 false Airbag Sensor Assembly 2.698,2.458 5.76,2.656 3.063,0.198 10 false Vehicle Acceleration 0.458,3.729 1.813,4.146 1.354,0.417 10 false Shift Position Switch 2.698,4.156 5.76,4.354 3.063,0.198 10 false Shift Lever Position 0.417,5.302 1.969,5.677 1.552,0.375 10 false Vehicle Speed Sensor or Wheel Speed Sensor 2.75,5.688 4.74,5.885 1.99,0.198 10 false Vehicle Speed 5.698,4.51 6.646,4.938 0.948,0.427 10 false Engine Output Request 4.354,6.333 4.813,6.531 0.458,0.198 10 false ECM

CAUTION / NOTICE / HINT

HINT:: Even if the accelerator pedal position is maintained, the engine output may increase when driving uphill and decrease when driving downhill. This is due to the drive start control controlling the engine output, and is not a malfunction.

PROCEDURE

1.PAST ACTIVATION CONFIRMATION

Check if the customer operated the vehicle in a way that would cause the drive start control to operate.

Activation conditions

Pattern A (When all of the following conditions are met, control starts.)

The accelerator pedal is open by approximately 1/5 or more.

The shift lever is moved from P to any forward position D (including other forward shift positions) or R.

Pattern B (When all of the following conditions are met, control starts.)

The accelerator pedal is open by approximately 1/5 or more.

The shift lever is moved from R to any forward position D (including other forward shift positions), any forward position D (including other forward shift positions) to R, or N to R.

HINT:: Operation may not be possible in certain situations.

3.063,0.99 3.531,0.458 3.531,0.458 3.677,0.458 false 2.625,1.708 4.771,1.417 4.771,1.417 4.896,1.417 true 4.073,3.052 4.448,2.573 4.448,2.573 4.656,2.573 false 4.063,3.531 4.844,3.083 4.844,3.083 4.969,3.083 true 4.563,3.958 5.052,3.531 5.052,3.531 5.219,3.531 false 3.729,0.396 6.323,0.708 2.594,0.313 10 false Shift operation of pattern A or pattern B 1.021,1.198 2.74,1.49 1.719,0.292 10 false Shift Lever Position 0.854,1.625 2.479,1.896 1.625,0.271 10 false Accelerator Pedal ON 0.792,1.948 2.479,2.24 1.688,0.292 10 false Accelerator Pedal OFF 4.938,1.333 6.677,1.844 1.74,0.51 10 false Accelerator pedal is open by approximately 1/5 or more. 2.792,2.344 4,2.708 1.208,0.365 10 false Activated 1.208,3.302 2.115,3.552 0.906,0.25 10 false Engine Output 4.719,2.479 6,2.802 1.281,0.323 10 false without control 5.021,3.021 5.823,3.375 0.802,0.354 10 false Restricted 5.281,3.458 6.25,3.802 0.969,0.344 10 false with control * 3.208,4.104 3.719,4.417 0.51,0.313 10 false Time 4.552,4.115 7.104,4.521 2.552,0.406 10 false *: The engine output restricted level differs between pattern A and pattern B.

Items Controlled

Engine output is restricted.

Deactivation Conditions

The accelerator pedal is released.

The shift lever is in P or N.

HINT:: ·

The restraint level for engine output differs for pattern A and pattern B.

·

While the controls are active, the engine output is corrected corresponding to the slope gradient.

·

Control will not operate when TRC operation is stopped.

·

Control will also not operate under the following conditions. (if equipped)

-

When in auto LSD mode

-

When the transfer switch is operated to switch the status to L4

-

When the center differential is locked

-

When TRAIL mode is on

-

When multi-terrain select is selected

Result:

Result	Proceed to
Performed	A
Not performed	B

2.CHECK DTC OUTPUT

SYSTEM NORMAL (GO TO PROBLEM SYMPTOM TABLE)

Click hereEngine / Hybrid System>M20C-FKS (ENGINE CONTROL)>SFI SYSTEM>PROBLEM SYMPTOMS TABLE202304,999999,_51,_087036,_0418131,RM1000000029CMU,

2.CHECK DTC OUTPUT

Connect the GTS to the DLC3.

Turn the ignition switch to ON.

Turn the GTS on.

Enter the following menus: System Select / Health Check.

Check for DTCs.

Result:

Result	Proceed to
DTCs are not output (Hunting)	A
DTCs are not output (Hesitation/poor acceleration)	B
DTCs are output	C

3.READ VALUE USING GTS (FR, FL, RR, RL WHEEL SPEED)

5.INSPECT SHIFT LEVER POSITION SENSOR

GO TO DTC CHART

3.READ VALUE USING GTS (FR, FL, RR, RL WHEEL SPEED)

Connect the GTS to the DLC3.

Turn the ignition switch to ON.

Turn the GTS on.

Start the engine.

Enter the following menus: Chassis / Brake/EPB / Data List / FR Wheel Speed, FL Wheel Speed, RR Wheel Speed and RL Wheel Speed.

Chassis > Brake/EPB > Data List

Tester Display
FR Wheel Speed
FL Wheel Speed
RR Wheel Speed
RL Wheel Speed

50003 435 13,14,15,16

Read the value displayed on the GTS.

Standard:

GTS Display	Condition	Specified Condition
FR Wheel Speed FL Wheel Speed RR Wheel Speed RL Wheel Speed	Vehicle stopped, engine running	0 km/h (0 mph)
FR Wheel Speed FL Wheel Speed RR Wheel Speed RL Wheel Speed	Vehicle being driven at constant speed between 16.1 to 64.4 km/h (10 to 40 mph)	No large fluctuations when driving at a constant speed

CAUTION:: When performing a drive test, obey all speed limits and traffic laws.

HINT:: Data can be captured relatively easily by using the snapshot function in the Data List. Confirm the data after performing the drive test.

Result:

Proceed to
OK
NG

4.READ VALUE USING GTS (FORWARD AND REARWARD G)

INSPECT FRONT OR REAR SPEED SENSOR

4.READ VALUE USING GTS (FORWARD AND REARWARD G)

Connect the GTS to the DLC3.

Start the engine.

Turn the GTS on.

Enter the following menus: Chassis / Brake/EPB / Data List / Forward and Rearward G.

Chassis > Brake/EPB > Data List

Tester Display
Forward and Rearward G

50003 435 26

Read the value displayed on the GTS.

Standard:

GTS Display	Condition	Specified Condition
Forward and Rearward G	During deceleration	Value changes with vehicle speed
Forward and Rearward G	During acceleration	Value changes with vehicle speed

CAUTION:: When performing a drive test, obey all speed limits and traffic laws.

HINT:: Data can be captured relatively easily by using the snapshot function in the Data List. Confirm the data after performing the drive test.

Result:

Proceed to
OK
NG

SYSTEM NORMAL (GO TO PROBLEM SYMPTOM TABLE)

Click hereEngine / Hybrid System>M20C-FKS (ENGINE CONTROL)>SFI SYSTEM>PROBLEM SYMPTOMS TABLE202304,999999,_51,_087036,_0418131,RM1000000029CMU,

INSPECT AIRBAG SENSOR ASSEMBLY

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM>HOW TO PROCEED WITH TROUBLESHOOTING201910,202405,_58,_083100,_0400491,RM100000001J8AS,202405,999999,_58,_083100,_0694959,RM100000002LV16,

5.INSPECT SHIFT LEVER POSITION SENSOR

Inspect the shift lever position sensor.

for 2WD: Click hereDrivetrain>K121 (CVT)>SHIFT LEVER POSITION SENSOR>INSPECTION202304,999999,_52,_138176,_0579404,RM1000000029EN6,

for AWD: Click hereDrivetrain>K121F (CVT)>SHIFT LEVER POSITION SENSOR>INSPECTION202304,999999,_52,_138817,_0584988,RM1000000029ILC,

Result:

Result	Proceed to
Normal	A
Abnormal	B

6.READ VALUE USING GTS (ACCELERATOR POSITION SENSOR NO. 1 VOLTAGE % AND NO. 2 VOLTAGE %)

REPLACE SHIFT LEVER POSITION SENSOR

for 2WD: Click hereDrivetrain>K121 (CVT)>SHIFT LEVER POSITION SENSOR>REMOVAL202304,202405,_52,_138176,_0579404,RM1000000029EN4,202405,202409,_52,_138176,_0579404,RM100000002LVKI,202409,999999,_52,_138176,_0579404,RM100000002NGJ8,

for AWD: Click hereDrivetrain>K121F (CVT)>SHIFT LEVER POSITION SENSOR>REMOVAL202304,202405,_52,_138817,_0584988,RM1000000029ILB,202405,202409,_52,_138817,_0584988,RM100000002LX7J,202409,999999,_52,_138817,_0584988,RM100000002NGKS,

6.READ VALUE USING GTS (ACCELERATOR POSITION SENSOR NO. 1 VOLTAGE % AND NO. 2 VOLTAGE %)

Connect the GTS to the DLC3.

Turn the ignition switch to ON.

Turn the GTS on.

Enter the following menus: Powertrain / Engine / Data List / Accelerator Position Sensor No.1 Voltage % and Accelerator Position Sensor No.2 Voltage %.

Powertrain > Engine > Data List

Tester Display
Accelerator Position Sensor No.1 Voltage %
Accelerator Position Sensor No.2 Voltage %

50003 372 256,257

Read the value displayed on the GTS.

OK:

GTS Display	Condition	Specified Condition
Accelerator Position Sensor No.1 Voltage %	Accelerator Pedal Released → Depressed	Values smoothly change following accelerator pedal operation
Accelerator Position Sensor No.2 Voltage %	Accelerator Pedal Released → Depressed

HINT:: For numerical values of Accelerator Position Sensor No.1 Voltage % and Accelerator Position Sensor No.2 Voltage %, refer to the Data List.; Click hereEngine / Hybrid System>M20C-FKS (ENGINE CONTROL)>SFI SYSTEM>DATA LIST / ACTIVE TEST202304,202405,_51,_087036,_0418131,RM1000000029CMZ,202405,999999,_51,_087036,_0418131,RM100000002IF5C,

Result:

Proceed to
OK
NG

SYSTEM NORMAL (GO TO PROBLEM SYMPTOM TABLE)

Click hereEngine / Hybrid System>M20C-FKS (ENGINE CONTROL)>SFI SYSTEM>PROBLEM SYMPTOMS TABLE202304,999999,_51,_087036,_0418131,RM1000000029CMU,

REPLACE ACCELERATOR PEDAL SENSOR ASSEMBLY

Click hereEngine / Hybrid System>M20C-FKS (ENGINE CONTROL)>ACCELERATOR PEDAL>REMOVAL202004,999999,_51,_087036,_0418141,RM100000001MIN6,