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

M20C-FKS ENGINE CONTROL  SFI SYSTEM  Pattern Select Switch Snow Mode Circuit  


DESCRIPTION

When SNOW mode is selected, the operation of the throttle motor is moderated to control engine output. This helps to reduce skidding of the drive wheels, and assists with takeoff acceleration, driving straightness and turning stability.

WIRING DIAGRAM

A306470E45
5.198,2.094 5.656,2.292 0.458,0.198 10 false A125 5.208,2.25 5.656,2.5 0.448,0.25 10 false ECM 4.948,0.844 5.406,1.042 0.458,0.198 10 false SNWI 4.688,0.729 5.146,0.927 0.458,0.198 10 false 57 2.083,1.188 2.542,1.385 0.458,0.198 10 false G32 2.073,1.354 4.01,1.802 1.938,0.448 10 false Combination Switch Assembly (SNOW Mode Switch) 2.385,0.719 2.844,0.917 0.458,0.198 10 false GND 2.948,0.719 3.375,0.906 0.427,0.188 10 false 2ND 3.323,0.708 3.938,0.906 0.615,0.198 10 false 6 2.135,0.719 2.594,0.917 0.458,0.198 10 false 13

PROCEDURE

1.READ VALUE USING GTS (SNOW MODE 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 / Engine / Data List / Snow Mode SW.

Powertrain > Engine > Data List
Tester Display
Snow Mode SW
50003 372 23

e.

Read the value displayed on the GTS.

OK:
Condition GTS Display (Snow Mode SW)
SNOW mode switch pushed and held ON
SNOW mode switch not pushed OFF



Result:
Proceed to
OK
NG



OK

CHECK FOR INTERMITTENT PROBLEMS

Click hereEngine / Hybrid System>M20C-FKS (ENGINE CONTROL)>SFI SYSTEM>CHECK FOR INTERMITTENT PROBLEMS


NG

2.INSPECT COMBINATION SWITCH ASSEMBLY (SNOW MODE SWITCH)
2.INSPECT COMBINATION SWITCH ASSEMBLY (SNOW MODE SWITCH)
a.

Inspect the combination switch assembly (SNOW mode switch).

Click hereDrivetrain>K121F (CVT)>COMBINATION SWITCH>INSPECTION


Result:
Proceed to
OK
NG



OK

3.CHECK HARNESS AND CONNECTOR (COMBINATION SWITCH ASSEMBLY - ECM)

NG

REPLACE COMBINATION SWITCH ASSEMBLY (INTEGRATION CONTROL AND PANEL ASSEMBLY)

Click hereDrivetrain>K121F (CVT)>COMBINATION SWITCH>REMOVAL


3.CHECK HARNESS AND CONNECTOR (COMBINATION SWITCH ASSEMBLY - ECM)
a.

Disconnect the combination switch assembly connector.


b.

Disconnect the ECM connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
G32-6 (2ND) - A125-57 (SNWI) Always Below 1 Ω
G32-6 (2ND) or A125-57 (SNWI) - Body ground and other terminals Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

4.CHECK HARNESS AND CONNECTOR (COMBINATION SWITCH ASSEMBLY - BODY GROUND)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.CHECK HARNESS AND CONNECTOR (COMBINATION SWITCH ASSEMBLY - BODY GROUND)
a.

Disconnect the combination switch assembly connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
G32-13 (GND) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPLACE ECM

Click hereEngine / Hybrid System>M20C-FKS (ENGINE CONTROL)>ECM>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR