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SNOW MODE SWITCH

Description

The snow mode switch signal is sent to the combination meter from the snow mode switch. The combination meter then sends the signal to the ECM via the CAN communication line.
The snow mode is used for driving or starting the vehicle on snowy roads or slippery areas. If the snow mode is activated, the vehicle speed will not accelerate as quickly as normal to avoid vehicle slip. In other words, ECM controls rapid engine torque change by controlling the electric throttle control actuator operating speed.


Component Function Check


1. CHECK SNOW MODE SWITCH FUNCTION

1.Turn ignition switch ON.
2.Select "SNOW MODE SW" in "DATA MONITOR" mode with CONSULT.
3.Check "SNOW MODE SW" indication under the following conditions.





Is the inspection result normal?
YES- INSPECTION END
NO- Go to .


Diagnosis Procedure


1. CHECK DTC WITH COMBINATION METER

Combination Meter.
Is the inspection result normal?
YES- GO TO 2.
NO- Go to Work Flow.

2. CHECK SNOW MODE SWITCH POWER SUPPLY CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect snow mode switch harness connector.
3.Turn ignition switch ON.
4.Check the voltage between snow mode switch harness connector and ground.





Is the inspection result normal?
YES- GO TO 4.
NO- GO TO 3.

3. DETECT MALFUNCTIONING PART

Check the following.
- Fuse block harness connector M3
- 10 A fuse (No. 13)
- Harness for open or short between snow mode switch and fuse.
- Repair open circuit, short to ground or short to power in harness or connectors.

4. CHECK SNOW MODE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1.Turn ignition switch OFF.
2.Disconnect combination meter harness connector.
3.Check the continuity between snow mode switch harness connector and combination meter harness connector.





4.Also check harness for short to ground and short to power.
Is the inspection result normal?
YES- GO TO 5.
NO- Repair open circuit, short to ground or short to power in harness or connector.

5. CHECK SNOW MODE SWITCH

.
Is the inspection result normal?
YES- GO TO 6.
NO- Replace snow mode switch. Removal And Installation.

6. CHECK INTERMITTENT INCIDENT

Intermittent Incident.
- INSPECTION END


Component Inspection


1. CHECK SNOW MODE SWITCH

1.Turn ignition switch OFF.
2.Disconnect snow mode switch harness connector.
3.Check the continuity between snow mode switch terminals under the following conditions.





Is the inspection result normal?
YES- INSPECTION END
NO- Replace snow mode switch. Removal And Installation.