Pattern Select Switch Snow Mode Circuit [12/2013 - 11/2016]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON and turn the Techstream on.
3. Enter the following menus: Powertrain / Engine / Data List / Snow or 2nd Start Mode.

   Powertrain > Engine > Data List 

   Tester Display
   Snow or 2nd Start Mode

4. Read the value displayed on the Techstream.

   OK

   Condition	Techstream Display (Snow or 2nd Start Mode)
   SNOW mode on	ON
   SNOW mode off	OFF

   Result

   Proceed to
   OK
   NG

Result:  1

OK 

CHECK FOR INTERMITTENT PROBLEMS. Refer to  CHECK FOR INTERMITTENT PROBLEMS [12/2013 - 11/2016] 

Result:  2

NG 

See step  2

1. Inspect the pattern select switch assembly (SNOW mode switch).

   for U660E: Refer to INSPECTION [12/2013 - 11/2016]

   for U660F: Refer to INSPECTION [12/2013 - 11/2016]

   Result

   Proceed to
   OK
   NG

Result:  2

NG 

REPLACE PATTERN SELECT SWITCH ASSEMBLY 

for U660E: Refer to INSPECTION [12/2013 - 11/2016]

for U660F: Refer to INSPECTION [12/2013 - 11/2016]

Result:  1

OK 

See step  3

1. Disconnect the pattern select switch assembly connector.
2. Disconnect the ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A43-11 (SNWI) - F42-8 (2ND)	Always	Below 1 Ω
   A43-11 (SNWI) or F42-8 (2ND) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result:  2

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result:  1

OK 

See step  4

1. Disconnect the pattern select switch assembly connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F42-5 (E) - Body ground	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result:  1

OK 

REPLACE ECM. Refer to  REMOVAL [12/2013 - 11/2016] 

Result:  2

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR