Si-Drive Mode Indication Does Not Change And Modes Do Not Switch After Switching Si-Drive Modes

Diagnosis:

SI-DRIVE mode does not switch.

Wiring diagram:

Engine electrical system Ref. to WIRING SYSTEM (IMPREZA MODEL)>ENGINE ELECTRICAL SYSTEM . Ref. to WIRING SYSTEM (CROSSTREK MODEL (EXCEPT FOR HEV))>ENGINE ELECTRICAL SYSTEM . Ref. to WIRING SYSTEM (CROSSTREK MODEL (HEV))>ENGINE ELECTRICAL SYSTEM .

Courtesy of SUBARU OF AMERICA, INC.

CAUTION: Note that SI-DRIVE system operates the following controls when it switches the modes.

When turning the engine OFF and then ON again, it switches to I (intelligent) mode regardless of the mode before turning off the engine.
Switches to I (intelligent) when the malfunction indicator light illuminates while the engine is running. In this case, it will not be possible to change to the S (Sports) mode.

CHECK SI-DRIVE SWITCH .
1. Turn the ignition switch to OFF.
2. Disconnect the connector from the combination meter.
3. Measure the resistance when the SI-DRIVE switch is operated.
  Connector & terminal
  
  (i10) No. 35 - Chassis ground:
  
  Does the resistance change as below?
  
  I: Less than 1 Ω
  
  S: 1.71 - 1.89 kΩ
  
  Yes : Go to 7.
  
  No : Go to 2.
CHECK HARNESS BETWEEN COMBINATION METER AND SI-DRIVE SWITCH CONNECTOR (SHORT TO GROUND) .
CAUTION: Before handling the airbag system components, refer to "CAUTION" of "General Description" in "AIRBAG SYSTEM". Ref. to AIRBAG SYSTEM>GENERAL DESCRIPTION>CAUTION .
1. Remove the driver's airbag module. Ref. to AIRBAG SYSTEM>DRIVER'S AIRBAG MODULE>REMOVAL .
2. Measure the resistance between combination meter connector and chassis ground.
  Connector & terminal
  
  (i10) No. 35 - Chassis ground:
  
  Is the resistance 1 MΩ or more?
  
  Yes : Go to 3.
  
  No : Repair the short circuit to ground in harness between combination meter and SI-DRIVE switch connector.
CHECK HARNESS BETWEEN COMBINATION METER AND ROLL CONNECTOR (OPEN) .
1. Disconnect the connector from the roll connector.
2. Measure the resistance of harness between combination meter connector and roll connector.
  Connector & terminal
  
  (i10) No. 35 - (i72) No. 7:
  
  Is the resistance less than 1 Ω?
  
  Yes : Go to 4.
  
  No : Repair the open circuit of harness between combination meter connector and roll connector.
CHECK HARNESS BETWEEN ROLL CONNECTOR AND CHASSIS GROUND (OPEN) .
Measure the resistance of harness between roll connector and chassis ground.

Connector & terminal

(i72) No. 2 - Chassis ground:

Is the resistance less than 1 Ω?

Yes : Go to 5.

No : Repair the following item.
- Open circuit in harness between roll connector and chassis ground
- Poor contact of J/C
CHECK SI-DRIVE SWITCH .
Check the SI-DRIVE switch. Ref. to EYESIGHT>SWITCHES AND HARNESS>INSPECTION .

Is the check result OK?

Yes : Go to 6.

No : Replace the SI-DRIVE switch. Ref. to EYESIGHT>SWITCHES AND HARNESS .

CHECK ROLL CONNECTOR .

Measure the resistance between roll connector terminals.

Courtesy of SUBARU OF AMERICA, INC.

Terminal No.	Inspection conditions	Standard
A7 - C2	Always	Less than 1 Ω
A8 - C3	Always	Less than 1 Ω

Is the check result OK?

Yes : The circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

NOTE: In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

No : Replace the roll connector. Ref. to AIRBAG SYSTEM>ROLL CONNECTOR .

RECHECK FAULT .
1. Connect all connectors.
2. Switch SI-DRIVE modes.
  Is there any fault?
  
  Yes : Repair the poor contact of combination meter connector. Replace the meter case assembly if defective. Ref. to INSTRUMENTATION/DRIVER INFO>COMBINATION METER .
  
  No : The circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.
  
  NOTE: In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.