Auto Start Stop Indicator Does Not Illuminate Or Remains On

Detecting condition: 

• Defective combination meter
• CAN communication is abnormal between TCM and the combination meter.
• Defective cockpit control module

1. CHECK Auto Start Stop WARNING LIGHT (YELLOW)  .
   1. Turn the ignition switch to OFF.
   2. Check that the Auto Start Stop warning light (yellow) illuminates when the ignition switch is turned to ON. Ref. to AUTO START STOP (DIAGNOSTICS)>AUTO START STOP INDICATOR>CONDITION CHECK .

   Does the Auto Start Stop warning light (yellow) illuminate?

   Yes:  Go to  2 .

   No:  Check the combination meter. Ref. to COMBINATION METER (DIAGNOSTICS)>ACTIVE TEST .

2. CHECK Auto Start Stop WARNING LIGHT (YELLOW)  .
   1. Start the engine.
   2. Check that the Auto Start Stop warning light (yellow) goes off. Ref. to AUTO START STOP (DIAGNOSTICS)>AUTO START STOP INDICATOR>CONDITION CHECK .

   Does the Auto Start Stop warning light (yellow) go off?

   Yes:  Go to  4 .

   No:  Go to  3 .

3. CHECK DTC  .
   1. Turn the ignition switch to OFF.
   2. Start the engine.
   3. Read the DTC of [Auto Start Stop] using the Subaru Select Monitor. Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

   Is DTC displayed?

   Yes:  Perform the diagnosis according to the DTC. Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)>LIST .

   No:  Check the combination meter. Ref. to COMBINATION METER (DIAGNOSTICS)>ACTIVE TEST .

4. CHECK Auto Start Stop OFF INDICATOR  .
   1. Operate the Auto Start Stop cancel switch (center information display) to ON/OFF with engine idling.
   2. Check that the Auto Start Stop OFF indicator illuminates and goes off in turn every time the Auto Start Stop cancel switch (center information display) is turned to ON/OFF.

   Does the Auto Start Stop OFF indicator illuminate and go off?

   Yes:  Go to  5 .

   No:  Go to  6 .

5. CHECK Auto Start Stop INDICATOR (GREEN).
   1. Turn off the Auto Start Stop OFF indicator by operating the Auto Start Stop cancel switch (center information display).
   2. Start the engine.
   3. Perform the active test using Subaru Select Monitor to activate the Auto Start Stop. Ref. to AUTO START STOP (DIAGNOSTICS)>ACTIVE TEST .

   Is the Auto Start Stop indicator (green) lit?

   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:  Check the combination meter. Ref. to COMBINATION METER (DIAGNOSTICS)>ACTIVE TEST .

6. CHECK Auto Start Stop DEACTIVATION INDICATOR  .
   1. Turn off the Auto Start Stop OFF indicator by operating the Auto Start Stop cancel switch (center information display).
   2. Start the engine.

   Is the Auto Start Stop deactivation indicator lit?

   Yes:  Go to  7 .

   No:  Check the combination meter. Ref. to COMBINATION METER (DIAGNOSTICS)>ACTIVE TEST .

7. CHECK Auto Start Stop DEACTIVATION INDICATOR  .

   Start to move the vehicle.

   Does the Auto Start Stop deactivation indicator go off?

   Yes:  Go to  8 .

   No:  Check the combination meter. Ref. to COMBINATION METER (DIAGNOSTICS)>ACTIVE TEST .

8. CHECK Auto Start Stop CANCEL SWITCH (CENTER INFORMATION DISPLAY)  .
   1. Turn the ignition switch to OFF.
   2. Start the engine.
   3. Using the Subaru Select Monitor, read the data of [Auto Start Stop OFF Switch] when the Auto Start Stop cancel switch (center information display) is operated to ON/OFF. Ref. to AUTO START STOP (DIAGNOSTICS)>DATA MONITOR .

   Does the display of [Auto Start Stop OFF Switch] change?

   Yes:  Go to  10 .

   No:  Go to  9 .

9. CHECK Auto Start Stop CANCEL SWITCH (CENTER INFORMATION DISPLAY)  .

   Check the Auto Start Stop cancel switch (center information display). Ref. to COCKPIT CONTROL (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE .

   Is the check result OK?

   Yes:  Go to  10 .

   No:  Replace the cockpit control module. Ref. to ENTERTAINMENT AND MONITORING>COCKPIT DISPLAY .

10. CHECK COMBINATION METER  .

    Check the combination meter. Ref. to COMBINATION METER (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE .

    Is the check result OK?

    Yes:  Go to  11 .

    No:  Replace the combination meter. Ref. to INSTRUMENTATION/DRIVER INFO>COMBINATION METER .

11. CHECK DTC  .

    Using the Subaru Select Monitor, read all DTCs. Ref. to COMMON (DIAG)>DIAGNOSTIC TROUBLE CODE (DTC) .

    Is U-code displayed?

    Yes:  Perform the diagnosis according to the DTC. Ref. to LAN SYSTEM (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)>LIST .

    No:  Replace the combination meter. Ref. to INSTRUMENTATION/DRIVER INFO>COMBINATION METER .