Check Shift Indicator

Diagnosis: 

• CAN communication is abnormal with the combination meter.
• Combination meter malfunction

Trouble symptom: 

• Shift indicator does not display or remains displayed.
• Shift indicator display does not change.

1. CHECK DTC  .

   Read the DTC using Subaru Select Monitor. Ref. to TRANSMISSION (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

   Is DTC U0155 or U0423 displayed?

   Yes  : Perform the self-diagnosis of combination meter.

   No  : Go to  2 .

2. CHECK DTC  .

   Read the DTC using Subaru Select Monitor. Ref. to TRANSMISSION (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

   Are DTCs other than U0155 and U0423 displayed?

   Yes  : Perform the diagnosis according to the DTC. Ref. to TRANSMISSION (DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST .

   No  : Go to  3 .

3. CHECK COMBINATION METER  .

   Read the DTC of [Combination Meter] using the Subaru Select Monitor. Ref. to COMBINATION METER (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

   Are any DTCs displayed?

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

   No  : Go to  4 .

4. CHECK TCM  .
   1. Operate the + side of the paddle shift switch.
   2. Read the data of [Up Switch] using Subaru Select Monitor. Ref. to TRANSMISSION (DIAGNOSTICS)>DATA MONITOR .

   Does it change between ON and OFF according to the operation?

   Yes  : Go to  5 .

   No  : Check for poor contact between TCM and paddle shift UP switch, and repair the defective part.

5. CHECK TCM  .
   1. Operate the - side of the paddle shift switch.
   2. Read the data of [Down Switch] using Subaru Select Monitor. Ref. to TRANSMISSION (DIAGNOSTICS)>DATA MONITOR .

   Does it change between ON and OFF according to the operation?

   Yes  : Go to  6 .

   No  : Check for poor contact between TCM and paddle shift down switch, and repair the defective part.

6. CHECK TCM  .
   1. Turn the ignition switch OFF, then turn it ON again.
   2. Shift the select lever to manual mode.
   3. Read the data of [Shift step in Manu. mode] using Subaru Select Monitor. Ref. to TRANSMISSION (DIAGNOSTICS)>DATA MONITOR .

   Is "1" displayed?

   Yes  : Go to  7 .

   No  : Perform the diagnosis according to DTC P0951. Ref. to TRANSMISSION (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC P0951: AUTO SHIFT MANUAL CONTROL CIRCUIT RANGE/PERFORMANCE .

7. CHECK TCM  .
   1. Shift up the select lever.
   2. Read the data of [Shift step in Manu. mode] using Subaru Select Monitor. Ref. to TRANSMISSION (DIAGNOSTICS)>DATA MONITOR .

   Is "2" displayed?

   Yes  : Current condition is normal.

   No  : Replace the TCM. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>TRANSMISSION CONTROL MODULE (TCM) .