DTC P1608: Internal Control Module Monitoring Function Self Test

DTC detecting condition:  Immediately at fault recognition

Trouble symptom:  Improper gear shifting

1. CHECK DTC  .
   1. Using the Subaru Select Monitor, perform the clear memory of [Transmission]. Ref. to COMMON (DIAGNOSTICS)>CLEAR MEMORY .
   2. Read the DTC of [Transmission] using the Subaru Select Monitor. Ref. to TRANSMISSION (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

   Is DTC P1608 displayed?

   Yes:  Replace the TCM. Ref. to AUTOMATIC TRANSMISSION>TRANSMISSION CONTROL MODULE (TCM) .

   No:  Current condition is normal. Check for interference from noise, etc.