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Home >> Subaru >> 2016 >> WRX Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 16 (Continuously Variable Transaxle (CVT) (Diagnostics)) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0604 Internal Control Module Random Access Memory (Ram) Error >> Trouble Symptom

DTC P0604 Internal Control Module Random Access Memory (Ram) Error: Trouble Symptom

WARNING: This page is about a different variant/trim than selected.

TCM RAM malfunction

DIAGNOSTIC PROCEDURE

Step Check Yes No
1 CHECK DTC. 
  1. Perform the Clear Memory Mode using the Subaru Select Monitor. < Ref. to CLEAR MEMORY MODE . >
  2. Read the DTC.
 Is DTC P0604 displayed? Replace the TCM. < Ref. to TRANSMISSION CONTROL MODULE (TCM) . > Current condition is normal. Check for interference from noise, etc.
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