LEMON Manuals: Even more car manuals for everyone
Home >> Subaru >> 2016 >> Crosstrek Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 31 (Hybrid Electric Vehicle System (Diagnostics) (Hybrid)) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0604: Internal Control Module Random Access Memory (Ram) Error >> Battery Energy Control System >> Trouble Symptom

Battery Energy Control System: Trouble Symptom

WARNING: This page is about a different car, the 2015 Subaru XV Crosstrek. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Before performing diagnosis, refer to "CAUTION" in "General Description". < Ref. to CAUTION , General Description.>
Step Check Yes No
1 CHECK BECM. 
  1. Perform the Clear Memory Mode. < Ref. to BATTERY ENERGY CONTROL SYSTEM , OPERATION, Clear Memory Mode.>
  2. Turn the ignition switch to OFF → ON.
  3. Read the DTC again. < Ref. to BATTERY ENERGY CONTROL SYSTEM , OPERATION, Read Diagnostic Trouble Code (DTC).>
Is the same DTC detected? (current malfunction) Replace the high voltage battery. < Ref. to HIGH VOLTAGE BATTERY .> Even if DTC is detected, 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.