Subaru Crosstrek Service Manual: Dtc p0604 internal control module random access memory (ram) error

Subaru Crosstrek Service Manual / Continuously variable transmission (diagnostics) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc p0604 internal control module random access memory (ram) error

CONTINUOUSLY VARIABLE TRANSMISSION (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)

DTC P0604 INTERNAL CONTROL MODULE RANDOM ACCESS MEMORY (RAM) ERROR

DTC DETECTING CONDITION:

Detected when two consecutive driving cycles with fault occur.

TROUBLE SYMPTOM:

TCM RAM malfunction

STEP	CHECK	YES	NO

1.CHECK DTC.

1) Perform the Clear Memory Mode using the Subaru Select Monitor. Clear Memory Mode">

2) Read the DTC.

Is DTC P0604 displayed?

Replace the TCM. Transmission Control Module (TCM)">

Current condition is normal. Check for interference from noise, etc.

1. OUTLINE OF DIAGNOSIS

• Detect the malfunction in RAM area of the TCM.

• Judge as NG if an attempt to write to RAM area failed.

2. EXECUTION CONDITION

Secondary Parameters	Execution condition
12 V battery system voltage	≥ 10 V

3. DIAGNOSTIC METHOD

If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.

Judgment Value

Malfunction Criteria	Threshold Value
Writing-check (RAM) NOTE:

Malfunction Criteria

Threshold Value

Writing-check (RAM)

NOTE:

This check is carried out about the RAM only used for CAN communication.

Error

Time Needed for Diagnosis: Immediately

Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.

Dtc p0500 vehicle speed sensor "a" circuit

CONTINUOUSLY VARIABLE TRANSMISSION (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC P0500 VEHICLE SPEED SENSOR "A" CIRCUITDTC DETECTING CONDITION:Immediately at ...

Dtc p062f internal control module eeprom error

CONTINUOUSLY VARIABLE TRANSMISSION (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC P062F INTERNAL CONTROL MODULE EEPROM ERRORDTC DETECTING CONDITION:Detected when two con ...

Other materials:

Installation
AIRBAG SYSTEM > Roll ConnectorINSTALLATIONCAUTION:If the steering wheel and steering angle sensor (steering roll connector) are removed, be sure to perform the following operations.• Align the center position of the steering roll connector.• Perform the neutral position setting of the ...

Dtc u0423 invalid data received from instrument panel cluster control module
EyeSight (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC U0423 INVALID DATA RECEIVED FROM INSTRUMENT PANEL CLUSTER CONTROL MODULEFailure counter diagnosis of combination meterNOTE:Perform the diagnosis for LAN system. Basic Diagnostic Procedure > PROCEDURE"> ...

Defrosting
Type A and B Select the " " or " " mode by turning the airflow mode selection dial to defrost or dehumidify the windshield and front door windows. Type C Select the " " mode by pressing the defroster button, or select the " " mode by turning the airflow mode selec ...