Subaru Crosstrek Service Manual: Dtc p0601 internal control module memory checksum error

Subaru Crosstrek Service Manual / Continuously variable transmission (diagnostics) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc p0601 internal control module memory checksum error

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

DTC P0601 INTERNAL CONTROL MODULE MEMORY CHECKSUM ERROR

DTC DETECTING CONDITION:

Detected when two consecutive driving cycles with fault occur.

TROUBLE SYMPTOM:

TCM ROM 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 P0601 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 ROM area of the TCM.

• Judge as NG when the consistency in the ROM area is lost.

2. EXECUTION CONDITION

Secondary Parameters	Execution condition
12 V battery system voltage	≥ 9 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
Checksum (ROM)	Error

Time Needed for Diagnosis: Immediately

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

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