LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2018 >> Forester 2.5i, Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (P0171 To P0685) (H4DO) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0606: Control Module Processor >> Diagnostic Method
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Diagnostic Method

Judge as NG when the following conditions are established.

JUDGMENT VALUE SPECIFICATION 1-(A)

Malfunction Criteria Threshold Value
Instruction value Different from expected value
JUDGMENT VALUE SPECIFICATION 1-(B)

Malfunction Criteria Threshold Value
Calculated result from CPU and FPU Different from expected value
JUDGMENT VALUE SPECIFICATION 2

Malfunction Criteria Threshold Value
Process flow result The result and expected value do not match.
JUDGMENT VALUE SPECIFICATION 3

Malfunction Criteria Threshold Value
High integrated IC motor continuity cut demand Yes
JUDGMENT VALUE SPECIFICATION 4

Malfunction Criteria Threshold Value
Communication between output driver ICs Communication failure
JUDGMENT VALUE SPECIFICATION 5

Malfunction Criteria Threshold Value
Writing value to CAN register ? Read out value

Time needed for diagnosis: 

Judgment 1-(a): 2 times

Judgment 1-(b): 512ms

Judgment 2: 504ms

Judgment 3: 48ms

Judgment 4: 2500ms

Judgment 5: Less than 1 second

Malfunction indicator light illumination:  Illuminates as soon as a malfunction occurs.