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Home >> Subaru >> 1991 >> Justy Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Tests W/Codes - PFI >> Diagnostic Code Chart >> Basic Operation Of Self-Diagnostic System >> During "TROUBLE" Conditions

During "TROUBLE" Conditions

BASIC OPERATION OF SELF-DIAGNOSTIC SYSTEM - TROUBLE MENU

Engine/Connector Conditions Mode "CHECK ENGINE" Light Status:
Engine On or Off, Read Memory Connector Disconnected, Test Mode Connector Disconnected U-Check On
Engine Off, Read Memory Connector Connected, Test Mode Connector Disconnected Read Memory Trouble Code (Memory)
Engine On, Read Memory Connector Connected, Test Mode Connector Disconnected Read Memory Trouble Code (U-Check)
Engine Off, Test Mode Connector Connected D-Check (Clear Memory) Vehicle Specs Code Displayed
Engine On, Test Mode Connector Connected D-Check (Clear Memory) (1) Vehicle Specs Code Displayed, Then Trouble Code (D-Check)
(1) After the engine has started, the vehicle specifications code appears on the Self-Diagnostic display 3 times and then goes out. A trouble code will then appear after the required procedure is made in the D-Check mode.
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