LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Porsche >> 1993 >> 911 America, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Fault Code Diagnosis & Testing >> Code 1111: DME Power Supply
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Code 1111: DME Power Supply

  1. Battery Voltage (Keep-Alive Memory) Circuit

    Disconnect DME control unit. Connect Digital Volt-Ohmmeter (DVOM) between terminal No. 24 (ground) and terminal No. 18 (battery voltage). See Figure . DVOM should indicate battery voltage. If battery voltage is not present, check Red wire back to fuse block and battery or Brown ground wire.

  2. Ignition Voltage (DME Relay) Circuit

    Connect DVOM between terminal No. 24 (ground) and terminal No. 37 (ignition voltage). See Figure . Turn ignition on. DVOM should indicate battery voltage. If battery voltage is not present, check Gray/Brown wire back to DME relay or Brown ground wire.
scientia non olet · About LEMON Manuals