These typically feature 40-pin, 80-pin, or similar high-density connectors depending on whether they are VVTi or non-VVTi. 4A-GE (MR2/Corolla): Older models like the 89661-17190 use yellow plugs with a 26/16/22-pin layout. How to Find Your Specific Diagram
: Constant +12V power from the battery used to maintain the ECU's memory. toyota 89661 ecu pinout
: Always match the exact part number on your ECU sticker (e.g., 89661-XXXXX) to the pinout diagram. Using a diagram for a similar model but different year can result in permanent damage. g., 89661-3D240)? These typically feature 40-pin
Despite the vast differences between variants, the 89661 family retains a common electrical philosophy. The following circuits are almost always found on the same relative positions or same color wires across the series. toyota 89661 ecu pinout