Lexus IS300 / ASE30L, ASE30R / 8AR-FTS / EM30H6E; Lexus IS350 / GSE31L, GSE31R / 2GR-FKS, 2GR-FSE / EM30H6E; These manuals are used in the inspection and repair of electrical circuits. The separate wiring manual for each model contains circuit diagrams of each electrical system, wiring route diagrams and diagrams showing the location of relays.. ENGINE CONTROL MODULE D B E 4 E 6, B-W BATTERY N, J 2 J 1 A B JUNCTION CONNECTOR RL 51 32 MPX2 20 IA3 1 2 I 2 IGNITION COIL NO. 1 I 3 IGNITION COIL NO. 2 11 I 4 IGNITION COIL NO. 3 1 N 1 NOISE FILTER (Ignition) EA Front side of the intake manifold To Engine Control Module <2-11><2-12> 3765 4 12 10 9 B-R G B B-W B-W B-W B-W B-W.
Lexus IS300 / GSE22 / 3GR-FE / EM015BE; Lexus IS350 / GSE21 / 2GR-FSE / EM015BE; These manuals are used in the inspection and repair of electrical circuits. The separate wiring manual for each model contains circuit diagrams of each electrical system, wiring route diagrams and diagrams showing the location of relays, etc. Contents:. Decoding the IS300 ECU Wiring. Understanding the intricate web of connections in your vehicle's electronic control system is essential for any enthusiast looking to modify or repair their car. This section aims to demystify the complex wiring diagram by breaking down the various connections and their functions.