Motronic control unit, speed and knock sensor I and II
G40 – Hall-effect speed sensor;
G61 – Knock Sensor I;
G66 – Knock Sensor II;
J220 - "Motronic" system control unit;
N79 – heating resistor for heating the crankcase ventilation system of the crankshaft (for vehicles with special equipment);
T2j – two-pin plug connector, on a heating resistor for heating the crankcase ventilation system of the crankshaft;
T3i – three-pin plug connector, on the speed sensor;
T3m – three-pin plug connector, on the knock sensor I;
T3n – three-pin plug connector, on knock sensor II;
T28a - 28-pin plug connector on the "Motronic" control unit;
T52a - 52-pin plug connector on the "Motronic" control unit;
10 – ground connection point in waterproof housing;
85 – ground connection in engine wiring harness;
D141 – connection (5V) in the engine wiring harness;
D142 – connection in the engine wiring harness;
* – only for vehicles with manual transmission;
*** – vehicles with special equipment
The structure of the basic diagrams of electrical equipment is located here →
Symbols found in wiring diagrams are here →
Explanations of the symbols found on the electrical diagrams are located here →