TDI engine control unit, exhaust gas recirculation and boost limitation
J52 - glow plug relay;
J248 - engine control unit 1.9 "TDI";
J359 - relay 1 glow plugs for heating the coolant;
J360 - relay 2 glow plugs for heating the coolant;
N18 - solenoid valve for exhaust gas recirculation;
N75 - solenoid valve for limiting boost pressure;
Q6 - glow plugs;
Q7 - glow plugs for heating the coolant;
T2e - 2-pin plug connector, in the cable duct on the left (black);
T2f - 2-pin connector, on the EGR solenoid valve;
T2g - two-pin plug connector, on the solenoid valve for boost pressure limitation;
T10a - 10-pin male connector, in waterproof housing (white);
T52a - 52-pin connector, on engine control unit 1.9 "TDI";
10 - connection point on "mass" in a waterproof casing;
156 - connection on "mass" in the wiring harness for the engine;
D78 - connection with positive pole (30a) in the wiring harness for the engine;
D102 - positive connection (87a) in the wiring harness for the engine;
F32 - connection in the wiring harness for the engine;
* - only for cars with special equipment
The structure of circuit diagrams of electrical equipment is located here →
Symbols found in circuit diagrams are here →
Explanations for the symbols found in the wiring diagrams are here →