| No. | Name
        
       
       
        
         Location | Illus. | 
     
      |  | Components |  | 
     
      | 2 | Generator,
       
       
        on the front long side of the engine (right) |   | 
     
      | 44 | Pressure switch, engine oil,
       
       
        by the front edge of the oil filter |   | 
     
      | 102 | Fuel pump relay
       
       
        below the right A-pillar |   | 
     
      | 202 | Coolant temperature sensor,
       
       
        on the engine's top right front corner |   | 
     
      | 205 | Mass air flow sensor,
       
       
        at right-hand MacPherson strut tower |   | 
     
      | 229 | Main relay, engine control system
       
       
        in the main fuse box in front of battery |   | 
     
      | 243 | Engine oil level switch
       
       
        at the bottom of front edge of the oil pan |   | 
     
      | 271 | Heated oxygen sensor element,
       
       
        integrated in the oxygen sensor |   | 
     
      | 345 | Crankshaft position sensor,
       
       
        above the starter motor |   | 
     
      | 407 | Intake air temperature sensor,
       
       
        integrated in the intake air sensor 688 on the charge air pipe |   | 
     
      | 431 | Pressure sensor, intake manifold
       
       
        next to the throttle body motor |   | 
     
      | 443 | Heated oxygen sensor relay
       
       
        in the main fuse box in front of battery |   | 
     
      | 589 | Trionic engine control module, 4-cyl petrol,
       
       
        on front of engine | A
        
       
       
        
         B | 
     
      | 592 | Front heated oxygen sensor,
       
       
        
         component:
        
        before the catalytic converter
       
       
        
         connector:
        
        blue connector on the console between the power steering pump and the vacuum pump |   | 
     
      | 593 | Rear heated oxygen sensor,
       
       
        
         component:
        
        after the catalytic converter
       
       
        
         connector:
        
        brown connector on the bracket between the power steering pump and the vacuum pump |   | 
     
      | 603 | Pressure sensor, charge air,
       
       
        integrated in the intake air sensor 688 on the charge air pipe |   | 
     
      | 620 | Pressure sensor, A/C,
       
       
        on the air filter's top left front corner |   | 
     
      | 688 | Intake air sensor,
       
       
        on the charge air pipe |   | 
     
      | 727 | Main fuse box , petrol engine,
        
       
       
        in front of battery | 2
        
       
       
        
         4 | 
     
      | 739 | Power steering fluid pressure sensor,
       
       
        on the top of the servo pump |   | 
     
      |  | Crimp connections |  | 
     
      | J31 | Approx. 20 mm from branching point engine control module's switch B towards its switch A |   | 
     
      | J32 | Approx. 70 mm from branching point engine control module's switch B towards its switch A |   | 
     
      | J37 | Approx. 260 mm from branching of crankshaft sensor towards the engine control module |   | 
     
      | J40 | Approx. 190 mm from branching point crankshaft sensor towards the engine control module |   | 
     
      | J45 | Approx. 250 mm from branching point connector H24-2 towards the engine control module |   | 
     
      | J46 | Approx. 130 mm from connector H24-2 |   | 
     
      | J48 | Approx. 80 mm from branching point ignition coil with integrated power amplifier for cylinder 4 towards the engine control module |   | 
     
      |  | Grounding points |  | 
     
      | G7 | on the engine control module's top right attachment lug |   | 
     
      | G34S | On the floor below the left A-pillar |   |