DescriptionThe car is equipped with numerous self-diagnostic electronic control units. When a tester (Examiner or other instrument) is connected to the control units, self-diagnostic data can be read (parameters, errors) or active testing can be carried out. All tester lines are connected to the EOBD (European On Board Diagnosis) connector in line with EC directive 98/69 - ISO standard J1962, centralised on the Body Computer - connector C of M1.The same connector carries out diagnostics on the nodes (control units) connected to the low transmission speed B-CAN network, while the high transmission speed C-CAN network dynamic power control network is diagnosed via a specific K line.The following are controlled via the B-CAN network:underdashboard control unit;instrument panel;door control units;radio controls on the steering wheel;radio assembly;climate control system control unit;Air Bag control unit;parking sensors control unit; For more details 2401120SeeE1050CAN CONNECTION LINESThe following are controlled directly via the individual K diagnostic lines:engine management unitABS control unit;electric steering control unit.
Functional description The centralised EOBD tester connector is built into Body Computer M1 connector C. it is supplied directly at pin 16 from a line protected by fuse F39 of underfacia control unit B2; Pins 4 and 5 are earthed. Pin 1 is connected to the ABS control unit 2399383SeeE7020ABS Pin 7 is connected to the engine management control unit M102399341SeeE5030PETROL ENGINE ELECTRONIC MANAGEMENT via a K line or 2399345SeeE5050DIESEL ENGINES ELECTRONIC MANAGEMENT . Pin 9 is connected to the power steering control unit M86 (pin 4 of connector B) SeeE7045 ELECTRIC STEERING . Pins 6 and 14 are connected to the B-CAN network: the junction unit under the dashboard B2, the instrument panel E50, the driver's side door control unit M66, the passenger side door control unit M67, the luggage compartment M63, the radio P20 and the controls on the steering wheel D47, the climate control system ECU M70, the Air Bag control unit M60 and the parking sensor control unit M84 are monitored and 'diagnosed' via this network SeeE1050 CAN CONNECTION LINES .
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Open the bonnet lid.1. Release the retainers (1a) and remove the cover (1b).2050746
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400802-7040A37fuse box cover - r r1. Disconnect the electrical connections (1a, 1b, 1c, 1d, 1e, 1f).2. Undo the bracket retaining bolt.3. Slightly move the bracket (3a) for the dashboard trim and undothe bolt (3b).4. Undo the other bolts securing the body computer/junction unit.5. Slightly move the body computer/junction unit assembly.6. Disconnect the electrical connections (6a, 6b, 6c).7. Recover the body computer/junction unit.2050752
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Disconnect electronic control unit electrical connections (1a),(1b), (1c).2. Undo the bolts.3. Recover the control unit.2050753
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Disconnect electronic control unit electrical connections (1a),(1b), (1c).2. Undo the bolts.3. Recover the control unit.2050754
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the negative battery terminal (-). Proceed with removal 2400123-1048A32sleeve from air cleanerto intake manifold - r + r1. Disconnect the electrical connection from the throtle body integratedwith the M.D.S.2. Undo the bolts (2a) and move the mounting bracket (2b) aside,complete with injection-ignition system control unit (2c). 3. Undo the remaining bolt (3a) and remove throttle body with integralMDS (3b) 2049708
1056B50
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the negative battery terminal (-). Proceed with removal 2400123-1048A32sleeve from air cleanerto intake manifold - r + r1. Disconnect the electrical connection from the engine coolanttemperature sensor.2. Undo and remove the engine coolant temperature sensor.2049709
1056B51
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the negative battery terminal (-). Proceed with removal 2400120-1048A10air cleaner filtering element- replace1. Disconnect the electrical connection from the cam angle sensor. 2. Undo the bolt (2a) and remove the cam angle sensor (2b). 2049710
1056B54
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the negative battery terminal (-). 1. Disconnect the electrical connection from the intake air temperature/pressuresensor.2. Undo the bolts (2a) and remove the intake air temperature/pressuresensor (2b).2049711
1056B60
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the negative battery terminal (-). Proceed with removal 2400120-1048A10air cleaner filtering element- replace1. Undo the fuel manifold pipe protective plug (1a) and use tool(1b) to drain fuel system pressure. 23Recover the fuel which comes outin a suitable container. 2. Disconnect the rapid attachment for the fuel supply pipe fromthe fuel manifold pipe.3. Disconnect the electrical connections from the injectors.Release the injector electrical wiringfrom the fixings and move it aside. 2049712
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Remove the safety clip.2. Remove the injector.2049714
1056B78
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the negative battery terminal (-). 1. Disconnect the electrical connection from the switch on the clutchpedal. 2. Rotate and remove the switch on the clutch pedal.2049715
1056B82
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the negative battery terminal (-). 1. Disconnect the electrical connections (1a) and (1b) from theinjection/ignition system control unit. 2. Undo nut (2a) and disconnect earth lead (2b) from the injection-ignitionsystem control unit. 3. Undo the remaining nuts (3a) and remove injection/ignition controlunit (3b) from the bracket. 2049716
1056B87
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the negative battery terminal (-). Proceed with removal 2400134-1056B82injection/ignition systeme.c.u. (one) - r + r1. Undo the bolts (1a) and remove the injection/ignition controlunit mounting (1b).2049717
1056B90
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Position the vehicle on the ramp Proceed with removal 2400577-5530B10battery - r+r Proceed with removal 2400580-5530B52Battery DRIP TRAY/SUPPORT- R.R. Proceed with removal 2400120-1048A10air cleaner filtering element- replace1. Loosen the band and disconnect the engine oil vapour intake pipeand the side of the sleeve from the air cleaner to the intake manifold2. Loosen the band, disconnect the hose from the air filter to theintake manifold, intake manifold side and remove it.2049718
pressure pump electric control
1060G10
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the negative battery terminal (-). 1. Disconnect the electrical connection from the air flow meter. 2. Loosen the band and disconnect the the turbocharger air inletsleeve from the rigid pipe, air flow meter side.3. Undo the bolts (3a) and remove the air flow meter (3b).2050095
1060G14
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Position the vehicle on the ramp Proceed with removal 1. Loosen the band and disconnect the lower radiator coolant outlethose from the radiator, radiator side.23Collect the engine coolant ina suitable container.2050096
1060G16
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the negative battery terminal (-). 1. Disconnect the electrical connection from the air flow meter. 2. Loosen the band and disconnect the the turbocharger air inletsleeve from the rigid pipe, air flow meter side.2050099
1060G20
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the negative battery terminal (-). 1. Disconnect the electrical connection for the rpm sensor.2. Undo the bolt (2a) and remove the engine rpm sensor (2b). 2050102
1060G22
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Position the vehicle on the rampEnsure that the ignition key is in theOFF position, then disconnect the negative battery terminal (-). 1. Disconnect the electrical connection from the air flow meter. 2. Loosen the band and disconnect the the turbocharger air inletsleeve from the rigid pipe, air flow meter side.2050104
1060G28
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the negative battery terminal (-). 1. Disconnect the electrical connection from the air flow meter. 2. Loosen the band and disconnect the the turbocharger air inletsleeve from the rigid pipe, air flow meter side.2050107
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Ensure that the ignition key is in theOFF position, then disconnect the negative battery terminal (-). 1. Disconnect the electrical connection from the air flow meter. 2. Loosen the band and disconnect the the turbocharger air inletsleeve from the rigid pipe, air flow meter side.2050115
1060G90
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Position the vehicle on the ramp Proceed with removal 2400577-5530B10battery - r+r Proceed with removal 2400580-5530B52Battery DRIP TRAY/SUPPORT- R.R.1. Disconnect the electrical connection from the air flow meter. 2. Loosen the band and disconnect the the turbocharger air inletsleeve from the rigid pipe, air flow meter side.2050119
abs check/adjustment devices
3340A12
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21 Proceed with removal 2400577-5530B10battery - r+r1. Remove the protective cap on the brake caliper bleed valve. 2. Connect the collection system (pipe and reservoir) to the bleedvalve on the brake caliper. 3. Loosen the bleed valve on the brake caliperWait for the brake-clutch reservoir todrain.2050481
3340A13
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21 Proceed with removal 2400577-5530B10battery - r+r Proceed with removal 2400367-3340A12A'B.S. system. - electronicand hydraulic CONTROL UNIT R.R.1. Release the right brake pipe from the band on the A.B.S. controlunit mounting.2. Undo the nuts (2a) and the bolt (2b) and remove the A.B.S. controlunit mounting (2c).2050485
3340A20
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting2123-. For versions with ESP, theA.B.S. electronic control unit is handled individually by the Parts Department,but supplied together with the hydraulic control unit. Proceed with removal 2400577-5530B10battery - r+r Proceed with removal 2400367-3340A12A'B.S. system. - electronicand hydraulic CONTROL UNIT R.R.1. Undo the bolts (1a) and separate ABS electronic control unt (1b)from the hydraulic assembly.2050486
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21.23The following procedure describesremoval/refitting of the left rear wheel rpm sensor; proceed asfor the right rear wheel rpm sensor.Position the vehicle on the rampEnsure that the ignition key is in theOFF position, then disconnect the negative battery terminal (-). 1. Undo the bolt (1a) and remove the rear wheel rpm sensor (1b).2. Release the rear wheel rpm sensor electrical wiring from theattachments on the rear suspension.2050491
