Leon Mk1
| Electrical/electronic components and fitting locations |
| 1 - | ABS hydraulic unit -N55- |
| q | Location: on left in engine compartment. |
| q | In the hydraulic unit, the ABS hydraulic pump -V64- and the intake/exhaust valves are checked via self-diagnosis |
| q | ABS hydraulic pump -V64- and valve block must not be separated from one another. |
| q | Removing and installing → Chapter. |
| 2 - | Control unit for ABS with EDL -J104- |
| q | Location: on hydraulic unit on left of engine compartment, testing is carried out via self-diagnosis |
| q | Do not disconnect multi-pin connector before self-diagnosis has been completed. Switch ignition off before separating connector. |
| q | Removing and installing → Chapter. |
| 3 - | Hydraulic unit for ABS with EDL -N55- |
| q | Location: on left in engine compartment. |
| q | In the hydraulic unit, the ABS hydraulic pump -V64- and the intake/exhaust valves are checked via self-diagnosis |
| q | ABS hydraulic pump -V64- and valve block must not be separated from one another. |
| q | Removing and installing → Chapter. |
| 4 - | Control unit for ABS with EDL -J104- |
| q | Location: on hydraulic unit on left of engine compartment, testing is carried out via self-diagnosis |
| q | Do not disconnect multi-pin connector before self-diagnosis has been completed. Switch ignition off before separating connector. |
| q | Removing and installing → Chapter. |
| 5 - | Brake light switch -F- |
| q | The brake light switch is open in the rest position |
| q | Adjusting brake light switch → Chapter. |
| q | Allocation → Electronic Parts Catalogue (ETKA). |
| 6 - | Diagnostic connection |
| q | Location: Under centre console. |
| 7 - | Dual circuit brake/handbrake warning lamp -K7- |
| q | Location: in dash panel insert. |
| 8 - | ABS warning lamp -K47- |
| q | Location: in dash panel insert. |
| 9 - | Speed sensor rotor |
| q | Front right and left rotor and speed sensor are common parts |
| q | Removing and installing → Running gear, axles, steering; Front and four-wheel drive; Rep. Gr.40 |
| 10 - | Rear right speed sensor -G44- / rear left speed sensor -G46- |
| q | Removing and installing → Chapter. |
| 11 - | Speed sensor rotor |
| q | Rotor and speed sender for rear left and right-hand sides are common parts. |
| q | Removing and installing → Running gear, axles, steering; Front and four-wheel drive; Rep. Gr.42 |
| 12 - | Front right speed sensor -G45- / front left speed sensor -G47- |
| q | Removing and installing → Chapter. |
