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Electrical part list

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The XM has almost a thousand electrical parts. It's not always easy to find where a specific item is located.

The factory manual and the circuit diagrams denote every part with a reference number. The listing below uses these numbers. Left and right, as usual, refers to the driving position.

Non-obvious parts in the XM

53 Water temperature control unit - Remove the glovebox. The unit is housed in a black Bitron box attached to the firewall side of the opening.

59 Preheater control unit - Attached to the battery box.

60 Cruise control control unit - Attached to the main ECU box, located on the right hand front of the engine bay.

71 L.H. front heated seat regulator control unit - Attached to the underside of the L.H. seat frame.

72 R.H. front heated seat regulator control unit - Attached to the underside of the R.H. seat frame.

73 L.H. rear heated seat regulator control unit - Remove the L.H. side seat side bolster. The unit is located there.

74 R.H. rear heated seat regulator control unit - Remove the R.H. side seat side bolster. The unit is located there.

130 Lights-on audible warning - Remove the lower shroud under the steering column to gain access to the mainboard. This unit is located on the top end of the board, it's the first one in the row.

141 Aircon ECU - In the middle of the dashboard, above the center console. Remove the control panel to find it behind that.

143 Suspension ECU - In the main ECU box, located on the right hand front of the engine bay.

159 Steering wheel sensor - Remove the steering column shroud. The unit is located to the steering column under the steering wheel.

170 Flasher unit - Remove the lower shroud under the steering column to gain access to the mainboard. This relay is located on the top end of the board, it's the second one in the row.

182-184 Heater or aircon control panel - In the middle of the dashboard, above the center console.

582 Air conditioning switch - In the middle of the dashboard, above the center console.

700 Air mixing motor - Remove the lower shroud under the steering column. The servo unit is bolted to the side of the heater unit but access is blocked by some connectors you have to remove first.

710 Air distribution motor - Remove the glovebox. The servo unit is bolted to the side of the heater unit, between a large duct and the unit wall.

711 Air recycling motor - Remove the glovebox. The servo unit is located on the firewall, behind a larger black Bitron box (item 53).

742 Front centre interior lamp - In the ceiling at the front.

743 Rear centre interior lamp

775 Pressostat - 4M

805 Refrigeration compressor cut-off relay

806 Front fog lamps relay - Remove the lower shroud under the steering column to gain access to the mainboard. This relay is located on the bottom end of the board, it's the third one of the first row.

809 Front window relay - Remove the lower shroud under the steering column to gain access to the mainboard. This relay is located on the bottom end of the board, it's the first one of the first row.

817 Front heated seats relay - Remove the lower shroud under the steering column to gain access to the mainboard. This relay is located on the bottom end of the board, it's the first one of the third row.

820 Heated rear screen relay - Remove the lower shroud under the steering column to gain access to the mainboard. This relay is located on the bottom end of the board, it's the first one of the second row.

821 Air conditioning additional relay - Remove the glovebox. The relay with a green connector is located on the right side, fixed to the top of a chassis panel.

822 Refrigeration compressor cut-off relay by injection - Remove the glovebox. The relay is plugged into a yellow socket on the right side, below a chassis panel. (?)

824 Rear heated seats and sunroof relay - Remove the lower shroud under the steering column to gain access to the mainboard. This relay is located on the bottom end of the board, it's the second one of the third row.

848 Engine running information relay - Remove the lower shroud under the steering column to gain access to the mainboard. This relay is located on the bottom end of the board, it's the second one of the second row.

874 Sunroof supply relay - Remove the lower shroud under the steering column to gain access to the mainboard. This relay is located on the bottom end of the board, it's the second one of the first row.

880 Lighting rheostat - Housed in the lower shround under the steering column.

908 Air conditioning duct temperature sensor - 2N, wire R

913 Interior air temperature sensor - Remove the front ceiling light unit lens. The sensor (built into a small ventilator) is attached vertically to the inside of the panel.

962 Windscreen wiper timer - Remove the lower shroud under the steering column to gain access to the mainboard. This unit is located on the bottom end of the board, it's the third one of the second row.

963 Rear screen wiper timer - Remove the lower shroud under the steering column to gain access to the mainboard. This unit is located on the top end of the board, it's the third one in the row.

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