SCC Trip Computer

��7SCC Trip Computer:

WIRING DIAGRAM

SCC Trip Computer: Component Location:

COMPONENT LOCATION VIEW

SCC Trip Computer: Component ID:

COMPONENT ID
16 Rheostat, lighting for instruments and controls, on dashboard between the steering wheel and driver's door.
22a Fuse board behind the access panel in the glove box.
45 Engine coolant temperature sensor, on the left-hand side of the thermostat housing.
46 Fuel level sensor in fuel tank under the luggage compartment floor.

In The Main Instrument Display Panel
47a Fuel gauge.
47b Fuel level indicator lamp.
47c Coolant temperature gauge.
81 2-speed radiator fan relay, in main fuse box in front of battery.
132 Vehicle speed sensor, in the speedometer.
155 Relay, A/C radiator fan, in main fuse box in front of the battery.
159 Distribution terminal (+15 circuit), in main fuse box behind the glove box.
166 3-stage pressure switch for the radiator fan, on the receiver in front of the right-hand wheel housing.
169 A/C switch, on the dashboard between the centre console and steering wheel.
210 EDU trip computer in the main instrument display panel.
216 ACC control module in the middle of the dashboard.
230 Distribution terminal (+30 circuit) in main fuse box behind the glove box.
241 SCC trip computer in the centre of the dashboard.
242 Coolant level switch in the coolant expansion tank.
245 EDU transmission range switch (automatic transmission) beside the selector lever.
286 Outside temperature sensor, on the left-hand side behind the front spoiler.
430 Saab Trionic control module, in the engine bay on the left behind the bulkhead partition.
445 (H16-1) Diagnostics test socket, below the steering wheel.
510 Motronic M2.8.1 control module, in the engine bay behind the bulkhead partition.
587 Motronic M5.2 control module, on a bracket under the dashboard.
589 Saab Trionic OBDII control module, in the engine bay on the left behind the bulkhead partition.

2-Pin Connector
H2-1 Beside the coolant expansion tank.

3-Pin Connector
H3-20 Behind the main instrument display panel beside the speedometer (ME).

4-Pin Connector
H4-4 Beside the fuel pump under the luggage compartment floor.

10-Pin Connectors
H10-15 Behind the left-hand headlamp.
H10-25 Behind the left-hand headlamp.

24-Pin Connector
H24-2 Behind the left-hand headlamp.

70-Pin Connector
H70-1 In the engine bay, behind the bulkhead partition.

Grounding Points
G8 Grounding point, dashboard, by the left-hand front loudspeaker socket.
G14 Grounding point, left-hand seat member, under the left-hand front seat.
G31 Grounding point, right-hand structural member, behind the right-hand headlamp.

SCC Trip Computer:

DESCRIPTION OF OPERATION
The SCC trip computer (Saab Car Computer) has the following functions:
(left-hand side ^)

^ DIST. TO DEST. (distance to destination).
^ AVER. SPEED (average speed).
^ SPEED WARN. (speed warning).

(right-hand side >)

^ CLOCK (clock function).
^ ARRIVAL (arrival time).
^ ALARM (alarm function).

The trip computer is operated by means of the buttons situated below the display. Presentation in kilometers or miles can also be selected with these buttons.

SCC Trip Computer:

The bottom row on the trip computer includes a light sensor and two buttons. The light sensor is used for automatic control of the brightness of the SCC and EDU trip computer displays in daylight.

The brightness of the button illumination is controlled by rheostat 16 (lighting for instruments and controls) on the dashboard.

SCC trip computer 241 is supplied with current from fuse 19 continuously and also from fuse 13 when the ignition switch is in the Drive position.

R and INFO are used for the EDU trip computer. Together with the light sensor they are connected to EDU trip computer 210 via an 8-Pin Connector.

To process and display the information for the different functions, the trip computer needs data on the speed of the car. This is obtained from vehicle speed sensor 132 via the EDU.

FAULT DIAGNOSIS HINTS
The trip computer is activated by turning the ignition switch to the Drive position.
1. Check that fuses 13 and 19 are intact and supplied with current.
2. Check that current is supplied to pin 1 of the trip computer, via clock 49 and pin 6.
3. Check that current is supplied to terminal 1 of vehicle speed sensor 132 and then from terminal 2 of the vehicle speed sensor to terminal 9 of the EDU trip computer.
4. Check that current is supplied from the EDU to the SCC.
5. Check that the contact surfaces of the connectors are undamaged and clean. This is important as the currents involved are weak.
6. Check the wiring harness and ground connections.