Indicator Warning Lamps II

��6WIndicator And Warning Lamps II:

WIRING DIAGRAM

Indicator And Warning Lamps II: Component Location:

COMPONENT LOCATION VIEW

Indicator And Warning Lamps II: Component ID:

COMPONENT ID
2 Starter motor.
20 Ignition switch, on the right-hand side of the steering column.
42 Brake fluid level warning switch, on the brake fluid reservoir behind the battery.
43 Handbrake switch, under the hand-brake lever.
47 Main instrument display panel.

In The Main Instrument Display Panel
47e Charging indicator lamp.
47f Brake fluid level warning lamp.
47g Main beam indicator lamp.
47j Indicator lamp, electrically heated rear window.
47k SHIFT UP indicator lamp.
47l EXH warning lamp.
47m Indicator lamp, handbrake.
47n Rear fog lights indicator lamp.
47q Warning lamp, ABS.
47r Indicator lamp, washer fluid level.
47u Cruise Control system indicator lamp.
47y TCS CTRL warning lamp.
113 Relay/time-delay relay, electrically heated rear window, in main fuse box behind the glove box.
159 Distribution terminal (+15 circuit), in main fuse box behind the glove box.
161 Switch, rear fog lights, on dashboard between the steering wheel and driver's door.
195 Level switch, in the washer fluid reservoir in the right-hand wheel housing.
213 Pictogram, in the main instrument display panel.
228b Filament monitor, front lamps, in main fuse box in front of the battery.
291 ABS control module on the battery tray.
342a Fuse board in main fuse box in front of battery.
416 Relay, EXH warning, on a bracket behind the front seat member on the right-hand side.
507 TCS V6 control module, under the left-hand front seat.
508 Cruise Control system control module, adjacent to the battery tray.
589 Saab Trionic OBDII control module, in the engine bay on the left behind the bulkhead partition.

2-Pin Connectors
H2-10 Beside the washer fluid reservoir.
H2-19 Under the dashboard to the left of the steering wheel.

4-Pin Connectors
H4-15 To the left under the right-hand seat.
H4-21 Beside the generator (V6).

6-Pin Connector
H6-5 In the front right-hand corner behind the light cluster beside the washer fluid reservoir.

10-Pin Connector
H10-15 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
G2 Grounding point, battery tray, on the left-hand wheel housing.
G8 Grounding point, dashboard, by the left-hand front loudspeaker socket.
G31 Grounding point, right-hand structural member, behind the right-hand headlamp.

DESCRIPTION OF OPERATION
47e Charging Indicator Lamp
The charging indicator lamp indicates to the driver whether the battery is being charged or not.

When ignition switch 20 is in the Drive position, current (+15 circuit) is supplied via fuse 13 to pin 5 of the main instrument display panel and on to one of the poles of indicator lamp 47e. The lamp's other pole is connected to generator 2 via pin 3 in the main instrument display panel.

When the generator is not rotating or if it is not charging for some reason or other, the charging warning lamp circuit will be grounded through the generator and the warning lamp will light up.

When the generator is charging, terminal D+ receives the same voltage as B+. The charging lamp is then supplied with the same voltage on both connections and the lamp goes out.

For a complete description and fault-tracing hints, see the Starting And Charging Systems.

47f Brake Fluid Warning Lamp
The brake warning lamp indicates to the driver when the level in the brake fluid reservoir is too low.

When the ignition switch is in the Drive position, current (+15 circuit) is supplied via fuse 13 and pin 5 of the main instrument display panel to one of the poles of warning lamp 47f. The other pole of the lamp is connected via pin 11 of the main instrument display panel to brake warning lamp switch 42. If the level of brake fluid in the reservoir is too low, the switch closes and the warning lamp lights up.

For cars equipped with ABS, see the Antilock Brake System.

Fault Diagnosis Hints
The brake warning lamp is activated by turning the ignition switch to the Drive position.
1. Check the brake system warning circuit by pressing the button located on the brake fluid reservoir. The float is then grounded and the lamp should light up.
2. Check that fuse 13 is intact and supplied with current.
3. Check that the bulb is OK and that the lamp connections on the card for warning and indicator lamps are supplied with current.
4. Check the connectors, wiring harness and ground connections.

47g Main Beam Indicator Lamp
The indicator lamp shows the driver when the head-lamps are on main beam.

One pole of the indicator lamp is supplied with current from main beam fuse 3 via pin 2 of the main instrument display panel. The other pole of the indicator lamp is grounded via pin 7 of the main instrument display panel.

For a complete description and fault-tracing hints, see Headlamps.

47j Indicator Lamp, Electrically Heated Rear Window
The indicator lamp shows the driver when the electrically heated rear window is switched on.

When it is switched on, one pole of the indicator lamp is supplied with current via pin 10 of the main instrument display panel. The other pole of the lamp is grounded via pin 7 of the main instrument display panel.

For a complete description and fault-tracing hints, see Electrically Heated Rear Window.

47k Indicator Lamp, Upshift (US, Manual Gearbox)
The indicator lamp indicates to the driver that a higher gear should be engaged.

One pole of the indicator lamp is supplied with current via pin 5 of the main instrument display panel. The other pole of the lamp is grounded via pin 14 from pin 55 of Trionic OBDII control module 589.

47l EXH Indicator Lamp
Cars for certain markets are fitted with an EXH indicator lamp which lights up when the catalytic converter becomes too hot.

One pole of the indicator lamp is supplied with current from pin 5 of the EXH relay via pin 14 of the lamp unit. The other pole of the lamp is grounded via pin 7 of the lamp unit.

For a complete description and fault-tracing hints, see EXH Warning.

47m Indicator Lamp, Hand Brake
The handbrake indicator lamp shows the driver when the handbrake is applied.

When ignition switch 20 is in the Drive position, current (+15 circuit) is supplied via fuse 13 to pin 5 of the main instrument display panel and to one pole of indicator lamp 47m. The other pole of the lamp is connected to handbrake switch 43 via pin 13 of the main instrument display panel. The lamp remains on as long as the handbrake is applied.

Fault Diagnosis Hints
The indicator lamp is activated when the ignition switch is turned to the Drive position.
1. Check that fuse 13 is intact and supplied with current.
2. Check that the bulb is OK and that the lamp connections on the card for warning and indicator lamps are supplied with current.
3. Disconnect the handbrake switch cable and connect it to ground. If the lamp lights up, the circuit is OK.
4. Check the connectors, wiring harness and ground connections.

47n Rear Fog Lights Indicator Lamp
Cars for certain markets are fitted with an indicator lamp which shows the driver when the rear fog light is switched on.

One pole of the indicator lamp is then supplied with current from
M1996: rear fog lights switch 161
M1997: rear fog lights relay 246
via pin 6 of the main instrument display panel. The other pole of the lamp is connected to ground via pin 7 of the main instrument display panel.

For a complete description and fault-tracing hints, see Rear Fog Lights.

47q ABS Indicator Lamp
If a fault occurs in the ABS or TCS systems, warning lamp 47q will light up at the same time as the system is disabled. The car's brake system will still remain operative, but only as a conventional system.

One pole of the lamp is supplied with current via pin 5 and grounded via pin 8 of the relevant system.

47r Indicator Lamp, Washer Fluid Level
The washer fluid level indicator lamp shows the driver when the washer fluid is about to run out.

When ignition switch 20 is in the Drive position, current (+15 circuit) is supplied via fuse 13 to pin 5 of the main instrument display panel and on to one pole of indicator lamp 47r.

The other pole of the lamp is connected to level switch 195 via pin 9 of the main instrument display panel. When the level in the reservoir has dropped to 0.5 litres or less, the level switch closes and the lamp lights up.

Fault Diagnosis Hints
The level sensor is activated by the ignition switch being turned to the Drive position.
1. Check that fuse 13 is intact and supplied with current.
2. Check that the bulb is OK and that the lamp connections on the card for warning and indicator lamps are supplied with current.
3. With 0.5 Cubic dm (litres) in the reservoir, the sensor should close and cause the lamp to light up.
4. Check the connectors, wiring harness and ground connections.

47u Cruise Control Indicator Lamp
Cars for certain markets are fitted with an indicator lamp which shows the driver when the Cruise Control system is engaged.

One pole of the indicator lamp is supplied with current via pin 6 of the main instrument display panel.

The other pole of the lamp is connected to ground via pin 7 of the main instrument display panel.

For a complete description and fault diagnosis hints, refer to Cruise Control System.

47y TCS OFF Indicator Lamp
Cars equipped with the TCS have a switch for manually disengaging the system. When the system is manually disengaged, indicator lamp 47y lights up.

One pole of the indicator lamp is supplied with current via pin 5. The other pole is grounded via pin 12 of the TCS control module that the car is equipped with.

Testing The Indicator And Warning Lamps
By turning ignition switch 20 to a special Test position it is possible to check whether certain lamps on the card for indicator and warning lamps are OK or not.

The Test position is situated between the Drive and Start positions.

When the ignition switch is turned to the Drive position, current (+15 circuit) is supplied via fuse 13 to the lamps that are to be tested (terminal 5 on the card for indicator and warning lamps).

When the ignition switch is then turned to the Test position, positive current continues to be supplied to the lamps at the same time as they are grounded via pin 1 of the main instrument display panel in that terminals C and C1 of the ignition switch are connected to each other.

The following lamps are connected in circuit during the test:
47f Warning lamp, brakes
47m Indicator lamp, handbrake
47r Indicator lamp, washer fluid level