Indicator Warning Lamps II

�D6WIndicator 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 Generator at the rear of the engine on the right-hand side.
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 Warning lamp, brakes.
47G Full beam indicator lamp
47J Indicator lamp, electrically heated rear window.
47K SHIFT UP indicator light.
47L EXH warning lamp.
47M Indicator lamp, hand brake.
47N Indicator lamp, rear fog light.
47Q ABS/ ABS-TCS warning lamp.
47R Indicator lamp, washer fluid level.
47U Cruise Control system indicator lamp.
47Y TCS CTRL warning lamp
113 Time-delay relay, electrically heated rear window, in main fuse box behind the glove box.
113 Relay, electrically heated rear win- dow, in main fuse box behind the glove box.
141 Cruise Control switch on the direction indicator stalk switch on the left-hand side of the steering wheel.
159 Distribution terminal (+15 circuit) in main fuse box behind the glove box.
161 Rear fog light switch, on the 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.
294 TC-ABS pressure switch, on the hydraulic unit.
299 Brake fluid level sensor, TC-ABS, in the brake fluid reservoir.
342A Fuse board in main fuse box in front of battery.
376 ETS throttle control module, under left-hand front seat.
382 TC-ABS control module, on the battery tray.
416 Relay, EXH warning, on a bracket behind the front seat member on the right-hand side.
430 Control module, Trionic engine management system, in engine bay on the left-hand side behind the bulkhead partition.
507 TCS V6 control module, under the left-hand front seat.
508 Control module, Cruise Control system, adjacent to the battery tray.

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

4-Pin Connector
H4-15 To the left under the right-hand seat.

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 Connectors
H24-1 In the engine bay on the bulkhead partition.
H24-2 Behind the left-hand headlamp.

70-Pin Connector
H70-1 iIn 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 Indicator Lamp, Charging
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 indiciator lamp 47E. The other lamp pole is connected to generator 2 via pin a 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 is grounded through the generator and the 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 terminals and the lamp goes out.

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

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

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 47. The other pole of the lamp is connected via pin ii 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 ABS Anti-lock Brakes.

47G Indicator Lamp, Full Beam
The indicator lamp shows the driver when full beams are on.

One pole of the indicator lamp is supplied with current from full 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, 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 control module 430.

47L EXH Indicator Lamp
In certain markets, an EXH indicator lamp is included which reminds the driver that parts of the exhaust emission control system must be maintained.

One pole of the pilot 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, Handbrake
The hand brake indicator lamp shows the driver when the hand brake 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 hand brake switch 43 via pin 13 of the main instrument display panel. The lamp remains on as long as the hand brake is applied.

47N Indicator Lamp, Rear Fog Light
In certain markets, an indicator lamp is included which shows the driver when the rear fog light is switched on. 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 grounded via pin 7 of the main instrument display panel.

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

47Q ABS Indicator Lamp
If there is a fault in the ABS or TCS systems, warning lamp 47Q lights up and the system is disconnected. The car's brake system then works as a conventional system.

One pole of the lamp is supplied with current via pin 5 and grounded via pin 8 in each 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 liters or less, the level switch closes and the lamp lights up.

47U Indicator Lamp, Cruise Control
In certain markets, an indicator lamp is included which shows the driver when the Cruise Control is on. 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 grounded via pin 7 of the main instrument display panel. For a complete description and fault-tracing hints, see 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.

FAULT DIAGNOSIS HINTS
47F Brake Warning Lamp
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.

47M Indicator Lamp, Handbrake
The indicator lamp is activated when the ignitions witch 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 cable and ground it to the hand- brake switch. If the lamp lights up, the circuit is OK.
4. Check the connectors, wiring harness and ground connections.

47R Indicator Lamp, Washer Fluid Level
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 dm (liters) in the reservoir, the sensor should close and the lamp light up.
4. Check the connectors, wiring harness and ground connections.

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 card 47 (for indicator and warning lamps) are OK. 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 card 47 for pilot and warning lamps).

When the ignition switch is then turned to the Test position, positive current continues to be supplied at the same time as the lamps are grounded via pin 1 of the main instrument display panel and because 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, hand brake
47R Indicator lamp, washer fluid level