Indicator Warning Lamps II

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