Electrical Diagrams

Diagrams:

Components:

Locations of components

3 Earthing point
In the fascia

7 Earthing point
On the radiator cross-member

9 Earthing point
In the luggage compartment

22A Fuse holder
In the electrical distribution box, in the engine compartment, on the left-hand wheel housing

23 Flasher relay
Under the fascia on the left-hand side, behind the knee shield

24 Direction indicator stalk switch
On the left-hand side of the steering column

25 Hazard warning light switch
On the right-hand side of the fascia

27 Direction indicator lamps, left-hand
In the front and rear light clusters on the left-hand side of the car

28 Direction indicator lamps, right-hand
In the front and rear light clusters on the right-hand side of the car

47H Left-hand direction indicator warning lamp
In the combined instrument in the fascia

47I Right-hand direction indicator warning lamp
In the combined instrument in the fascia

58 12-pole connector
On the angle bracket, under the fascia on the left-hand side (behind the knee shield)

89 Side direction indicator, left-hand
On the left-hand front wing

90 Side direction indicator, right-hand
On the right-hand front wing

93 Earthing point
On the left-hand wheel housing member

118 Corner lights
In the front light clusters

152B 29-pole red connector
152C 29-pole black connector
In the electrical distribution box in the engine compartment, on the left-hand wheel housing The connectors are accessible from the interior of the car

158 Negative distribution terminal
In the electrical distribution box in the engine compartment, on the left-hand wheel housing

Operation

Direction indicators
This section covers only cars for the USA and Canadian markets and 1989 models for the Japanese market.

The supply is taken from fuse 7 to hazard warning light switch 25 via the red 29-pole connector 152B. It is then taken through this switch (in the un-actuated position) to flasher relay 23.

When direction indicator stalk switch 24 is moved from the neutral position, current pulses will be supplied from flasher relay 23 to left-hand direction indicator lamps 27 or right-hand direction indicator lamps 28 (terminal L or R), via connector 58, and pin 11 (left) or pin 10 (right). The front lamps are also supplied via the black 29-pole connector 152C.

In addition, the two direction indicator warning lamps, 47H (left) and 471 (right) are connected in parallel with the direction indicator lamps for the relevant side of the car.

The front light clusters of cars for these markets are also equipped with corner lights 118, which light up with a steady white light when the corresponding direction indicator flashes. The corner lights are is supplied directly from fuse 20 (not through the flasher relay). Fuse 20 is live when the ignition switch is in the parked or drive position.

The respective lamp 118 is supplied from terminal 3 (left-hand) or 2 (right-hand) of direction indicator stalk switch 24, via the black 29-pole connector 152C.

Side direction indicators 89 and 90 are located on the left-hand and right-hand front wings respectively. The lamps are supplied in parallel with the direction indicator lamps in the front light clusters.

Hazard warning lights
The supply is taken from fuse 27 to hazard warning light switch 25 via the red 29-pole connector 152B. When this switch is depressed, current will be supplied to flasher relay 23 via terminal 2.

From the flasher relay, the current pulses return to switch 25. Since the switch is closed, the current pulses continue to terminals 7 (left-hand) and 6 (right-hand). Current pulses will be obtained only when the flasher relay is energized.

Front and rear left-hand direction indicator lamps 27 are then supplied with current pulses via terminal L of direction indicator stalk switch 24, across pin 11 of connector 58.

Lamps 28 on the right-hand side of the car are supplied in the same way from terminal R of direction indicator switch 24, across pin 10 of connector 58. The two direction indicator warning lamps 47H (left-hand) and 471 (right-hand) will also flash. Since switch 25 is closed, the lamp in the switch will also flash.

Fault-tracing hints

Direction Indicators
The direction indicators are operative when the ignition switch is in the drive position.

1. Check fuse 7 and check that the supply to it is live.
2. Check that terminals 1 and 2 of hazard warning light switch 25 are live.
3. Check that terminals 49 and 49A of flasher relay 23 are live.
4. Check that terminal 54 of direction indicator stalk switch 24 is live.
5. Operate the direction indicator stalk switch. Check the bulbs and check that the supply to them is live.
6. Check the relevant cable harness and earth connections.

Hazard warning lights
The supply to the hazard warning lights is always live.

1. Check fuse 27 and check that the supply to it is live.
2. Check that the supply to hazard warning light switch 25 is live.
3. Press the switch and check that terminal 2 is live.
4. Check that terminals 49 and 49A of flasher relay 23 are live.
5. Check the bulbs and check that the supply to them is live.
6. Check the connectors, cable harnesses and earth connections.

To check the corner lights
Activate this system by turning the ignition switch to the drive position.

1. Check fuse 20 and check that the supply to it is live.
2. Check that terminal 1 of switch 24 is live.
3. Operate the direction indicator stalk switch. Check the bulbs and check that the supply to them is live.
4. Check the relevant cable harness and earth connections.