Negative Distribution Terminal 158

Earth Connections:

Negative Distribution Terminal 158:

Components connected
Distribution terminal 158 consists of a ring of flat pins and is connected to earthing point 7 on the radiator cross-member by means of cable 3 SV.

The terminal is located on the underside of the electrical distribution box. The following components are connected to the terminal. Some of the components listed below are fitted only to cars of certain versions or for certain markets.

7 Earthing point on the radiator cross-member
8 Lighting relay
21 Ignition switch relay
42 Brake warning switch
62 Windscreen wiper motor
73 Timing service instrument socket
89 Side direction indicator, left-hand
90 Side direction indicator, right-hand
102 Fuel pump relay
104 Hot start relay (1989 model)
106 Time-delay relay
107 Relay for extra fog lamps (US, CA, JP) (1989 model). (Note: Relay 107 is not earthed at distribution terminal 158. It is only the other terminals of the relay socket that are used.)
113 Relay for the electrically heated rear window
126 Motor for the left-hand electrically operated rear-view mirror (across 4-pole connectors 123 in the engine compartment at the left-hand door upper hinge and in the left-hand front door)
138 Engine speed relay, Turbo with manual gearbox (1989 model)
155 Relay for the AC radiator fan
156 Relay for the AC compressor
174 Relay for daylight driving lights (CA)
207 Electrically-heated rear-view mirrors
259 Reverse-current protection relay (GB) (1989 model)
271 Preheater for the Lambda sensor (across 2-pole connector 59 under distribution block 75, on the right-hand side of the engine compartment)