A Battery B - Starter C Generator C1 Regulator D Ignition/starter switch E Windshield wiper switch E1 Light switch E2 Turn signal and headlight dimmer switch E3 Emergency flasher switch E9 Fresh air fan motor switch F Brake light switch F1 Oil pressure switch F2 Door contact and buzzer alarm switch,left F3 Door contact switch, right F4 Back up light switch F5 Luggage compartment light switch G Fuel gauge sending unit G1 Fuel gauge H Horn button H1 Horn H2 Ignition key warning buzzer J Dimmer relay J2 Emergency flasher relay J16 Power supply relay for fuel injection J17 Connection to fuel pump relay K1 High beam warning light K2 Generator charging warning light K3 Oil pressure warning light K4 Parking light warning light K5 Turn signal warning light K6 Emergency flasher warning light K7 Dual brake circuit warning light L1 Sealed Beam unit left headlight L2 Sealed Beam unit right headlight L6 Speedometer light L8 Clock light L10 Instrument panel light M2 Tail/brake light, right M4 Tail/brake light left M5 Turn signal and parking light, front left M6 Turn signal, rear left M7 Turn signal and parking light, front right M8 Turn signal, rear right M11 Side marker light. front M16 Back up light, left M17 Back up light, right N Ignition coil O Distributor P1 Spark plug connector, No 1 cylinder P2 Spark plug connector, No 2 cylinder P3 Spark plug connector, No 3 cylinder P4 Spark plug connector, No 4 cylinder Q1 Spark plug, No 1 cylinder Q2 Spark plug, No 2 cylinder Q3 Spark plug, No 3 cylinder Q4 Spark plug, No 4 cylinder S Fuse box S1 In line fuse for back up lights & fresh air fan T Cable adapter T1 Cable connector single T2 Cable connector double T3 Cable connector triple T20 Test network central plug V Windshield wiper motor V2 Fresh air motor front W Interior light W3 Luggage compartment light X License plate light Y Clock Ground straps: (1) Battery to frame (2) Transmission to frame (3) Horn to steering coupling (4) Front axle to frame TEST NETWORK The orange coloured spots are the connections in the test network which are wired to the central plug. The numbers in the spots correspond to the terminals in the central plug. NOTE On 1971 models built before May 1971, the mainline from the battery’s post to terminal B + on the regulator is a solid red wire. A solid red wire also joins regulator terminal B+ with the fuse box.