[PDF] TRIUMPH TR250 - TR6 WIRING DIAGRAMS ‘70 - ‘71 TR6. DIMMER SWITCH H I G H UW B E A M S L O W B E A M S HIGH BEAM INDICATOR BRAKE WARNING LAMP LOW OIL PRESSURE LAMP BRAKE WARNING SWITCH LOW OIL PRESSURE SWITCH IGNITION SWITCH REVERSE LIGHTS & SWITCH BRAKE LIGHTS & SWITCH AMMETER HEATER wFAN SWITCH. Oil Presure Warning Light | Triumph TR6 | MG-Cars Triumph TR6 Oil Presure Warning Light BBS discussion at MG-Cars. Both Oil & Brake lights are on with the ignition on but not started, and the Oil Pressure Warning Light stays on under (very) low revs, which is proper (or normal for my TR). The Oil Pressure Light then goes out under normal idle, but when the accelerator is depressed,..
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