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CIRCUIT DIAGRAMS B-155 FUEL WARNING LAMP (See P.B-156.) OPERATION When the ignition switch is at the “ON” position, the fuel gauge unit resistance is small when the fuel level is high, and the fuel gauge unit resistance is large when the fuel level is low. When this resistance rises above a specified value, the fuel warning lamp illuminates to notify the driver that the fuel level is low. <Oil pressure warning lamp> When the lubrication system fails after engine starting, resulting in the oil pressure failing to build up, the oil pressure switch turns on causing the oil pressure warning lamp to illuminate. <Brake warning lamp> When the brake fluid level goes down below a predetermined level with the ignition switch in the “ON” position, the brake fluid level switch is activated or the parking brake switch is turned on, causing the brake warning lamp to illuminate. TROUBLESHOOTING HINTS D Check multi-purpose fuse No.(2). 2. Some warning lamps do not illuminate. D Check lamp valve. D Check the switches and the gauge unit. |