Mitsubishi Lancer Evolution-VII Workshop Manual page 423

FUEL WARNING LAMP (See P.B-156.)
OIL PRESSURE WARNING LAMP (See P.B-157.)
BRAKE WARNING LAMP (See P.B-157.)
OPERATION
<Fuel warning lamp>
When the ignition switch is at the "ON" position,
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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
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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
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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.
CIRCUIT DIAGRAMS
TROUBLESHOOTING HINTS
1. No warning lamps illuminate.
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2. Some warning lamps do not illuminate.
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Check multi-purpose fuse No.(2).
Check lamp valve.
Check the switches and the gauge unit.
B-155