Isuzu N-Series. Manual — part 1150
8-312 CAB AND CHASSIS ELECTRICAL
5. Warning/indicator Light
5-1. When The Parking Brake Lever Is Pulled, The Indicator Light Does Not Light Up
5-2. Even When The Parking Brake Lever Is Released, The Indicator Light Does Not Go Off
N8A5377E
N8A5378E
CAB AND CHASSIS ELECTRICAL 8-313
5-3. While The Engine Is Operating, The Oil Pressure Warning Light Does Not Go Off
5-4. Even When The Fuel Tank Is Full with Fuel, The Fuel Warning Light Lights Up
• IS THE ENGINE OIL PRESSURE NORMAL?
• WITH THE OIL PRESSURE SWITCH CONNECTOR J-8
DISCONNECTED, DOES THE WARNING LIGHT GO
OFF?
• WHILE THE ENGINE IS OPERATING, IS THERE
CONTINUITY BETWEEN THE OIL PRESSURE SWITCH
CONNECTOR J-8 AND THE BODY GROUND?
YES
YES
NO
NO
NO
REFER TO THE "ENGINE" SECTION
REPAIR A SHORT CIRCUIT BETWEEN 1 J-8 AND 1
B-52 (METER)
REPLACE THE OIL PRESSURE SWITCH
N8A0316E
• WHEN THE FUEL TANK UNIT CONNECTOR J-28 IS
DISCONNECTED, DOES THE WARNING LIGHT GO
OFF?
• IS THE FUEL TANK UNIT NORMAL?
YES
NO
NO
REPAIR A SHORT CIRCUIT BETWEEN THE FUEL
TANK UNIT HARNESS SIDE CONNECTORS 2 J-28
AND 10 B-51 (METER)
REPLACE THE FUEL TANK UNIT
N8A0317E
8-314 CAB AND CHASSIS ELECTRICAL
5-5. Even When The Fuel Tank Is Empty, The Low Fuel Warning Light Does Not Light Up
• DOES THE WARNING LIGHT HAVE A BURNED OUT
BULB, OR IS THE SOCKET POORLY CONNECTED?
• IS THE FUEL TANK UNIT NORMAL?
YES
YES
NO
NO
REPLACE THE BULB, OR REPAIR A POOR
CONNECTION AT THE SOCKET
REPLACE THE FUEL TANK UNIT
REPAIR A POOR CONNECTION AT THE CONNECTOR
OR AN OPEN CIRCUIT BETWEEN THE HARNESS
SIDE CONNECTORS 2 J-28 AND 10 B-51 (METER)
OR 3 J-28 AND J-9
N8A0318E
CAB AND CHASSIS ELECTRICAL 8-315
5-6. Even When The Transfer Level Is Shifted to 4wd Position, The Indicator Light Does Not Light Up
N8A5382E
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