Contents Section: Procedures All sections

Service Indicator & Warning Lights Ford Bronco II I

Procedures 2 illustrations ~506 words

Scheme 1

Scheme 1: SERVICE INDICATOR & WARNING LIGHTS

Scheme 2

Scheme 2

CHECK ENGINE WARNING LIGHT

The CHECK ENGINE warning light indicates malfunctions in the electronic engine control system. If functioning correctly, the light comes on when ignition switch is turned to the ON position and goes out after engine is started. If light fails to glow with ignition switch or remains on when running, a service need is indicated.

BRAKE WARNING LIGHT

The BRAKE light indicates two things; either the parking brake is on or the brake fluid level is low. The light should come on briefly when ignition switch is turned to the ON position and goes out after engine is started, and the parking brake is released. If the light stays on, servicing is needed.

CHARGING SYSTEM LIGHT

This light will glow with the ignition switch in the ON or START position until the engine catches. The light may also glow when there is a heavy electrical load on the system. If the electrical load is reduced and the light remains on, the electrical system needs to be checked.

BATTERY VOLTAGE GAUGE

Gauge should register in the "Normal" range during operation. If gauge falls below "Normal" range during regular driving, the system should be checked.

ENGINE OIL PRESSURE GAUGE

Under regular operating conditions, gauge should register within "Normal" range. If gauge drops below "Normal" operating band, stop immediately and check oil level.

CAUTIONDO NOT operate vehicle if oil pressure gauge continues to operate below "Normal" operating range.

ENGINE COOLANT TEMPERATURE GAUGE

Gauge should register within "Normal" band under regular operating conditions. If gauge rises into "Hot" range, stop the vehicle, let the engine cool and check the coolant level.

COOLANT TEMPERATURE LIGHT

This light comes indicates that the engine coolant temperature level is high and the engine is overheating. If the light glows while driving, stop the vehicle and let the engine cool and check the coolant level. If the light glows again shortly after adding coolant, have the engine cooling system serviced.

CHECK EMISSIONS WARNING LIGHT

When this light stays on continuously with the ignition switch in the ON position it indicates that maintenance of the emissions control devices is required. Have the emissions control system checked as soon as possible.

WATER IN FUEL LIGHT (DIESEL ENGINES ONLY)

This light indicates water that the fuel conditioner has removed a significant amount of water from the fuel system. If this light glows while driving, stop the vehicle as soon as possible, turn off the engine and drain the fuel conditioner.

CAUTIONAllowing water to remain in the fuel conditioner could result in extensive damage to or failure of the fuel injection system.

REAR ANTI-LOCK BRAKE WARNING LIGHT

If functioning correctly, this light comes on when the ignition switch is turned to the ON position and goes out after engine is started. If the light glows while driving, the rear anti-lock brake system may be inoperative. Service system immediately.

CHECK OIL LEVEL LIGHT

This warning light indicates a possible low oil level or low oil pressure. If functioning correctly, the light comes on when ignition switch is turned to the ON position and goes out after engine has started. If light remains on when running, check the oil level and add oil if necessary.