Ford F150 Pickup. Instruction — part 47

Fig. 10: Pinpoint Test B: Daytime Running Lamps Are On With Ignition Switch Off (B1 - B3)
Courtesy of FORD MOTOR CO.

2003 Ford Pickup F150

2003 ACCESSORIES AND BODY, CAB Daytime Running Lamps - F150 Pickup

2003 ACCESSORIES AND EQUIPMENT

Electronic Compass - F150 Pickup

DESCRIPTION AND OPERATION

ELECTRONIC COMPASS

A compass and outside temperature display are contained in the overhead console.

The compass and temperature display can be turned off and on by pressing the MODE switch in the overhead
console. The vehicle heading is displayed as one of N, NE, E, SE, S, SW, W, and NW.

COMPASS ACCURACY

Magnetic mounted devices like antennas and luggage racks should not be located on the front third of the
vehicle roof. Placing these devices near the compass will cause inaccurate directional readings. If these devices
must be used, accuracy may be improved by recalibrating the compass while the devices are installed on the
vehicle.

Driving near power lines, or driving in the area of large iron or steel structures can temporarily change the
compass' heading. If the compass remains inaccurate after driving near such objects, demagnetize the vehicle,
refer to VEHICLE DEMAGNETIZING and recalibrate the compass.

Most geographic areas (zones) have a magnetic north compass point that varies slightly from the northerly
direction on maps. This variation is four degrees between the adjacent zones and will become noticeable as the
vehicle crosses multiple zones. A correct zone setting eliminates the error. Refer to COMPASS ZONE
ADJUSTMENT .

TEMPERATURE, OUTSIDE AIR

The thermometer sensor (15A022) is attached to the radiator frame behind the grille. The temperature can be
displayed in Celsius or Fahrenheit by pressing the MODE switch.

If the outside temperature falls below 3.3°C (38°F), the display will alternate from "ICE" to the outside
temperature at a two second rate for one minute.

The outside air temperature reading can be affected by engine heat when the vehicle is idling or has been off for
less than two hours. The compass and thermometer (19A548) will limit the increase of the displayed
temperature to one degree per minute at very low speeds or immediately after the ignition is turned on. After
two minutes at a sustained speed of at least 53 km/h (33 mph), effects of engine heat are minimal and the
compass will display the current outside temperature reading. Temperature decreases are always updated
immediately.

If the outside air temperature sensor is short or open circuit, then the display will show 60°C (140°F) or-40°C (-
40°F) respectively in place of temperature.

2003 Ford Pickup F150

2003 ACCESSORIES AND EQUIPMENT Electronic Compass - F150 Pickup

2003 Ford Pickup F150

2003 ACCESSORIES AND EQUIPMENT Electronic Compass - F150 Pickup

DIAGNOSIS AND TESTING

ELECTRONIC COMPASS

Refer to INSTRUMENT CLUSTER for schematic and connector information.

Special Tool(s)

Fig. 1: Identifying Special Tool
Courtesy of FORD MOTOR CO.

Inspection and Verification

1. Verify the customer concern by operating the system.

2. Visually inspect for obvious signs of mechanical and electrical damage.

2003 Ford Pickup F150

2003 ACCESSORIES AND EQUIPMENT Electronic Compass - F150 Pickup

Fig. 2: Visual Inspection Chart
Courtesy of FORD MOTOR CO.

3. If inspection reveals an obvious concern(s) that can be readily identified, repair or install a new

component as required.

4. If the fault is not visually evident, proceed to Fig. 3 .

Symptom Chart

Fig. 3: Electronic Compass Symptom Chart
Courtesy of FORD MOTOR CO.

Pinpoint Tests

PINPOINT TEST A: COMPASS IS INACCURATE/INOPERATIVE

NOTE:

Always demagnetize a vehicle, set the zone and calibrate before replacing an
inaccurate compass.

NOTE:

After installing a new compass, always set the zone and calibrate.

2003 Ford Pickup F150

2003 ACCESSORIES AND EQUIPMENT Electronic Compass - F150 Pickup