Ford F150 Pickup. Manual — part 62

z

Instrument cluster.

Incorrect voltage gauge
indication

z

Circuitry.

z

Generator.

z

Instrument cluster.

Go To PINPOINT TEST C .

Incorrect oil pressure gauge
indication

z

Circuitry.

z

Engine oil pressure
switch.

z

Instrument cluster.

Go To PINPOINT TEST D .

Incorrect temperature gauge
indication

z

Circuitry.

z

Instrument cluster.

z

Powertrain control
module (PCM).

z

Engine coolant
temperature sensor.

Go To PINPOINT TEST E .

Incorrect boost gauge indication

z

Pressure/vacuum line.

z

Instrument cluster.

Go To PINPOINT TEST F .

The LOW FUEL warning
indicator is never/always on

z

Instrument cluster.

z

LOW FUEL warning
indicator bulb.

Go To PINPOINT TEST G .

Oil gauge reads normal with
engine off

z

Instrument cluster.

INSTALL a new instrument cluster.

REFER to INSTRUMENT

CLUSTER . CLEAR the DTCs.

REPEAT the self-test.

Low oil level warning indicator
stays illuminated; temperature
gauge reads normal

z

Instrument cluster.

z

Low or no oil pressure.

z

Engine oil pressure
switch.

z

Circuitry.

Go To PINPOINT TEST D .

The speedometer/odometer is
inoperative

z

Circuitry.

z

Powertrain control
module (PCM).

z

Instrument cluster.

Go To PINPOINT TEST H .

The tachometer is inoperative

z

Circuitry.

z

Powertrain control
module (PCM).

z

Instrument cluster.

z

J1850 SCP
communication network.

Go To PINPOINT TEST I .

2003 Ford Pickup F150

2003 ACCESSORIES AND BODY, CAB Instrument Cluster-Conventional - F150 Pickup

The safety belt warning indicator
is inoperative (chime is
operative)

z

Circuitry.

z

Safety belt switch.

z

Generic electronic
module/central timer
module (GEM/CTM).

z

Safety belt warning
indicator bulb.

z

Instrument cluster.

Go To PINPOINT TEST J .

The DOOR AJAR indicator is
inoperative (chime is operative)

z

Circuitry.

z

Door ajar switch.

z

Door ajar indicator bulb.

z

Generic electronic
module/central timer
module (GEM/CTM).

z

Instrument cluster.

Go To PINPOINT TEST L .

The DOOR AJAR indicator does
not operate correctly (chime is
operative)

z

Circuitry.

z

Door ajar switch.

z

Generic electronic
module/central timer
module (GEM/CTM).

z

Instrument cluster.

Go To PINPOINT TEST M .

Inaccurate speedometer reading

z

Circuitry.

z

Powertrain control
module (PCM).

z

Instrument cluster.

Go To PINPOINT TEST H .

The BRAKE warning indicator is
never/always on

z

Circuitry.

z

Brake fluid level.

z

Parking brake switch.

z

Fluid level indicator
switch.

z

BRAKE warning
indicator bulb.

z

Instrument cluster.

z

Anti-lock brake system
(ABS) module (RABS
only).

Go To PINPOINT TEST N .

The charge system warning
indicator is never/always on

z

Circuitry.

z

Generator (GEN).

z

Charge system warning

Go To PINPOINT TEST O .

2003 Ford Pickup F150

2003 ACCESSORIES AND BODY, CAB Instrument Cluster-Conventional - F150 Pickup

indicator bulb.

z

Instrument cluster.

The 4X4 indicator is
never/always on

z

Circuitry.

z

Generic electronic
module (GEM).

z

4x4 indicator bulb.

z

Instrument cluster.

Go To PINPOINT TEST P .

The LOW RANGE indicator is
never/always on

z

Circuitry.

z

Powertrain control
module (PCM).

z

LOW RANGE indicator
bulb.

z

Instrument cluster.

REFER to SELF-DIAGNOSTICS

- CNG, FLEX-FUEL &

GASOLINE .

The high beam indicator is
inoperative/always on

z

Circuitry.

z

High beam indicator bulb.

z

Instrument cluster.

Go To PINPOINT TEST Q .

The air bag warning indicator is
inoperative/always on

z

Circuitry.

z

Air bag warning indicator
bulb.

z

Instrument cluster.

z

Restraint control module
(RCM).

REFER to AIR BAG RESTRAINT

SYSTEMS - F150 PICKUP .

The ABS warning indicator is
inoperative/always on

z

Circuitry.

z

ABS warning indicator
bulb.

z

Instrument cluster.

z

Anti-lock brake system
(ABS) module.

Go To PINPOINT TEST R .

The SERVICE ENGINE SOON
indicator is inoperative/always on

z

Circuitry.

z

SERVICE ENGINE
SOON indicator bulb.

z

Instrument cluster.

z

Powertrain control
module (PCM).

Go To PINPOINT TEST S .

The turn/hazard indicator is
inoperative/always on

z

Circuitry.

z

Turn/hazard indicator
bulb(s).

z

Instrument cluster.

Go To PINPOINT TEST T .

2003 Ford Pickup F150

2003 ACCESSORIES AND BODY, CAB Instrument Cluster-Conventional - F150 Pickup

PINPOINT TEST A: NO COMMUNICATION WITH THE INSTRUMENT CLUSTER MODULE

The speed control indicator is
never on

z

Circuitry.

z

Speed control indicator
bulb.

z

Instrument cluster.

z

Speed control.

Go To PINPOINT TEST U .

The speed control is always on

z

Circuitry.

z

Speed control servo.

REFER to VEHICLE SPEED

CONTROL - F150 .

The check fuel cap indicator is
inoperative

z

Instrument cluster.

z

Check fuel cap indicator
bulb.

z

Powertrain control
module (PCM).

Go To PINPOINT TEST V .

The check fuel cap indicator is
always on

z

Powertrain control
module (PCM).

REFER to SELF-DIAGNOSTICS

- CNG, FLEX-FUEL &

GASOLINE .

The check gauge warning
indicator is inoperative/always on

z

Circuitry.

z

Check gauge warning
indicator bulb.

z

Instrument cluster.

Go To PINPOINT TEST X .

The THEFT indicator is
inoperative/always on

z

Circuitry.

z

LED.

z

Instrument cluster.

REFER to ANTI-THEFT - PATS -

F150 .

The integrated circuit display is
inoperative/erratic

z

Instrument cluster.

INSTALL a new instrument cluster.

REFER to INSTRUMENT

CLUSTER . TEST the system for

normal operation.

The instrument cluster is
inoperative

z

Central junction box
(CJB) fuse(s):

z

2 (5A).

z

6 (5A).

z

30 (30A).

z

Circuitry.

z

Instrument cluster.

Go To PINPOINT TEST W .

CAUTION: Use the correct probe adapter(s) when making measurements. Failure to

use the correct probe adapter(s) may damage the connector.

2003 Ford Pickup F150

2003 ACCESSORIES AND BODY, CAB Instrument Cluster-Conventional - F150 Pickup