Ford F150 Pickup. Instruction - 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