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Home >> Ford >> 2003 >> Excursion 7.3 F, 4WD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Cluster System - Excursion & F250-F550 Super Duty >> Diagnosis And Testing >> Instrument Cluster >> Symptom Chart

Symptom Chart

SYMPTOM CHART

Condition Possible Sources Action
No communication with the instrument cluster
  • Central junction box (CJB) fuse(s):
    • 33 (15A).
    • 35 (10A).
    • 41 (10A).
    • 45 (10A).
  • Circuitry.
  • J1850 standard corporate protocol (SCP) communication network.
  • Instrument cluster.
 Go To PINPOINT TEST A .
Incorrect fuel gauge indication
  • Fuel sender.
  • Circuitry.
  • Fuel tank.
  • Instrument cluster.
 Go To PINPOINT TEST B .
Incorrect voltage gauge indication-manual transmission only
  • Instrument cluster.
  • Circuitry.
 Go To PINPOINT TEST C .
Incorrect oil pressure gauge indication
  • Instrument cluster.
  • Circuitry.
  • Oil pressure switch.
 Go To PINPOINT TEST D .
Incorrect temperature gauge indication
  • Circuitry.
  • Engine coolant temperature sensor (ECT) (diesel only).
  • J1850 standard corporate protocol (SCP) communication network.
  • Instrument cluster.
  • Powertrain control module (PCM).
 Go To PINPOINT TEST E .
Incorrect transmission temperature gauge indication-automatic transmission only
  • Circuitry.
  • Transmission temperature sensor.
  • Powertrain control module (PCM).
  • Instrument cluster.
 Go To PINPOINT TEST F .
The low fuel warning indicator is never/always on
  • Instrument cluster.
  • Low fuel indicator bulb.
 Go To PINPOINT TEST G .
The speedometer is inoperative
  • Instrument cluster.
  • Circuitry.
  • Anti-lock brake system (ABS) module.
 Go To PINPOINT TEST H .
The tachometer is inoperative
  • Circuitry.
  • Instrument cluster.
  • Generator (diesel only).
 Go To PINPOINT TEST I .
Trip odometer inoperative, speedometer OK
  • Instrument cluster.
 VERIFY the trip odometer reset button is not binding. If OK, INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER . TEST the system for normal operation.
  • Inaccurate configuration.
 REFER to MODULE CONFIGURATION - EXCURSION & F250-F550 SUPER DUTY PICKUP for module configuration.
The door ajar indicator is inoperative (chime is operative)/does not operate correctly
  • Indicator bulb.
  • Circuitry.
  • Instrument cluster.
  • Body security module.
 Go To PINPOINT TEST J .
The safety belt warning indicator is inoperative (chime is operative)/does not operate correctly
  • Indicator bulb.
  • Circuitry.
  • Instrument cluster.
  • Safety belt switch (part of the safety belt retractor).
 Go To PINPOINT TEST K .
Inaccurate speedometer reading
  • Instrument cluster.
  • Anti-lock brake system (ABS) module.
  • Tires.
 Go To PINPOINT TEST H .
  • Inaccurate axle size configuration.
 REFER to MODULE CONFIGURATION - EXCURSION & F250-F550 SUPER DUTY PICKUP for module configuration.
The ABS warning indicator is never/always on
  • Indicator bulb.
  • Circuitry.
  • Instrument cluster.
  • Anti-lock brake system (ABS) module.
 Go To PINPOINT TEST L .
The brake warning indicator is never on
  • Indicator bulb.
  • Circuitry.
  • Instrument cluster.
  • Brake warning indicator relay.
  • Anti-lock brake system (ABS) module.
  • Anti-lock brake system (ABS) module.
  • Brake fluid level switch.
  • Parking brake switch.
 Go To PINPOINT TEST M .
The brake warning indicator is always on
  • Circuitry.
  • Brake fluid level switch.
  • Parking brake switch.
  • Anti-lock brake system (ABS) module.
  • Hydromax module (if equipped).
  • Instrument cluster.
 REFER to BRAKE SYSTEM-GENERAL INFORMATION - EXCURSION .
Malfunction indicator lamp (MIL) indicator is never on
  • Indicator LED.
  • Circuitry.
  • Instrument cluster.
  • J1850 standard corporate protocol (SCP) communication network.
  • Powertrain control module (PCM).
 Go To PINPOINT TEST N .
Malfunction indicator lamp (MIL) indicator is always on
  • Diagnostic trouble code (DTC) related concern(s).
 REFER to SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE .
The charging system indicator is never on
  • Central junction box (CJB) fuse 45 (10A).
  • Charging system.
  • Indicator LED.
  • Circuitry.
  • Instrument cluster.
 Go To PINPOINT TEST O .
The charging system indicator is always on
  • Circuitry.
  • Generator (charging system).
 REFER to GENERATORS & REGULATORS - EXCUSION & F250-550 SUPER DUTY PICKUPS (GASOLINE) , GENERATORS & REGULATORS - EXCUSION & F250-550 SUPER DUTY PICKUPS (DIESEL WITH SINGLE GENERATOR) or GENERATORS & REGULATORS - F250-550 SUPER DUTY PICKUPS (DIESEL WITH DUAL GENERATORS) .
The air bag indicator warning is never/always on
  • Indicator bulb.
  • Circuitry.
  • Instrument cluster.
  • Air bag diagnostic monitor.
 Go To PINPOINT TEST P .
High beam indicator is never on
  • Indicator bulb.
  • Circuitry.
  • Instrument cluster.
 Go To PINPOINT TEST Q .
The LH turn indicator is never on
  • Indicator bulb.
  • Circuitry.
  • Instrument cluster.
 Go To PINPOINT TEST R .
The RH turn indicator is never on
  • Indicator bulb.
  • Circuitry.
  • Instrument cluster.
 Go To PINPOINT TEST S .
The 4X4 high/LOW RANGE indicator is never/always on-electronic
  • Circuitry.
  • 4X4 range select switch.
  • Indicator bulb.
 Go To PINPOINT TEST T .
  • Inaccurate instrument cluster configuration.
 REFER to MODULE CONFIGURATION - EXCURSION & F250-F550 SUPER DUTY PICKUP for module configuration.
The 4X4 high/LOW RANGE indicator is never/always on-manual
  • Circuitry.
  • 4X4 range select switch.
 Go To PINPOINT TEST U .
  • Inaccurate instrument cluster configuration.
 REFER to MODULE CONFIGURATION - EXCURSION & F250-F550 SUPER DUTY PICKUP for module configuration.
The wait to start indicator is never/always on-diesel only
  • Circuitry.
  • Powertrain control module (PCM).
 Go To PINPOINT TEST V .
The water in fuel indicator is never/always on-diesel only
  • Indicator bulb.
  • Circuitry.
  • Water in fuel switch.
  • Instrument cluster.
 Go To PINPOINT TEST W .
The speed control indicator is never/always on
  • Indicator bulb.
  • Circuitry.
  • Speed control servo.
  • Instrument cluster.
 Go To PINPOINT TEST X .
The theft indicator is never/always on
  • Indicator bulb.
  • Circuitry.
  • Passive anti-theft (PATS) module.
  • Instrument cluster.
 Go To PINPOINT TEST Y .
The check fuel cap indicator is inoperative/always on
  • Evaporative system.
  • Powertrain control module (PCM).
  • Instrument cluster.
 Go To PINPOINT TEST Z .
The CHECK GAGE warning indicator is inoperative/always on
  • CHECK GAGE indicator bulb.
  • Circuitry.
  • Instrument cluster.
 Go To PINPOINT TEST AA .
The check air filter indicator is never/always on-diesel only
  • Check air filter indicator bulb.
  • Circuitry.
  • Check air filter switch.
  • Instrument cluster.
 Go To PINPOINT TEST AB .
The instrument cluster is inoperative
  • Central junction box (CJB) fuse(s):
    • 33 (15A).
    • 33 (15A).
    • 35 (10A).
    • 41 (10A).
    • 45 (10A).
  • Circuitry.
  • Instrument cluster.
 Go To PINPOINT TEST AC .
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