Symptom Chart

WARNING: This page is about a different car, the 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

Symptom Chart

Condition	Possible Sources	Action
No communication with the instrument cluster	Fuse(s) Circuitry Instrument cluster	REFER to MODULE COMMUNICATIONS NETWORK article.
Incorrect fuel gauge indication - single fuel tank	Circuitry Fuel pump module Fuel level sensor Fuel tank Instrument cluster	Go to Pinpoint Test A .
Incorrect fuel gauge indication - dual fuel tanks	Circuitry Fuel level sender Fuel tank Instrument cluster	Go to Pinpoint Test B .
Incorrect voltage gauge indication	Charging system Instrument cluster	Go to Pinpoint Test C .
Incorrect oil pressure gauge indication	Circuitry Oil pressure switch Base engine concern (high or low oil pressure) Instrument cluster	Go to Pinpoint Test D .
Incorrect temperature gauge indication	Instrument cluster Powertrain control module (PCM)	Go to Pinpoint Test E .
Incorrect transmission temperature gauge indication	PCM Instrument cluster	Go to Pinpoint Test F .
Incorrect speedometer indication	Anti-lock brake system (ABS) concern ABS module Instrument cluster	Go to Pinpoint Test G .
The odometer is inoperative	PCM Instrument cluster	Go to Pinpoint Test H .
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 (IC) . TEST the system for normal operation.
	Inaccurate configuration	REFER to MODULE CONFIGURATION article for module configuration.
Incorrect tachometer indication	PCM Instrument cluster	Go to Pinpoint Test I .
The anti-lock brake system (ABS) warning indicator is never/always on	ABS module Instrument cluster	Go to Pinpoint Test J .
The brake warning indicator is never on	Circuitry Brake fluid level switch Parking brake switch ABS module Instrument cluster	Go to Pinpoint Test K .
The brake warning indicator is always on	Circuitry Brake fluid level switch Parking brake switch ABS module Instrument cluster	Go to Pinpoint Test L .
The charging system warning indicator is never on	Circuitry Generator PCM (dual generators only) Instrument cluster	Go to Pinpoint Test M .
The charging system warning indicator is always on	Circuitry Charging system	REFER to CHARGING SYSTEM - GENERAL INFORMATION article to continue diagnosis of the charging system.
The air bag indicator warning is never/always on	Circuitry Restraints control module (RCM) Instrument cluster	Go to Pinpoint Test N .
The high beam indicator is never on	Circuitry Instrument cluster	Go to Pinpoint Test O .
The LH turn indicator is never on	Circuitry Instrument cluster	Go to Pinpoint Test P .
The RH turn indicator is never on	Circuitry Instrument cluster	Go to Pinpoint Test Q .
The 4x4 high/low range indicator is never/always on	Inaccurate instrument cluster configuration. Circuitry Mode select switch 4WD control module Instrument cluster	Go to Pinpoint Test R .
The wait to start indicator is never/always on	PCM Instrument cluster	Go to Pinpoint Test S .
The speed control indicator is never/always on	PCM Instrument cluster	Go to Pinpoint Test T .
The tow haul indicator is never on	PCM Instrument cluster	Go to Pinpoint Test U .
The wrench indicator is never on	PCM Instrument cluster	Go to Pinpoint Test V .
The safety belt warning indicator is never/always on	Circuitry Safety belt switch (part of the safety belt buckle) Instrument cluster	Go to Pinpoint Test W .
The malfunction indicator lamp (MIL) is never on	PCM Instrument cluster	Go to Pinpoint Test X .
The malfunction indicator lamp (MIL) is always on	DTC related concern(s)	REFER to INTRODUCTION -- DIESEL ENGINES or INTRODUCTION -- GASOLINE ENGINES article.
The instrument cluster is inoperative	Fuse(s) Circuitry Instrument cluster	Go to Pinpoint Test Y .