Symptom Chart

WARNING: This page is about a different car, the 2007 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.

Symptom Chart

Condition	Possible Sources	Action
Incorrect fuel gauge indication	Circuitry Fuel pump module Fuel level sensor Fuel tank Instrument cluster	Go to Pinpoint Test A .
The temperature gauge is inoperative	Powertrain control module (PCM) Instrument cluster	Go to Pinpoint Test B .
The speedometer is inoperative/inaccurate	PCM Instrument cluster	Go to Pinpoint Test C .
The odometer is inoperative	PCM Instrument cluster	Go to Pinpoint Test D .
Incorrect tachometer indication	PCM Instrument cluster	Go to Pinpoint Test E .
The low oil pressure warning indicator is never/always on	Circuitry Base engine concern Oil pressure switch Instrument cluster	Go to Pinpoint Test F .
The charging system warning indicator is never/always on	Circuitry Charging system Generator Instrument cluster	Go to Pinpoint Test G .
The brake warning indicator is never on	Circuitry Parking brake switch Brake fluid level switch Anti-lock brake system (ABS) module Instrument cluster	Go to Pinpoint Test H .
The brake warning indicator is always on	Circuitry Parking brake switch ABS module Instrument cluster	Go to Pinpoint Test I .
The anti-lock brake system (ABS) warning indicator is never on	ABS module Instrument cluster	Go to Pinpoint Test J .
The anti-lock brake system (ABS) warning indicator is always on	Circuitry Base brake system ABS module Instrument cluster	Go to Pinpoint Test K .
The malfunction indicator lamp (MIL) indicator is never/always on	PCM Instrument cluster	Go to Pinpoint Test L .
The high beam indicator is never on	Bulb Circuitry Smart junction box (SJB) Instrument cluster	Go to Pinpoint Test M .
The high beam indicator is always on	Circuitry Instrument cluster	VERIFY that the high beams are not illuminated. If the high beams are illuminated, REFER to EXTERIOR LIGHTING to continue diagnosis of the LH turn signals. If the high beams are not illuminated, INSTALL a new instrument cluster. REFER to Instrument Cluster (IC) . TEST the system for normal operation.
The LH turn signal indicator is never on	Circuitry Bulb Instrument cluster	Go to Pinpoint Test N .
The LH turn signal indicator is always on	Circuitry Instrument cluster	VERIFY that the LH turn signals are not illuminated. If the LH turn signals are illuminated, REFER to EXTERIOR LIGHTING to continue diagnosis of the LH turn signals. If the LH turn signals are not illuminated, INSTALL a new instrument cluster. REFER to Instrument Cluster (IC) . TEST the system for normal operation.
The RH turn signal indicator is never on	Circuitry Bulb Instrument cluster	Go to Pinpoint Test O .
The RH turn signal indicator is always on	Circuitry Instrument cluster	VERIFY that the RH turn signals are not illuminated. If the RH turn signals are illuminated, REFER to EXTERIOR LIGHTING to continue diagnosis of the RH turn signals. If the RH turn signals are not illuminated, INSTALL a new instrument cluster. REFER to Instrument Cluster (IC) . TEST the system for normal operation.
The overdrive (O/D) off indicator is never/always on	PCM Instrument cluster	Go to Pinpoint Test P .
The speed control indicator is never/always on	PCM Instrument cluster	Go to Pinpoint Test Q .
The door ajar warning indicator is never/always on	Circuitry SJB Instrument cluster	Go to Pinpoint Test R .
The safety belt warning indicator is never/always on	Restraints control module (RCM) Instrument cluster	Go to Pinpoint Test S .
The four wheel drive (4WD) low/4WD high indicator is never/always on	4WD control module Instrument cluster	Go to Pinpoint Test T .
The air bag warning indicator is never/always on	RCM Instrument cluster	Go to Pinpoint Test U .
The anti-theft indicator is never/always on	Instrument cluster	Go to Pinpoint Test V .
The check fuel cap warning indicator is never/always on	PCM Instrument cluster	Go to Pinpoint Test W .
The fail-safe cooling warning indicator is never/always on	PCM Instrument cluster	Go to Pinpoint Test X .
The fog lamp indicator is never/always on	SJB Instrument cluster	Go to Pinpoint Test Y .
The tire pressure monitoring system (TPMS) warning indicator is never/always on	TPMS module Instrument cluster	Go to Pinpoint Test Z .
The instrument cluster is inoperative	Fuse(s) Circuitry Instrument cluster	Go to Pinpoint Test AA .