Symptom Chart

Condition	Possible Sources	Action
No communication with the instrument cluster	Fuse Circuitry Instrument cluster	REFER to MODULE COMMUNICATIONS NETWORK .
The instrument cluster is inoperative	Fuse Circuitry Instrument cluster	Go to Pinpoint Test A .
Incorrect fuel gauge indication	Circuitry Fuel level sensor Fuel pump module assembly Fuel tank Instrument cluster	Go to Pinpoint Test B .
Incorrect temperature gauge indication	Powertrain control module (PCM) Instrument cluster	Go to Pinpoint Test C .
The tachometer is inoperative	PCM Instrument cluster	Go to Pinpoint Test D .
The speedometer/odometer is inoperative	PCM Instrument cluster	Go to Pinpoint Test E .
The safety belt warning indicator is never/always on	Restraints control module (RCM) Instrument cluster	Go to Pinpoint Test F .
The check fuel cap indicator is never/always on (base instrument cluster)	PCM 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 Smart junction box (SJB) Instrument cluster	Go to Pinpoint Test H .
The brake warning indicator is always on	Circuitry Parking brake switch Brake fluid level switch SJB ABS module Instrument cluster	Go to Pinpoint Test I .
The high beam indicator is never/always on	High beam headlamps SJB Instrument cluster	Go to Pinpoint Test J .
The LH turn indicator is never/always on	LH turn signal lamps SJB Instrument cluster	Go to Pinpoint Test K .
The RH turn indicator is never/always on	RH turn signal lamps SJB Instrument cluster	Go to Pinpoint Test L .
The anti-lock brake system (ABS) warning indicator is never/always on	ABS module Instrument cluster	Go to Pinpoint Test M .
The low oil pressure warning indicator is never/always on	Circuitry Base engine concern Oil pressure switch Instrument cluster	Go to Pinpoint Test N .
The malfunction indicator lamp (MIL) indicator is never/always on	PCM Instrument cluster	Go to Pinpoint Test O .
The air bag indicator warning is never/always on	RCM Instrument cluster	Go to Pinpoint Test P .
The speed control indicator is never/always on	Speed control system PCM Instrument cluster	Go to Pinpoint Test Q .
The wrench warning indicator is never/always on (base instrument cluster)	Four wheel drive (4WD) system PCM Transmission Control Module (TCM) (4.6L engines) Instrument cluster	Go to Pinpoint Test R .
The door ajar indicator is never/always on	SJB Instrument cluster	Go to Pinpoint Test S .
The O/D OFF indicator is never/always on	PCM (4.0L engine) TCM (4.6L engine) Instrument cluster	Go to Pinpoint Test T .
The tire pressure monitoring system (TPMS) warning indicator is never/always on	TPMS concern SJB Instrument cluster	Go to Pinpoint Test U .
The 4x4 high indicator is never/always on	Four wheel drive (4WD) system 4WD control module Instrument cluster	Go to Pinpoint Test V .
The 4x4 low indicator is never/always on	4WD system 4WD control module Instrument cluster	Go to Pinpoint Test W .
The engine coolant over temperature warning indicator is never/always on (base instrument cluster)	PCM Instrument cluster	Go to Pinpoint Test X .
The traction control/stability assist indicator is never/always on	Traction control switch Traction control/stability assist system ABS module Instrument cluster	Go to Pinpoint Test Y .
The charging system warning indicator is never/always on (base instrument cluster)	Charging system PCM Instrument cluster	Go to Pinpoint Test Z .