Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSFORD2009RANGER 2D PICKUP, 2.3 D, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 113 (INFORMATION SYSTEM AND ENTERTAINMENT SYSTEMS)DIAGNOSTIC TESTSINFORMATION & ENTERTAINMENT SYSTEMSYMPTOM CHART

2009 Ford Ranger 2D Pickup, 2.3 D, Automatic

Symptom Chart

2009 Ford Ranger 2D Pickup, 2.3 D, AutomaticSECTION Symptom Chart

WARNING: This page is about a different car, the 2008 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: For the CD6 audio unit, the audio unit must be placed in shipment mode before removal. Refer to Audio Unit Shipment Mode . Failure to follow this instruction may result in damage to the audio unit.

Symptom Chart

Condition	Possible Sources	Action
The audio unit is inoperative/does not operate correctly	Fuse Wiring, terminals or connectors Audio unit	Go to Pinpoint Test A .
The satellite audio is inoperative/does not operate correctly	Wiring, terminals or connectors Satellite radio receiver Audio unit	Go to Pinpoint Test G .
The audio unit display is blank - audio unit operates	Audio unit	INSTALL a new audio unit. REFER to Audio Unit . TEST the system for normal operation.
The audio unit backlighting is inoperative - all other instrument panel lighting functions are normal	Wiring, terminals or connectors Audio unit	REFER to INSTRUMENT CLUSTER & PANEL ILLUMINATION article to continue diagnosis of an individual illumination source inoperative.
Poor reception - AM/FM	Antenna Antenna cable Noise suppression equipment Radio ignition interference capacitor Ignition system Charging system Audio unit	Go to Pinpoint Test B .
Poor reception - satellite audio	Obstructions to the line of sight	DRIVE the vehicle to an open area and TEST the reception. If the reception is OK, INFORM the customer that the satellite signal can be affected by obstructions to the satellite antenna line of sight. If the reception is not OK, go to Pinpoint Test F .
	Satellite radio antenna Satellite radio antenna cable Satellite radio receiver	Go to Pinpoint Test B .
Continuous seek/scan in AM/FM	RDS function setting	VERIFY the RDS is set to ALL. REFER to the Owner's Literature. SCAN for a good channel. If a good channel is found, the cause of the concern was that no RDS channel in the selected category was found. The system is OK. If a good channel is not found, go to Pinpoint Test B .
	Antenna cable(s) Noise suppression equipment Antenna Audio unit	Go to Pinpoint Test B .
Poor quality/distorted/no sound from one or more speakers (not all speakers)	Wiring, terminals or connectors Speaker Audio unit	Go to Pinpoint Test C .
Poor quality/distorted/no sound from all speakers	Wiring, terminals or connectors Audio unit	With the key in any position except START, MEASURE the voltage between the audio unit C290a-3, circuit CBP22 (GN/OG), harness side and ground. If any voltage is present, REPAIR the circuit. TEST the system for normal operation. If no voltage is present, SEND the audio unit to an authorized audio system repair facility. TEST the system for normal operation after the repair.
The subwoofer is inoperative/does not operate correctly	Fuse Wiring, terminals or connectors Subwoofer speaker Subwoofer amplifier Audio unit	Go to Pinpoint Test D .
Loud popping sound when cycling the ignition switch - Audiophile	Fuse Wiring, terminals or connectors Subwoofer amplifier Audio unit	Go to Pinpoint Test E .
The audio input jack is inoperative/does not operate correctly - audio units with external audio input jack	Wiring, terminals or connectors Audio input jack Audio unit	NOTE: Make sure the portable MP3 device is functioning correctly and that the MP3 device is connected correctly before diagnosing the audio input jack. Go to Pinpoint Test H .
The audio input jack is inoperative/does not operate correctly - audio units with integral audio input jack	Audio unit	NOTE: Make sure the portable MP3 device is functioning correctly and that the MP3 device is connected correctly before diagnosing the audio input jack. INSTALL a new audio unit. REFER to Audio Unit . TEST the system for normal operation.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.