Symptom Chart

WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

SYMPTOM CHART

Condition	Possible Sources	Action
The Parking Aid Module (PAM) does not respond to the scan tool	Fuse Wiring, terminals or connectors PAM	REFER to DIAGNOSIS AND TESTING .
The active park assist switch does not respond when pressed and the Instrument Cluster (IC) does not display the active park assist message in the Instrument Cluster (IC) message center	Wiring, terminals or connectors Active park assist switch PAM IC	GO to PINPOINT TEST A .
The active park assist switch status LED is inoperative/does not operate correctly	Wiring, terminals or connectors Active park assist switch PAM	GO to PINPOINT TEST G .
The Instrument Cluster (IC) message center displays an "ACTIVE PARK FAULT" message	Wiring, terminals or connectors Active park assist switch Active park assist sensor(s) PAM Power Steering Control Module (PSCM) ABS module PCM Transmission Control Module (TCM) (hybrid) IC	GO to PINPOINT TEST H .
The IC message center displays an "ACTIVE PARK NOT AVAILABLE" message	Any door or liftgate (with exception of the driver door) was ajar when the system was activated AdvanceTrac® was off when the system was activated An ABS event or AdvanceTrac® occurred at the same time that the system was activated	The active park assist system is not available if any door (except the driver door) is ajar, if the AdvanceTrac® is off, if an ABS event or AdvanceTrac® event occurred when the system is being activated. The system is operating correctly at this time.
The active park assist system does not position the vehicle correctly	Dirty or iced over active park assist sensor(s)	CLEAN the front bumper cover and active park assist sensors with high-pressure water.
	Active park assist sensor bezel(s) or active park assist sensor(s) locked into the front bumper incorrectly	REMOVE and correctly INSTALL the active park assist sensor(s) as necessary.
	Active park assist sensors are not aligned correctly	CARRY OUT Azimuth System Check .
	Active park assist sensors are affected by a sudden change in the outside air temperature	The temperature around the vehicle can change quickly, such as being parked in a heated garage and driven into the cold or just leaving a car wash. As a result, the outside air temperature displayed in the vehicle may not be close enough to the actual temperature. The active park assist system relies on correctly sensing the outside temperature to precisely position the vehicle. No action is required.
	The tires are not inflated to the correct pressure, the tires are not the same size or the tires are not OEM tire sizes being used	INSPECT the tires condition, pressure and size. A considerable worn tire positions the vehicle far from the curb. A larger size tire positions the vehicle closer to the curb. REPAIR or REPLACE tire(s) as necessary.
	The driver allowed the vehicle to roll in the opposite direction of the transmission, such as rolling forward when the reverse gear is selected	INFORM the customer not to allow the vehicle to roll in the opposite direction when operating the active park assist system. REFER to the Owner's Literature.
	An irregular curb is present along the parking space	The system may not be able to align the vehicle to curbs that are damaged, very shallow or covered by debris. If this is the circumstance, the system aligns the vehicle relative to the front bordering object.
	The vehicles or objects bordering the parking space are not positioned correctly	The system aligns the vehicle to the front vehicle or object when the system does not detect a curb
	One of the parked vehicles has a high attachment, such as a salt spreader or moving truck bed, that the sensors cannot detect	High attachments may not be detected by the system.
	The parking space length or parked objects position has changed after the vehicle has passed the parking space	The system scans the parking space as the vehicle is driven by the available spaces. Therefore, the system cannot detect if the parked vehicle or objects position has changed after the parking space has been scanned. No action needs to take place at this time.
	The steering system may not be able to fully support the steering wheel movement due to the power steering system overheating, battery voltage is out of range, the generator is damaged or there is an electrical system concern	REFER to DIAGNOSIS AND TESTING .
The active park assist system does not offer available parking spaces	The vehicle is being driven too close or too far from the adjacent vehicle and/or objects	The vehicle must be driven greater than 41 cm (16 in) and less than 150 cm (60 in) from the adjacent vehicle.
	The parking space available is to small	The active park assist system only allows available parking spaces that are larger than 1.2 times the size of the vehicle. The system is operating correctly at this time.
	There may not be enough room to maneuver the vehicle into the available space	There needs to be enough space on the opposite side of the vehicle to allow the front of the vehicle to swing out as the operator backs into the space.
	An obstruction may be covering the active park assist sensor(s)	INSPECT and CLEAN the active park assist sensor(s). REMOVE any obstruction that is covering the sensor (s).