Pinpoint Test I: Poor Image Quality - Vehicles With IPMA (Image Processing Module A)

WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Before disconnecting any of the cameras, verify the connectors are properly seated and latched.

Refer to PARKING AID for schematic and connector information.

Normal Operation and Fault Conditions

The video signals are transmitted from each camera to the IPMA on a coaxial cable. The IPMA processes the image data and sends a single video image to the APIM via coaxial cable. REFER to: Parking Aid - System Operation and Component Description .

Possible Sources
- Dirty or scratched camera lens
- Fuse
- Wiring, terminals or connectors
- Coaxial cable
- Camera
- IPMA
- APIM concern
Visual Inspection and Pre-checks
- Inspect the camera lenses for damage, dirt, debris and scratches.

I1 INSPECT THE CAMERA IMAGES

Ignition ON.

Press the camera selection switch.

Courtesy of FORD MOTOR COMPANY

Inspect the image(s) to determine which camera is/are affected.

1 - Front camera
2 - LH side camera
3 - RH side camera
4 - Rear camera

Does the poor image quality affect more than one camera image?

Yes	GO to Pinpoint Test H

No	* For a front camera concern, GO to I2* For a rear camera concern, GO to I6* For a LH side camera concern, GO to I10* For a RH side camera concern, GO to I14

I2 CHECK THE FRONT CAMERA COAXIAL CABLE CORE AND SHIELD FOR A SHORT TO VOLTAGE

Ignition OFF.

Disconnect IPMA C242E.

Disconnect Front parking aid camera C1663.

Ignition ON.

Measure VDC:

Positive Lead	Measurement / Action	Negative Lead
C242E-1 coaxial cable core	Courtesy of FORD MOTOR COMPANY	Ground
C242E-1 coaxial cable shield	Courtesy of FORD MOTOR COMPANY	Ground

Is any DC voltage present?

Yes	REPLACE the affected coaxial cable.

GO to I3

I3 CHECK THE FRONT CAMERA COAXIAL CABLE CORE FOR A SHORT TO GROUND

Ignition OFF.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C242E-1 coaxial cable core	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10, 000 ohms?

Yes

GO to I4

No	REPLACE the affected coaxial cable.

I4 CHECK THE FRONT CAMERA COAXIAL CABLE CORE AND SHIELD FOR AN OPEN

Measure:

Positive Lead	Measurement / Action	Negative Lead
C242E-1 coaxial cable core	Courtesy of FORD MOTOR COMPANY	C1663-1 coaxial cable core
C242E-1 coaxial cable shield	Courtesy of FORD MOTOR COMPANY	C1663-1 coaxial cable shield

Are the resistances less than 3 ohms?

Yes

GO to I5

No	REPLACE the affected coaxial cable.

I5 CHECK THE FRONT CAMERA COAXIAL CABLE CORE AND SHIELD FOR A SHORT TOGETHER

Measure:

Positive Lead	Measurement / Action	Negative Lead
C242E-1 coaxial cable core	Courtesy of FORD MOTOR COMPANY	C242E-1 coaxial cable shield

Is the resistance greater than 10, 000 ohms?

Yes	INSTALL a new front parking aid camera. REFER to: Front Parking Aid Camera . If the concern is still present after camera replacement, GO to I18

No	REPLACE the affected coaxial cable.

I6 CHECK THE REAR CAMERA COAXIAL CABLE CORE AND SHIELD FOR A SHORT TO VOLTAGE

Ignition OFF.

Disconnect IPMA C242E.

Disconnect Rear parking aid camera C4357.

Ignition ON.

Measure VDC:

Positive Lead	Measurement / Action	Negative Lead
C242E-2 coaxial cable core	Courtesy of FORD MOTOR COMPANY	Ground
C242E-2 coaxial cable shield	Courtesy of FORD MOTOR COMPANY	Ground

Is any DC voltage present?

Yes	REPLACE the affected coaxial cable.

GO to I7

I7 CHECK THE REAR CAMERA COAXIAL CABLE CORE FOR A SHORT TO GROUND

Ignition OFF.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C242E-2 coaxial cable core	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10, 000 ohms?

Yes

GO to I8

No	REPLACE the affected coaxial cable.

I8 CHECK THE REAR CAMERA COAXIAL CABLE CORE AND SHIELD FOR AN OPEN

Measure:

Positive Lead	Measurement / Action	Negative Lead
C242E-2 coaxial cable core	Courtesy of FORD MOTOR COMPANY	C4357-1 coaxial cable core
C242E-2 coaxial cable shield	Courtesy of FORD MOTOR COMPANY	C4357-1 coaxial cable shield

Are the resistances less than 3 ohms?

Yes

GO to I9

No	REPLACE the affected coaxial cable.

I9 CHECK THE REAR CAMERA COAXIAL CABLE CORE AND SHIELD FOR A SHORT TOGETHER

Measure:

Positive Lead	Measurement / Action	Negative Lead
C242E-2 coaxial cable core	Courtesy of FORD MOTOR COMPANY	C242E-2 coaxial cable shield

Is the resistance greater than 10, 000 ohms?

Yes	INSTALL a new rear parking aid camera. REFER to: Rear Parking Aid Camera . If the concern is still present after camera replacement, GO to I18

No	REPLACE the affected coaxial cable.

I10 CHECK THE LH (LEFT-HAND) SIDE CAMERA COAXIAL CABLE CORE AND SHIELD FOR A SHORT TO VOLTAGE

Ignition OFF.

Disconnect IPMA C242E.

Disconnect LH side camera C5104.

Ignition ON.

Measure VDC:

Positive Lead	Measurement / Action	Negative Lead
C242E-3 coaxial cable core	Courtesy of FORD MOTOR COMPANY	Ground
C242E-3 coaxial cable shield	Courtesy of FORD MOTOR COMPANY	Ground

Is any DC voltage present?

Yes	REPLACE the affected coaxial cable.

GO to I11

I11 CHECK THE LH (LEFT-HAND) SIDE CAMERA COAXIAL CABLE CORE FOR A SHORT TO GROUND

Ignition OFF.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C242E-3 coaxial cable core	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10, 000 ohms?

Yes

GO to I12

No	REPLACE the affected coaxial cable.

I12 CHECK THE LH (LEFT-HAND) SIDE CAMERA COAXIAL CABLE CORE AND SHIELD FOR AN OPEN

Measure:

Positive Lead	Measurement / Action	Negative Lead
C242E-3 coaxial cable core	Courtesy of FORD MOTOR COMPANY	C5104-1 coaxial cable core
C242E-3 coaxial cable shield	Courtesy of FORD MOTOR COMPANY	C5104-1 coaxial cable shield

Are the resistances less than 3 ohms?

Yes

GO to I13

No	REPLACE the affected coaxial cable.

I13 CHECK THE LH (LEFT-HAND) SIDE CAMERA COAXIAL CABLE CORE AND SHIELD FOR A SHORT TOGETHER

Measure:

Positive Lead	Measurement / Action	Negative Lead
C242E-3 coaxial cable core	Courtesy of FORD MOTOR COMPANY	C242E-3 coaxial cable shield

Is the resistance greater than 10, 000 ohms?

Yes	INSTALL a new LH side camera. REFER to: Side Parking Aid Camera . If the concern is still present after camera replacement, GO to I18

No	REPLACE the affected coaxial cable.

I14 CHECK THE RH (RIGHT-HAND) SIDE CAMERA COAXIAL CABLE CORE AND SHIELD FOR A SHORT TO VOLTAGE

Ignition OFF.

Disconnect IPMA C242E.

Disconnect RH side parking aid camera C6104.

Ignition ON.

Measure VDC:

Positive Lead	Measurement / Action	Negative Lead
C242E-4 coaxial cable core	Courtesy of FORD MOTOR COMPANY	Ground
C242E-4 coaxial cable shield	Courtesy of FORD MOTOR COMPANY	Ground

Is any DC voltage present?

Yes	REPLACE the affected coaxial cable.

GO to I15

I15 CHECK THE RH (RIGHT-HAND) SIDE CAMERA COAXIAL CABLE CORE FOR A SHORT TO GROUND

Ignition OFF.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C242E-4 coaxial cable core	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10, 000 ohms?

Yes

GO to I16

No	REPLACE the affected coaxial cable.

I16 CHECK THE RH (RIGHT-HAND) SIDE CAMERA COAXIAL CABLE CORE AND SHIELD FOR AN OPEN

Measure:

Positive Lead	Measurement / Action	Negative Lead
C242E-4 coaxial cable core	Courtesy of FORD MOTOR COMPANY	C6104-1 coaxial cable core
C242E-4 coaxial cable shield	Courtesy of FORD MOTOR COMPANY	C6104-1 coaxial cable shield

Are the resistances less than 3 ohms?

Yes

GO to I17

No	REPLACE the affected coaxial cable.

I17 CHECK THE RH (RIGHT-HAND) SIDE CAMERA COAXIAL CABLE CORE AND SHIELD FOR A SHORT TOGETHER

Measure:

Positive Lead	Measurement / Action	Negative Lead
C242E-4 coaxial cable core	Courtesy of FORD MOTOR COMPANY	C242E-4 coaxial cable shield

Is the resistance greater than 10, 000 ohms?

Yes	INSTALL a new RH side camera. REFER to: Side Parking Aid Camera . If the concern is still present after camera replacement, GO to I18

No	REPLACE the affected coaxial cable.

I18 CHECK FOR CORRECT IPMA (IMAGE PROCESSING MODULE A) OPERATION

Ignition OFF.

Disconnect and inspect the IPMA connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the IPMA connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes	CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new IPMA. REFER to: Image Processing Module A (IPMA) .

No	The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.