Pinpoint Test AZ: C1001:31

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.

Normal Operation and Fault Conditions

REFER to: Lane Keeping System - System Operation and Component Description .

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
IPMA C1001:31	Vision System Camera: No Signal	This continuous memory and on-demand DTC set in the IPMA when an internal fault is detected in the IPMA camera.

Possible Sources

IPMA camera
IPMA

AZ1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE IPMA (IMAGE PROCESSING MODULE A) SELF-TEST
- Ignition ON.
- Using the diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).
- Wait 10 seconds.
- Using the diagnostic scan tool, carry out the IPMA self-test.
Is DTC C1001:31 retrieved?

Yes GO to AZ2

No The system is operating correctly at this time.

AZ2 CHECK THE IPMA (IMAGE PROCESSING MODULE A) CAMERA CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.

Disconnect: IPMA connector C242F.

For IPMA and IPMA camera measure:

Positive Lead	Measurement / Action	Negative Lead
C242F-3	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance on the suspect circuit greater than 10, 000 ohms?

Yes

GO to AZ3

No	REPAIR the suspect circuit.

AZ3 CHECK THE IPMA (IMAGE PROCESSING MODULE A) CAMERA CIRCUIT FOR A SHORT TO VOLTAGE

Ignition OFF.

Disconnect: IPMA connector C242F.

Positive Lead	Measurement / Action	Negative Lead
C242F-3	Courtesy of FORD MOTOR COMPANY	Ground

Is the voltage present?

Yes	REPAIR the suspect circuit.

GO to AZ4

AZ4 CHECK THE IPMA (IMAGE PROCESSING MODULE A) CAMERA CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C242F-3	Courtesy of FORD MOTOR COMPANY	C9128-1

Is the resistance on the suspect circuit less than 3 ohms?

Yes	REPLACE IPMA camera. REFER to: Image Processing Module A (IPMA) Camera .

No	The system is operating correctly at this time.