Pinpoint Test O: B15F0:14, B15F0:15

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.

Refer to CRUISE CONTROL for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Cruise Control - Vehicles With: Adaptive Cruise Control With Lane Centering - System Operation and Component Description .

REFER to: Cruise Control - Vehicles With: Active Drive Assist/Intelligent Adaptive Cruise Control - System Operation and Component Description .

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
IPMA B15F0:14	Forward Sensing Module: Circuit Short To Ground Or Open	This DTC sets in continuous memory when the IPMA detects a short to ground or an open on the center front radar power circuit.
IPMA B15F0:15	Forward Sensing Module: Circuit Short To Battery Or Open	This DTC sets in continuous memory when the IPMA detects a short to voltage or an open on the center front radar power circuit.

Possible Sources

Wiring, terminals or connectors
CCM concern
IPMA concern

Visual Inspection and Pre-checks

NOTE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector.
NOTE: Loss of both ACC and AEBS.

O1 CHECK THE CENTER FRONT RADAR CIRCUITS FOR A SHORT TO VOLTAGE

Ignition OFF.

Disconnect IPMA C242B.

Disconnect CCM C1897.

Ignition ON.

Measure:

IPMA center front radar

Positive Lead	Measurement / Action	Negative Lead
C242B-18	Courtesy of FORD MOTOR COMPANY	Ground
C242B-9	Courtesy of FORD MOTOR COMPANY	Ground

Is any voltage present?

Yes	REPAIR the circuit.

GO to O2

O2 CHECK THE CENTER FRONT RADAR CIRCUITS FOR A SHORT TO GROUND

Ignition OFF.

Measure:

IPMA center front radar

Positive Lead	Measurement / Action	Negative Lead
C242B-18	Courtesy of FORD MOTOR COMPANY	Ground
C242B-9	Courtesy of FORD MOTOR COMPANY	Ground

Are the resistances less than 3 ohms?

Yes

GO to O3

No	REPAIR the circuit.

O3 CHECK THE CENTER FRONT RADAR CIRCUITS FOR AN OPEN

Measure:

IPMA center front radar

Positive Lead	Measurement / Action	Negative Lead
C242B-18	Courtesy of FORD MOTOR COMPANY	C1897-1
C242B-9	Courtesy of FORD MOTOR COMPANY	C1897-4

Are the resistances less than 3 ohms?

Yes

GO to O4

No	REPAIR the circuit.

O4 CHECK THE CENTER FRONT RADAR CIRCUITS FOR A SHORT TO EACH OTHER

Measure:

IPMA center front radar

Positive Lead	Measurement / Action	Negative Lead
C242B-18	Courtesy of FORD MOTOR COMPANY	C242B-9

Are the resistances greater than 10, 000 ohms?

Yes	INSTALL a new IPMA. GO to O5

No	REPAIR the circuit.

O5 CHECK FOR CORRECT IPMA (IMAGE PROCESSING MODULE A) OPERATION

Ignition OFF.

Disconnect and inspect all 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 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 module connections. ADDRESS the root cause of any connector or pin issues.