Pinpoint Test F : C1008:93, C1009:93, C1B14:11, C1B14:12

WARNING: This page is about a different car, the 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

F1 CHECK THE HALL EFFECT POWER AND RETURN CIRCUITS BETWEEN THE PRB (POWER RUNNING BOARD) MOTORS FOR AN OPEN

Ignition OFF.

Disconnect LH PRB motor C3185.

Disconnect RH PRB motor C3186.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C3185-4	Courtesy of FORD MOTOR COMPANY	C3186-4
C3185-6	Courtesy of FORD MOTOR COMPANY	C3186-6

Are the resistances less than 3 ohms?

Yes

GO to F2

No	REPAIR the circuit.

F2 CHECK THE HALL-EFFECT SENSOR POWER AND RETURN CIRCUITS

NOTE: Use a meter with a min-max feature or recording capabilities to obtain accurate measurements. The RBM disables the voltage output immediately if the PRB motor is not present.

Ignition ON.

Make sure the PRB is set to AUTO in the vehicle message center.

Close all vehicle doors.

Connect the meter to the RH PRB motor electrical connector, harness side.

Connect the meter to the LH PRB motor electrical connector, harness side.

Set the meter to measure DC (direct current) voltage.

Set the meter range to greater than 15 volts.

Enable the min-max or recording feature on the meter.

NOTE: Make sure all test connections are made at the PRB motor before the door is opened.

Open any RH side door or LH side door.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C3186-4	Courtesy of FORD MOTOR COMPANY	C3186-6
C3185-4	Courtesy of FORD MOTOR COMPANY	C3185-6

Is the voltage between 7 and 10.5 volts?

Yes

GO to F7

No	If the voltage was less than 7 volts, GO to F3 If the voltage was greater than 10.5 volts, GO to F6

F3 CHECK HALL-EFFECT SENSOR POWER CIRCUIT FOR VOLTAGE

NOTE: Use a meter with a min-max feature or recording capabilities to obtain accurate measurements. The RBM disables the voltage output immediately if the PRB motor is not present.

Close all vehicle doors.

Connect the meter to the RH PRB motor electrical connector, harness side.

Connect the meter to the LH PRB motor electrical connector, harness side.

Set the meter to measure DC (direct current) voltage.

Set the meter range to greater than 15 volts.

Enable the min-max or recording feature on the meter.

NOTE: Make sure all test connections are made at the PRB motor before the door is opened.

Open any RH side door or LH side door.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C3186-4	Courtesy of FORD MOTOR COMPANY	Ground
C3185-4	Courtesy of FORD MOTOR COMPANY	Ground

Is the voltage between 7 and 10.5 volts?

Yes

GO to F5

GO to F4

F4 CHECK HALL-EFFECT SENSOR POWER CIRCUIT FOR AN OPEN OR SHORT TO GROUND

Ignition OFF.

Disconnect RBM C3313B.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C3186-4	Courtesy of FORD MOTOR COMPANY	C3313B-5
C3185-4	Courtesy of FORD MOTOR COMPANY	C3313B-5
C3186-4	Courtesy of FORD MOTOR COMPANY	Ground
C3185-4	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance less than 3 ohms between the PRB motor and the RBM module; and greater than 10, 000 ohms between the PRB motor and ground?

Yes

GO to F9

No	REPAIR the circuit.

F5 CHECK THE HALL-EFFECT SENSOR RETURN CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect RBM C3313B.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C3186-6	Courtesy of FORD MOTOR COMPANY	C3313B-14
C3185-6	Courtesy of FORD MOTOR COMPANY	C3313B-14

Is the resistance less than 3 ohms?

Yes

GO to F9

No	REPAIR the circuit.

F6 CHECK THE HALL-EFFECT SENSOR POWER CIRCUIT FOR A SHORT TO VOLTAGE

Ignition OFF.

Disconnect RBM C3313B.

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C3186-4	Courtesy of FORD MOTOR COMPANY	Ground
C3185-4	Courtesy of FORD MOTOR COMPANY	Ground

Is any voltage present?

Yes	REPAIR the circuit.

GO to F9

F7 CHECK THE HALL-EFFECT SENSOR SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE

Ignition OFF.

Disconnect RBM C3313B.

Ignition ON.

For DTC C1009:93 (RH side), measure:

Positive Lead	Measurement / Action	Negative Lead
C3186-5	Courtesy of FORD MOTOR COMPANY	Ground

For DTC C1008:93 (LH side), measure:

Positive Lead	Measurement / Action	Negative Lead
C3185-5	Courtesy of FORD MOTOR COMPANY	Ground

Is any voltage present?

Yes	REPAIR the circuit.

GO to F8

F8 CHECK THE HALL-EFFECT SENSOR SIGNAL CIRCUIT FOR AN OPEN OR SHORT TO GROUND

Ignition OFF.

For DTC C1009:93 (RH side), measure:

Positive Lead	Measurement / Action	Negative Lead
C3186-5	Courtesy of FORD MOTOR COMPANY	C3313B-10
C3186-5	Courtesy of FORD MOTOR COMPANY	Ground

For DTC C1008:93 (LH side), measure:

Positive Lead	Measurement / Action	Negative Lead
C3185-5	Courtesy of FORD MOTOR COMPANY	C3313B-9
C3185-5	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance less than 3 ohms between the PRB motor and RBM; and greater than 10, 000 ohms between the PRB motor and ground?

Yes	For DTC C1009:93, REPLACE the RH PRB motor. REFER to: Power Running Board (PRB) Motor . For DTC C1008:93, REPLACE the LH PRB motor. REFER to: Power Running Board (PRB) Motor .

No	REPAIR the circuit.

F9 CHECK THE RBM (RUNNING BOARD CONTROL MODULE) FOR CORRECT OPERATION

Ignition OFF.

Disconnect All PRB system and related in-line connectors.

Check for:
- corrosion - install new connector or terminals and clean module pins
- damaged or bent pins - install new terminals or pins
- pushed-out pins - install new pins as necessary

Connect all PRB system and related in-line connectors and make sure they seat correctly.

Operate the system and verify the concern is still present.

Is the concern still present?

Yes	CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new RBM. REFER to: Running Board Control Module (RBM) .

No	The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.