PINPOINT TEST B: DTCs C1700, C1703, C1706 AND C1709

WARNING: This page is about a different car, the 2010 Lincoln MKX and 2010 Ford Edge. 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.

B1 RETRIEVE THE DTCs FROM THE PAM SELF-TEST
- Check the PAM DTCs from the self-test.
- Are multiple DTCs recorded?
- Yes: GO to B2 .
- No: For DTCs C1700, C1703, C1706 and C1709, GO to B3.
  For all other DTCs, REFER to DTC CHARTS .
B2 CHECK THE BUMPER WIRING HARNESS
- Inspect the bumper wiring harness for opens, shorts, grounds, or corrosion.
- Is the bumper wiring harness OK?
- Yes: GO to B3 .
- No: REPAIR or INSTALL a new bumper wiring harness. CLEAR the DTCs. TEST the system for normal operation.

B3 CHECK THE SENSOR CIRCUITRY FOR OPENS

Ignition OFF.
Disconnect: Suspect Parking Aid Sensors C4009, C4010, C4011 and C4012.
Disconnect: PAM C4014.

Measure the resistance between the PAM C4014, harness side and the suspect parking aid sensor, harness side as follows:

CONNECTOR REFERENCE

DTC	Rear Sensor	PAM Connector-Pin	Sensor Connector-Pin	Circuit
C1700	LH outer	C4014-9	C4009-1	LMP07 (BU/WH)
C1700	LH outer	C4014-15	C4009-2	VMP15 (YE/GN)
C1700	LH outer	C4014-12	C4009-3	RMP07 (GN/WH)
C1703	RH outer	C4014-9	C4011-1	LMP07 (BU/WH)
C1703	RH outer	C4014-16	C4011-2	VMP17 (YE/OG)
C1703	RH outer	C4014-12	C4011-3	RMP07 (GN/WH)
C1706	LH inner	C4014-9	C4010-1	LMP07 (BU/WH)
C1706	LH inner	C4014-14	C4010-2	VMP14 (WH/OG)
C1706	LH inner	C4014-12	C4010-3	RMP07 (GN/WH)
C1709	RH inner	C4014-9	C4012-1	LMP07 (BU/WH)
C1709	RH inner	C4014-13	C4012-2	VMP16 (YE/GY)
C1709	RH inner	C4014-12	C4012-3	RMP07 (GN/WH)

Fig 1: Measuring Resistance Between PAM C4014, Harness Side And Parking Aid Sensor, Harness Side

Courtesy of FORD MOTOR CO.

Are the resistances less than 5 ohms?

Yes: GO to B4 .
No: REPAIR the circuit in question. CLEAR the DTCs. TEST the system for normal operation.

B4 CHECK THE SENSOR CIRCUITRY FOR SHORTS TO GROUND

Measure the resistance between the suspect parking aid sensor, harness side and ground as follows:

CONNECTOR REFERENCE

DTC	Rear Sensor	Connector-Pin	Circuit
C1700	LH outer	C4009-2	VMP15 (YE/GN)
C1703	RH outer	C4011-2	VMP17 (YE/OG)
C1706	LH inner	C4010-2	VMP14 (WH/OG)
C1709	RH inner	C4012-2	VMP16 (YE/GY)

Fig 2: Measuring Resistance Between Parking Aid Sensor, Harness Side And Ground

Courtesy of FORD MOTOR CO.

Is the resistance greater than 10,000 ohms?

Yes: If all of the parking aid sensors recorded DTCs, GO to B5 .
If one or more parking aid sensor(s) recorded DTCs, INSTALL a new sensor(s) for the one in question. REFER to PARKING AID SENSOR . CLEAR the DTCs. TEST the system for normal operation.
No: REPAIR the circuit in question. CLEAR the DTCs. TEST the system for normal operation.

B5 CHECK FOR CORRECT PAM OPERATION
- Disconnect the PAM connector.
- Check for:
  - corrosion
  - damaged pins
  - pushed-out pins
- Connect the PAM connector and make sure it seats correctly.
- Operate the system and determine if the concern is still present.
- Is the concern still present?
- Yes: INSTALL a new PAM . REFER to PARKING AID MODULE (PAM) . TEST the system for normal operation.
- No: The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. TEST the system for normal operation.