Pinpoint Test C: DTCS C1700, C1703, C1706, C1709 Parking Aid Sensor Circuit Failure And B1299 Power Supply Sensor Circuit Short To Ground

WARNING: This page is about a different car, the 2005 Ford Pickup, 2005 Ford F550 Super Duty, 2005 Ford F450 Super Duty, and 2005 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

C1 RETRIEVE THE RECORDED DTCS FROM BOTH THE CONTINUOUS AND ON-DEMAND PARKING AID MODULE SELF-TESTS
- Retrieve the recorded parking aid module DTCs from the continuous and on-demand self-tests.
- Are any DTCs recorded?
1. Yes : If multiple DTCs are recorded, GO to C2.
  For DTCs C1700, C1703, C1706 or C1709, GO to C3.
  
  For DTC B1299, GO to C4.
  
  All others, REFER to the PARKING AID MODULE DIAGNOSTIC TROUBLE CODE (DTC) INDEX .
2. No : GO to PINPOINT TEST B .
C2 CHECK THE BUMPER WIRING HARNESS
- Inspect the bumper wiring harness for opens, shorts, grounds, or corrosion.
- Is the bumper harness OK?
1. Yes : GO to C3.
2. No : REPAIR or INSTALL a new bumper wiring harness. REPEAT the self-test.

C3 CHECK THE SENSOR CIRCUITRY FOR OPENS

Key in OFF position.
Disconnect: Suspect Parking Aid Sensor.
Disconnect: Parking Aid Module C4014.

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

REAR SENSORS

DTC	Sensor	Parking Aid Module Connector (Pin)	Sensor Connector (Pin)	Circuit
C1700	LH Outer	C4014 (15)	C4009 (1)	1439 (BN/PK)
C1700	LH Outer	C4014 (11)	C4009 (2)	1441 (WH/LG)
C1700	LH Outer	C4014 (23)	C4009 (3)	1440 (DG/YE)
C1703	RH Outer	C4014 (15)	C4011 (1)	1439 (BN/PK)
C1703	RH Outer	C4014 (24)	C4011 (2)	1444 (DB/YE)
C1703	RH Outer	C4014 (16)	C4011 (3)	1440 (DG/YE)
C1706	LH Inner	C4014 (15)	C4010 (1)	1439 (BN/PK)
C1706	LH Inner	C4014 (10)	C4010 (2)	1442 (DG/WH)
C1706	LH Inner	C4014 (16)	C4010 (3)	1440 (DG/YE)
C1709	RH Inner	C4014 (15)	C4012 (1)	1439 (BN/PK)
C1709	RH Inner	C4014 (23)	C4012 (2)	1443 (WH/LB)
C1709	RH Inner	C4014 (16)	C4012 (3)	1440 (DG/YE)

Are the resistances less than 5 ohms?

Yes : GO to C4.
No : REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test.

C4 CHECK THE SENSOR CIRCUITRY FOR SHORTS TO GROUND

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

REAR SENSORS

DTC	Sensor	Sensor Connector (Pin)	Circuit
C1700 or B1299	LH Outer	C4009 (1)	1439 (BN/PK)
C1700	LH Outer	C4009 (2)	1441 (WH/LG)
C1700	LH Outer	C4009 (3)	1440 (DG/YE)
C1703 or B1299	RH Outer	C4011 (1)	1439 (BN/PK)
C1703	RH Outer	C4011 (2)	1444 (DB/YE)
C1703	RH Outer	C4011 (3)	1440 (DG/YE)
C1706 or B1299	LH Inner	C4010 (1)	1439 (BN/PK)
C1706	LH Inner	C4010 (2)	1442 (DG/WH)
C1706	LH Inner	C4010 (3)	1440 (DG/YE)
C1709 or B1299	RH Inner	C4012 (1)	1439 (BN/PK)
C1709	RH Inner	C4012 (2)	1443 (WH/LB)
C1709	RH Inner	C4012 (3)	1440 (DG/YE)

Is the resistance greater than 10,000 ohms?

Yes : If all of the parking aid sensors recorded DTCs, GO to C5.
If one or more parking aid sensors recorded DTCs, INSTALL a new sensor(s) for the one in question. REFER to PARKING AID SENSOR . TEST the system for normal operation.
No : REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test.

C5 CHECK FOR CORRECT PARKING AID MODULE OPERATION
- Disconnect the parking aid module connector.
- Check for:
  - corrosion
  - pushed-out pins
- Connect the parking aid module connector and make sure it seats correctly.
- Operate the system and determine if the concern is still present.
- Is the concern still present?
1. Yes : INSTALL a new parking aid module. REFER to PARKING AID MODULE . REPEAT the self-test.
2. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.