PINPOINT TEST D: DTCs C1699, C1702, C1705 AND C1708 PARKING AID SENSOR CIRCUIT SHORT TO BATTERY

WARNING: This page is about a different car, the 2006 Mercury Montego, 2006 Ford Freestyle, and 2006 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.

D1 CHECK THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCs) FROM BOTH THE CONTINUOUS AND ON-DEMAND PARKING AID MODULE SELF-TESTS
- Check the recorded parking aid module DTCs from the continuous and on-demand self-tests.
- Are multiple DTCs recorded?
Yes : GO to D2.

No : For DTCs, C1699, C1702, C1705 or C1708, GO to D3.

For all others, REFER to the PARKING AID MODULE DIAGNOSTIC TROUBLE CODE (DTC) INDEX .
D2 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 D3.

No: REPAIR or INSTALL a new bumper wiring harness. CLEAR the DTCs. REPEAT the self-test.

D3 CHECK THE SENSOR CIRCUITRY FOR SHORTS TO VOLTAGE

Key in OFF position.
Disconnect: Suspect Parking Aid Sensor.
Disconnect: Parking Aid Module C3267.
Key in ON position.
Measure the voltage between the suspect parking aid sensor pin 2, harness side and ground as follows:

Rear Sensors

REAR SENSORS REFERENCE

DTC	Sensor	Sensor Connector - Pin	Circuit
C1699	LH Outer	C4009-2	1441 (WH/LG)
C1702	RH Outer	C4011-2	1444 (DB/YE)
C1705	LH Inner	C4010-2	1442 (DG/WH)
C1708	RH Inner	C4012-2	1443 (WH/LB)

Fig 1: Measuring Voltage Between Suspect Parking Aid Sensor Pin 2, Harness Side & Ground

Courtesy of FORD MOTOR CO.

Is any voltage present?

Yes: REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test.

No: GO to D4.

D4 CHECK THE PARKING AID SENSORS
- Install a known good parking aid sensor(s) for each of the suspect parking aid sensor(s).
- Clear all the DTCs.
- Test the system for normal operation.
- Is the concern still present?
Yes: GO to D5.

No: INSTALL a new parking aid sensor. REFER to PARKING AID SENSOR . CLEAR the DTCs. REPEAT the self-test.
D5 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?
Yes: INSTALL a new parking aid module. REFER to PARKING AID MODULE . 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. REPEAT the self-test.