C1701

Parking Aid

Pinpoint Test D: DTC C1701, C1704, C1707, C1710, C1713, C1716, C1719 or C1741

Refer to Wiring Diagram Set 131, Parking Aid for schematic and connector information Electrical Diagrams.

Normal Operation - Rear Parking Aid System

The rear parking aid system is enabled when the vehicle ignition is in RUN and reverse is selected. The Parking Aid Module (PAM) calculates the distance to an object by the use of 4 ultrasonic sensors mounted in the rear bumper. The parking aid sensors can detect obstructions in the path behind the vehicle. A low pitch variable rate warning tone is generated from a parking aid speaker. The parking aid speaker increases the warning tone rate as the vehicle gets closer to an obstacle.

Normal Operation - Front Parking Aid System

The front parking aid system is enabled when the vehicle ignition is in RUN and drive is selected. The PAM (Parking Aid Module) calculates the distance to an object by the use of 4 ultrasonic sensors mounted in the front bumper. The parking aid sensors can detect obstructions in the front of the vehicle. A high pitch variable rate warning tone is generated from a parking aid speaker. The parking aid speaker increases the warning tone rate as the vehicle gets closer to an obstacle.





This pinpoint test is intended to diagnose the following:

- Parking aid sensor

- PAM (Parking Aid Module)

PINPOINT TEST D : DTC C1701, C1704, C1707, C1710, C1713, C1716, C1719 OR C1741

D1 CHECK FOR RECORDED PAM (Parking Aid Module) DTCs FROM THE SELF-TEST

- Check the PAM (Parking Aid Module) DTCs from the self-test.

Are parking aid DTCs other than C1701, C1704, C1707, C1710, C1713, C1716, C1719 or C1741 recorded?

Yes
DIAGNOSE the other DTCs first. REFER to DTC Charts. Parking Aid

No
GO to D2.

D2 CHECK THE PARKING AID SENSOR OPERATION

NOTE: Make sure the area around the vehicle is clear of anything that may activate the parking aid system.

- Clean the bumper and sensors with high-pressure water.

- Carry out the azimuth system check. Refer to Azimuth System Check .

- Carry out the elevation system check. Refer to Elevation System Check .

Does the parking aid system pass both system checks?

Yes
The system is operating correctly at this time. The concern may have been caused by a dirty or blocked parking aid sensor. CLEAR the DTCs. REPEAT the self-test.

No
For DTCs C1701, C1704, C1707 and/or C1710, GO to D3.

For DTCs C1713, C1716, C1719 and/or C1741, GO to D4.

D3 CHECK THE REAR PARKING AID SENSOR DISTANCE PID

- Make sure the suspect parking aid sensor(s) is flush-mounted in the bezel.

- Ignition ON.

- Enter the following diagnostic mode on the scan tool: Parking Aid PID.

- With the brake pedal applied, shift the transmission into reverse and monitor the parking aid sensor distance PID. The PID reads 255 cm (8.4 ft) on a correctly functioning sensor.

Does the PID read 255 cm (8.4 ft)?

Yes
GO to D5.

No
GO to D7.

D4 CHECK THE FRONT PARKING AID SENSOR DISTANCE PID

- Make sure the suspect parking aid sensor(s) is flush-mounted in the bezel.

- Ignition ON.

- Enter the following diagnostic mode on the scan tool: Parking Aid PID.

- With the brake pedal applied, shift the transmission into drive and monitor the parking aid sensor distance PID. The PID reads 255 cm (8.4 ft) on a correctly functioning sensor.

Does the PID read 255 cm (8.4 ft)?

Yes
GO to D6.

No
GO to D8.

D5 CHECK THE REAR PARKING AID SENSOR ATTENUATION PIDs

- Check the parking aid sensor attenuation PIDs.

Do all of the attenuation PIDs read between 0 and 16 ms?

Yes
GO to D9.

No
GO to D7.

D6 CHECK THE FRONT PARKING AID SENSOR ATTENUATION PIDs

- Check the parking aid sensor attenuation PIDs.

Do all of the attenuation PIDs read between 0 and 16 ms?

Yes
GO to D9.

No
GO to D8.

D7 INSTALL A KNOWN GOOD PARKING AID SENSOR - REAR

- Ignition OFF.

- Install a new sensor for the suspect parking aid sensor. Refer to Parking Aid Sensor- Rear .

- Ignition ON.

- Clear the DTCs. Repeat the self-test. Operate the system and verify the concern is still present.

Is the concern still present?

Yes
GO to D9.

No
The cause of the concern was an inoperative parking aid sensor. The system is now operating correctly.

D8 INSTALL A KNOWN GOOD PARKING AID SENSOR - FRONT

- Ignition OFF.

- Install a new sensor for the suspect parking aid sensor. Refer to Parking Aid Sensor- Front .

- Ignition ON.

- Clear the DTCs. Repeat the self-test. Operate the system and verify the concern is still present.

Is the concern still present?

Yes
GO to D9.

No
The cause of the concern was an inoperative parking aid sensor. The system is now operating correctly.

D9 CHECK FOR CORRECT PAM (Parking Aid Module) OPERATION

- Disconnect the PAM (Parking Aid Module) connector.

- Check for:
- correct connector seating and latching

- corrosion

- damaged pins

- pushed-out pins


- Connect the PAM (Parking Aid Module) connector and make sure it seats and latches correctly.

- Operate the system and verify the concern is still present.

Is the concern still present?

Yes
INSTALL a new PAM (Parking Aid Module). 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. REPEAT the self-test.