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Home >> Lincoln >> 2011 >> MKS AWD V6-3.5L Turbo >> Repair and Diagnosis >> Accessories and Optional Equipment >> Collision Avoidance and Parking Assist Systems >> Testing and Inspection >> Pinpoint Tests >> Parking Aid >> Pinpoint Test D: DTC B1B36:96, B1B38:96, B1B40:96, B1B42:96, B1B44:96, B1B46:96, B1B48:96 Or B1B50:96

Pinpoint Test D: DTC B1B36:96, B1B38:96, B1B40:96, B1B42:96, B1B44:96, B1B46:96, B1B48:96 Or B1B50:96




Parking Aid

Pinpoint Tests

Pinpoint Test D: DTC B1B36:96, B1B38:96, B1B40:96, B1B42:96, B1B44:96, B1B46:96, B1B48:96 Or B1B50:96

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

Normal Operation

The rear parking aid system is enabled when the vehicle ignition is in RUN and REVERSE (R) 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.

The front parking aid system is enabled when the vehicle ignition is in RUN and DRIVE (D) is selected. The PAM 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.

The attenuation time for the front and rear parking aid sensors is the time required for a sensor to detect the distance to a an object expressed in milliseconds (ms).





This pinpoint test is intended to diagnose the following:

- Parking aid sensor
- PAM

PINPOINT TEST D: DTC B1B36:96, B1B38:96, B1B40:96, B1B42:96, B1B44:96, B1B46:96, B1B48:96 OR B1B50:96

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D1 CHECK THE DTCs FROM BOTH THE CONTINUOUS AND ON-DEMAND PAM SELF-TESTS


- Check the PAM DTCs from the continuous and on-demand self-tests.
- Are parking aid DTCs other than B1B36:96, B1B38:96, B1B40:96, B1B42:96, B1B44:96, B1B46:96, B1B48:96 or B1B50:96 recorded?

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

No
GO to D2.

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D2 CHECK THE PARKING AID SENSOR OPERATION


NOTE: Make sure the area around the vehicle is clear of anything that might 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 Azimuth System Check.
- Carry out the elevation system check. Refer to Elevation System Check 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. TEST the system for normal operation.

No
For DTCs B1B44:96, B1B46:96, B1B48:96 and/or B1B50:96, GO to D3.

For DTCs B1B36:96, B1B38:96, B1B40:96 and/or B1B42:96, GO to D4.

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D3 CHECK THE REAR PARKING AID SENSOR DISTANCE PIDs


- 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 transaxle into REVERSE (R) 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 D6.

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D4 CHECK THE FRONT PARKING AID SENSOR DISTANCE PIDs


- 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 transaxle into DRIVE (D) 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 D6.

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D5 CHECK THE 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 D7.

No
GO to D6.

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D6 INSTALL A KNOWN GOOD SENSOR


- Install a known good sensor for the suspect parking aid sensor.
- 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 D7.

No
INSTALL a new parking aid sensor. REFER to Parking Aid Sensor - Front Parking Aid Sensor - Front or Parking Aid Sensor - Rear Parking Aid Sensor - Rear. CLEAR the DTCs. TEST the system for normal operation.

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D7 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) Service and Repair. 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.

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