Pinpoint Test D: DTCs C1701, C1704, C1707 And C1710
Parking Aid
Pinpoint Tests
Pinpoint Test D: DTCs C1701, C1704, C1707 And C1710
Normal Operation
The parking aid system is enabled when the ignition switch is in the RUN position and REVERSE (R) gear is selected. The Parking Aid Module (PAM) calculates the distance to an object using 4 ultrasonic sensors mounted in the rear bumper. The parking aid sensors can detect obstructions in the path behind the vehicle. A 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
PINPOINT TEST D: DTCs C1701, C1704, C1707 AND C1710
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D1 RETRIEVE THE RECORDED DTCs FROM BOTH THE CONTINUOUS AND ON-DEMAND PAM SELF-TESTS
- Retrieve the recorded PAM DTCs from the continuous and on-demand self-tests.
- Are parking aid DTCs other than C1701, C1704, C1707 or C1710 recorded?
Yes
DIAGNOSE the other DTCs first. REFER to DTC Charts. Diagnostic Trouble Code Tests and Associated Procedures
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 rear 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
GO to D3.
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D3 CHECK THE 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 transmission into reverse and monitor the parking aid sensors distance PIDs LRI_DIST, LRO_DIST, RRI_DIST and RRO_DIST. The PIDs read 255 cm (8.4 ft) on a correctly functioning sensor.
- Does each PID read 255 cm (8.4 ft)?
Yes
GO to D4.
No
GO to D5.
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D4 INSTALL A KNOWN GOOD SENSOR
- Ignition OFF.
- 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 D5.
No
INSTALL a new parking aid sensor. REFER to Parking Aid Sensor Service and Repair. CLEAR the DTCs. TEST the system for normal operation.
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D5 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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