Pinpoint Test F: DTC U2473

Parking Aid - Explorer

Pinpoint Tests

Pinpoint Test F: DTC U2473

Normal Operation

The Parking Aid Module (PAM) receives the vehicle speed from the Instrument Cluster (IC) as a gateway message from the PCM.

- DTC U2473 (Unexpected Vehicle Speed (VSS)) - a continuous and on-demand DTC that sets when the PAM receives an unknown vehicle speed message.

This pinpoint test is intended to diagnose the following:

- IC fault
- Network data fault



PINPOINT TEST F: DTC U2473

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F1 CHECK THE DTCs FROM THE PAM ON-DEMAND SELF-TEST


- Enter the following diagnostic mode on the scan tool: PAM Self-Test.
- Check the recorded results from the PAM self-test.
- Is DTC U0155 recorded?

Yes
REFER to Information Bus.

No
GO to F2.

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F2 CHECK THE SPEEDOMETER OPERATION


- Observe the speedometer operation while test driving the vehicle.
- Does the speedometer operate correctly?

Yes
GO to F3.

No
REFER to Instrument Panel, Gauges and Warning Indicators.

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F3 CHECK FOR CORRECT IC OPERATION


- Disconnect the IC connector.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect the IC 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 IC. 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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