Pinpoint Test E: DTC U2472

Parking Aid - Explorer

Pinpoint Tests

Pinpoint Test E: DTC U2472

Normal Operation

The Parking Aid Module (PAM) receives the PRNDL state from the Smart Junction Box (SJB) as a network message.

- DTC U2472 (Unexpected Ignition State) - a continuous and on-demand DTC that sets when the PAM receives an unknown ignition switch state message.

This pinpoint test is intended to diagnose the following:

- SJB
- Network data fault



PINPOINT TEST E: DTC U2472

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E1 CHECK THE DTCs FROM THE PAM ON-DEMAND SELF-TEST


- Ignition ON.
- Enter the following diagnostic mode on the scan tool: PAM Self-Test.
- Clear the DTCs. Repeat the PAM on-demand self-test.
- Is DTC U2472 present?

Yes
GO to E2.

No
The system is operating normally at this time.

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E2 CHECK THE DTCs FROM THE SJB SELF-TEST


- Enter the following diagnostic mode on the scan tool: SJB Self-Test.
- Carry out the SJB self-test.
- Is DTC B1359, DTC B1363 and/or DTC B1555 recorded?

Yes
REFER to Steering Column.

No
GO to E3.

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E3 CHECK FOR CORRECT SJB OPERATION


- Disconnect all the SJB connectors.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect all the SJB connectors and make sure they seat correctly.
- Operate the system and determine if the concern is still present.
- Is the concern still present?

Yes
INSTALL a new SJB. REFER to Body Control Systems. 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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