Pinpoint Test F: DTC B1304:68

Active Park Assist

Pinpoint Test F: DTC B1304:68

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

Normal Operation

The Parking Aid Module (PAM) sends and receives network messages over the High Speed Controller Area Network (HS-CAN) from the Power Steering Control Module (PSCM) which is part of the Electronic Power Assist Steering (EPAS) system. A fault condition occurs when the PSCM does not send an acknowledge exit message to the PAM indicating the EPAS system has exited the active park assist maneuvers.

This fault occurred while the operator was using the active park assist system and the system had control of the steering. During the failure, the operator should see the Instrument Panel Cluster (IPC) message center message "Active Park Fault" followed by an audible chime.

- DTC B1304:68 (Electronic Power Assisted Steering System: Event Information) - sets when the PAM does not receive an acknowledge exit message from the PSCM.

This pinpoint test is intended to diagnose the following:

- PAM
- PSCM



PINPOINT TEST F: B1304:68

NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

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F1 CHECK FOR RECORDED DTCs FROM BOTH THE CONTINUOUS AND ON-DEMAND PSCM SELF-TESTS


- Check for recorded PSCM DTCs from the continuous and on-demand self-tests.
- Are any PSCM DTCs recorded?

Yes
REFER to Steering. REPAIR all PSCM DTCs. TEST the system for normal operation.

No
GO to F2.

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F2 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 verify the concern is still present.
- Is the concern still present?

Yes
INSTALL a new PAM. REFER to Collision Avoidance and Parking Assist Systems. CLEAR the DTCs. 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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