Information Center Telltale Malfunction

Information Center Telltale Malfunction

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview) provides an overview of each diagnostic category.



Diagnostic Fault Information






Circuit/System Description

The object alarm system senses how close the vehicle is to an object. The distance is determined by the 4 ultrasonic sensors located in the rear bumpers. The object detection system will notify the driver when backing up while parking at speeds less than 8 km/h (5 mph). The object alarm system makes parking easier and helps avoid colliding with objects such as parked vehicles. The object alarm system will use the telltale assembly information center indicators and the radio speakers to notify the driver when an object is within the object alarm system field of view. Power is provided to the telltale assembly information center by the object alarm module via the telltale assembly supply voltage circuit. The telltale assembly information center indicators are controlled by the object alarm module via the indicator control circuits. The object alarm module provides the ground for the indicator control circuits.


Reference Information
Schematic Reference

Object Detection Schematics ([1][2]Collision Avoidance and Parking Assist Systems)
Connector End View Reference

Component Connector End Views (Connector Views)
Description and Operation

Object Detection Description and Operation (RPA) (Object Detection Description and Operation (RPA))Object Detection Description and Operation (PIDS) (Object Detection Description and Operation (PIDS))
Electrical Information Reference

* Circuit Testing (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)

Scan Tool Reference

Control Module References (Programming and Relearning) for Scan Tool Information


Circuit/System Verification

Ignition ON, Transmission in reverse, block each of the object detect sensors on at a time. The appropriate display should illuminate indicating the object has been detected.


Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the telltale assembly information center.
2. Ignition ON, verify a test lamp illuminates between the telltale assembly supply voltage circuit terminal 1.

• If the test lamp does not illuminate, test the supply voltage circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the telltale assembly information center.

3. Ignition OFF, disconnect the X1 harness connector at the rear parking assist module.
4. Ignition OFF, connect the harness connector at the telltale assembly information center.
5. Connect a 3A fused jumper wire between the telltale assembly supply voltage circuit terminal 2 and B+.
6. Ignition ON, connect a jumper wire between the following telltale assembly indicator control circuits and ground. When the telltale circuit is jumpered to ground, the indicator should illuminate.

* Telltale assembly indicator control circuit terminal 4
* Telltale assembly indicator control circuit terminal 9
* Telltale assembly indicator control circuit terminal 10


• If any of the indicators do not illuminate, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the telltale assembly information center.

7. If all circuits test normal, test or replace the rear object alarm module.



Repair Instructions

Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.

* Information Center Telltale Assembly Replacement
* Control Module References (Programming and Relearning) for the object alarm module replacement, setup, and programming