U2153

DTC U2153

Circuit Description

The vehicle information communication system (VICS) Module Assembly communicates with the navigation radio over 2 circuits. These are the VICS (+) circuit, and the VICS (-) circuit.

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC U2153 Navigation Electronic Control Unit (ECU) - VICS Communication Circuit

Conditions for Running the DTC

* The vehicle must be equipped with the VICS Module Assembly. This system is available only on export vehicles and is dealer installed.
* The navigation radio must detect a power mode transition from OFF-ASLEEP to ON.
* The navigation radio does not set this DTC if B1327 or B1328 is current.

Conditions for Setting the DTC

There is no response from the VICS module when queried by the navigation radio after successfully initializing the system.

The navigation radio does not receive information from the VICS module when the radio detects a power mode transition to ON.

Action Taken When the DTC Sets

The VICS switch disappears from the navigation system menu.

Conditions for Clearing the DTC

The navigation radio receives a response from the VICS module.

Test Description

Step 1 - Step 9:

The numbers below refer to the step numbers on the diagnostic table.
1. This step determines if the malfunction is present.
2. This step verifies that the DTC sets under normal operating systems.