B2484

DTC B2484

CIRCUIT DESCRIPTION
The navigation portion of the cellular and navigation antenna is connected to the vehicle communication interface module (VCIM) with a RG-174 coax cable. The VCIM polls the data from the antenna once every second.

CONDITIONS FOR RUNNING THE DTC
- The ignition must be in the RUN or ACC position.
- The system voltage is at least 9.5 volts and no more than 15.5 volts.
- All the above conditions are present for greater than 1 second.

CONDITIONS FOR SETTING THE DTC
- The VCIM does not detect a navigation signal.
- All the above conditions are present for greater than 1 second.

ACTION TAKEN WHEN THE DTC SETS
- The OnStar(R) status LED turns RED.
- The OnStar(R) Call Center cannot locate the vehicle.

CONDITIONS FOR CLEARING THE DTC
- The VCIM detects the presence of the cellular and navigation antenna.
- A history DTC clears after 50 malfunction free ignition cycles.
- The VCIM receives the clear DTC command from the scan tool.

TEST

Steps 1-6:

Steps 7-8: