• | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
• | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
• | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
The navigation radio tests the vehicle information communication system (VICS) memory when it detects a power mode transition to ON.
• | Radio ON. |
• | Battery voltage must be between 9-16 volts. |
The navigation radio detects an internal error in the radio.
• | Limited or no VICS information is used in route guidance. |
• | VICS switch may not be displayed on the screen. |
• | Last VICS information is displayed if requested. |
• | The condition responsible for setting the DTC no longer exists. |
• | A history DTC will clear once 50 consecutive malfunction-free ignition cycles have occurred. |
Cycle the ignition after a successful inspection with a scan tool so initialization will occur.
Radio/Navigation System Schematics
Navigation System Description and Operation
Control Module References for scan tool information
⇒ | If the DTC resets, replace the radio. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for Radio replacement, setup, and programming