For 1990-2009 cars

### Diagnostic Instructions

• | 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

### DTC Descriptor

DTC B2462 00: Global Positioning System Sensor Receiver Failure
DTC B2462 08: Global Positioning System Sensor Signal Invalid

### Circuit Description

The navigation antenna is connected to the navigation module with a coax cable. The navigation module polls the data from the navigation antenna once every second.

### Conditions for Running the DTC

• | The ignition ON

• | The system voltage is at least 9.5 volts and no more than 15.5 volts.

### Conditions for Setting the DTC

• | GPS antenna output above threshold.

• | General GPS receiver error during test.

### Conditions for Clearing the DTC

• | The navigation module detects a proper signal from the GPS antenna.

• | A history DTC clears after 50 fault-free ignition cycles.

### Reference Information

#### Schematic Reference

Radio/Navigation System Schematics

#### Connector End View Reference

Component Connector End Views

#### Description and Operation

Navigation System Description and Operation

#### Electrical Information Reference

• | Circuit Testing

• | Connector Repairs

• | Testing for Intermittent Conditions and Poor Connections

• | Wiring Repairs

### Circuit/System Testing

1. Ignition OFF, disconnect the GPS coaxial cable from the navigation module.
2. Ignition ON, test for 4-5.5 volts between the center conductor and the shield of the coaxial cable.

⇒ | If not within the specified range, replace the navigation module.

3. If all circuits test normal, replace the GPS antenna.

### Repair Instructions

Perform the Diagnostic Repair Verification.

• | Electronic Navigation Antenna Replacement

• | Control Module References for navigation module replacement, setup, and programming.