Pinpoint Test T: No Global Positioning System (GPS) Antenna Signal

Information and Entertainment System

Pinpoint Tests

Pinpoint Test T: No Global Positioning System (GPS) Antenna Signal

Normal Operation

The Global Positioning System (GPS) antenna provides information from the GPS satellite system to the Audio Control Module (ACM). This information is used to calculate vehicle position and direction of travel.

- DTC B119F:01 (GPS Antenna: General Electrical Failure) - sets when any failure is detected in the GPS antenna circuit.
- DTC B119F:13 (GPS Antenna: Circuit Open) - sets when an open is detected in the GPS antenna circuit.

This pinpoint test is intended to diagnose the following:

- GPS antenna
- ACM



PINPOINT TEST T: NO GPS ANTENNA SIGNAL

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T1 CHECK THE GPS ANTENNA INSTALLATION


- Verify the GPS antenna is installed correctly and no aftermarket equipment is obstructing the antenna.
- Is the GPS antenna installed correctly?

Yes
GO to T2.

No
Correctly INSTALL the GPS antenna. REFER to Global Positioning System (GPS) Antenna Service and Repair. TEST the system for normal operation.

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T2 ISOLATE THE GPS ANTENNA


- Install a new GPS antenna. Refer to Global Positioning System (GPS) Antenna Service and Repair.
- Move the vehicle outside of any enclosed structure to an area that is unobstructed by trees, tall buildings, and bridges.
- Operate the audio system in navigation mode.
- Does the navigation operate correctly?

Yes
The concern was caused by an inoperative GPS antenna. The system is operating correctly at this time. CLEAR any DTCs present. TEST the system for normal operation.

No
GO to T3.

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T3 CHECK FOR CORRECT ACM OPERATION


- Disconnect all the ACM connectors.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect all the ACM connectors and make sure they seat correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?

Yes
INSTALL a new ACM. REFER to Audio Control Module (ACM) Audio Control Module (ACM). TEST the system for normal operation.

No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR any DTCs present. TEST the system for normal operation.

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