Symptoms - Cellular Communication
Symptoms - Cellular Communication |
Note | ||
The following steps must be completed before using the symptom table. |
1. |
Perform the
Diagnostic System Check - Vehicle
before using the Symptom Tables in order to verify that all of the following are true:
|
• |
There are no DTCs set.
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• |
The control modules can communicate via the serial data link.
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2. |
Review the system operation in order to familiarize yourself with the system functions. Refer to
OnStar Description and Operation
.
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Visual/Physical Inspection |
• |
Inspect for aftermarket devices which could affect the operation of the radio/audio system. Refer to
Checking aftermarket accessories
.
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• |
Inspect for easily accessible or visible system components for obvious damage or conditions which may cause the symptom.
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Intermittent |
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections .
Symptom List |
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:
• |
Bluetooth Malfunction
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No Global Positioning System (GPS) Reception
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OnStar Microphone Malfunction
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OnStar Audio Malfunction
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• |
OnStar Button LED Malfunction
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• |
OnStar Call Center Remote Function Requests Malfunction
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• |
OnStar Button Malfunction
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Unable to Contact OnStar Call Center
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OnStar Voice Recognition Malfunction
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• |
OnStar Steering Wheel Control Functions Malfunction
|