|
|
Content .. 2218 2219 2220 2221 ..
Scan Tool Reference Control Module References for scan tool information Circuit/System Verification Radio ON, adjust the fade and balance controls on the radio to test all four channels individually. Circuit/System Testing Without Amplifier 1. Ignition OFF, disconnect the harness connector at the appropriate speaker. 2. Radio ON, test for 5.0-7.5 volts between the signal circuit terminal A and ground. If greater than the specified range, test the signal circuit for a short to voltage. If the If less than the specified range, test the signal circuit for a short to ground or an 3. Test for 5.0-7.5 volts between the signal circuit terminal B and ground. If greater than the specified range, test the signal circuit for a short to voltage. If the If less than the specified range, test the signal circuit for a short to ground or an 4. If all circuits test normal, test or replace the speaker. With Amplifier 1. Ignition OFF, disconnect the X1(except UQS) or X4(UQS)and X3 harness connectors at the amplifier. 2. Radio ON, test for 5.0-7.5 volts between the appropriate signal circuit terminal listed below and ground. Left front door or tweeter - Connector X2, terminal 3 IMPORTANT: The DTC can be set by either the radio or the amplifier. If the DTC was set by the radio, diagnose suspect audio input circuits to the
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Cellular, Entertainment, and Navigation - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Right front door or tweeter - Connector X2, terminal 1 Left rear speaker - Connector X2, terminal 7 Left rear subwoofer - Connector X3, terminal 3 Right rear speaker - Connector X2, terminal 5 Right rear subwoofer - Connector X3, terminal 2 If greater than the specified range, test the signal circuit for a short to voltage. If the If less than the specified range, test the signal circuit for a short to ground or an 3. Radio ON, test for 5.0-7.5 volts between the appropriate signal circuit terminal listed below and ground. Left front door or tweeter - Connector X2, terminal 4 Right front door or tweeter - Connector X2, terminal 2 Left rear speaker - Connector X2, terminal 8 Left rear subwoofer - Connector X3, terminal 7 Right rear speaker - Connector X2, terminal 6 Right rear subwoofer - Connector X3, terminal 6 If greater than the specified range, test the signal circuit for a short to voltage. If the If less than the specified range, test the signal circuit for a short to ground or an 4. If all circuits test normal, replace the amplifier. Repair Procedures Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Speaker Replacement Reference Control Module References for Amplifier and Radio replacement, setup, and DTC B1259 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.
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Cellular, Entertainment, and Navigation - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Diagnostic Procedure Instructions provides an overview of each diagnostic category. DTC Descriptors DTC B1259 02 Antenna Ground Circuit Short to Ground DTC B1259 05 Antenna Ground Circuit Short to Battery or Open Circuit/System Description The digital radio receiver (DRR) receives digital radio information from a specific digital radio Conditions for Running the DTC Radio ON. Battery voltage must be between 9-16 volts. Conditions for Setting the DTC B1259 02 The DTC will set when the DRR detects a short to ground in the antenna ground circuit. B1259 05 The DTC will set when the DRR detects a short to voltage or an open/high resistance in the Actions Taken When the DTC Sets Digital radio reception may be poor or not available. The radio displays "No XM Signal" or "Check Antenna". Conditions for Clearing the DTC The condition responsible for setting the DTC no longer exists.
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Cellular, Entertainment, and Navigation - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
A history DTC will clear once 100 consecutive malfunction-free ignition cycles have Reference Information Schematic Reference Radio/Navigation System Schematics Connector End View Reference Component Connector End Views Description and Operation Radio/Audio System Description and Operation Electrical Information Reference Circuit Testing Connector Repairs Testing for Intermittent Conditions and Poor Connections Wiring Repairs Scan Tool Reference Control Module References for scan tool information Special Tools EL-48028 Digital Radio Test Antenna. See Special Tools. Circuit/System Testing IMPORTANT: Ensure the vehicle is outside in an area with an unobstructed Contact XM radio services at 1-800-852-9696 to verify the
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Cellular, Entertainment, and Navigation - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Content .. 2218 2219 2220 2221 ..
|
|
|