DTC B1024 Radio
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 B1024 11: Circuit Board Temperature Sensor above maximum thresholdCircuit/System Description
The internal amplifier circuitry is monitored for temperature. If the amplifier senses an over-heat condition higher than 95[ordm ]C (203[ordm ]F) of the internal circuitry, the amplifier will shut down until the internal circuitry cools below 90[ordm ]C (194[ordm ]F).
Conditions for Running the DTC
The following are conditions that must be present in order for the radio to enable the diagnostics:
The radio is in ACCESSORY, RUN or RAP power mode.
The ignition voltage is between 9-16 volts.
Conditions for Setting the DTC
Amplifier senses an over-heat condition higher than 95[ordm ]C (203[ordm ]F) of the internal circuitry.
Action Taken When the DTC Sets
Amplifier mutes all speaker channels.
Conditions for Clearing the DTC
The condition for setting the DTC is no longer present.
A history DTC clears after 40 malfunction free ignition cycles.
The scan tool clear DTC function is used to clear the DTC.
Reference Information
Schematic Reference
Connector End View Reference
Entertainment/Communication Connector End Views
Electrical Information Reference
Circuit/System Testing
The amplifier could operate normally at a reasonably high volume for an extended period of time. Extended use of extremely high volume, especially in warm weather conditions, may induce this DTC. Under these conditions it may be normal for this DTC to set to prevent permanent damage to the amplifier circuitry.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for audio amplifier replacement, setup and programming.
DTC B1024 TV Module
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 B1024: Circuit Board Temperature Sensor Exceeding LimitsCircuit/System Description
There is a temperature sensor monitoring the internal circuit temperature inside the TV antenna module.
Conditions for Running the DTC
TV system works.
Conditions for Setting the DTC
The internal circuit of TV antenna module detects the temperature exceeds the limits.
Action Taken When the DTC Sets
The TV system does not work when this DTC is present.
Conditions for Clearing the DTC
| • | The conditions for setting the DTC are not present. |
| • | The history DTC clears after 50 malfunction-free ignition cycles. |
| • | The scan tool clear DTC function is used to clear the DTC. |
Reference Information
Schematic Reference
Radio/Navigation System Schematics
Connector End View Reference
Navigation System Connector End Views
Electrical Information Reference
Circuit/System Verification
If the TV system is used for an extended length of time, especially under the high temperature, this DTC is present. Under this condition the DTC is set in order to prevent the permanent damages to the TV antenna module, which is normal.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
TV antenna module replacement, refer to TV Antenna Module Replacement
