2010 Cadillac CTS Sedan AWD V6-3.6L Page 765
DTC Descriptors
DTC C0800 03
- Device Power 1 Circuit Voltage Below Threshold
DTC C0800 07
- Device Power 1 Circuit Voltage Above Threshold
Diagnostic Fault Information
Circuit/System Description
The electronic parking brake control module (EPB) monitors the system voltage circuit to determine if the voltage is within the normal operating
range. When the EPB detects that the system voltage is below 9.2 V or above 16 V, the DTC C0800 sets.
Conditions for Running the DTC
* Ignition is ON.
* Engine ON.
Conditions for Setting the DTC
C0800 03
* The EPB detects that the system voltage is less than 9.2 V.
* The above condition is present for 7 seconds.
C0800 07
* The EPB detects that the system voltage is greater than 16 V.
* The above condition is present for 7 seconds.
Action Taken When the DTC Sets
The Driver Information Center (DIC)displays the SERVICE PARKING BRAKE message.
Conditions for Clearing the DTC
The system voltage returns to normal operating range.
Diagnostic Aids
* A high or low voltage DTC set in multiple modules indicates a concern in the charging system.
* A possible cause of this DTC could be overcharging with a battery charger or jump starting.
* A high or low voltage value in multiple modules indicates a concern in the charging system.
Reference Information
Schematic Reference
Park Brake System Schematics (See: Brakes and Traction Control/Parking Brake System/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/Circuit Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/Circuit
Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/Wiring Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
