2010 Cadillac CTS Sedan AWD V6-3.6L Page 177
DTC Descriptor
B0099 00
- Deployment Commanded Circuit
Circuit/System Description
The pedestrian impact detection system senses and discriminates vehicle impacts and deploys the pedestrian hood hinge actuators in a timely
manner to protect vulnerable pedestrians. The discrimination sensor provides discrete force information to the pedestrian impact detection module.
The pedestrian impact detection module uses vehicle acceleration information from the safing sensor and force information from the discrimination
sensor to determine those events when the deployment of the hood hinge actuator is expected. The pedestrian hood actuators deploy only when a
valid signal whose energy is capable of triggering deployment of the hood is present. During a frontal pedestrian impact of sufficient force, the
pedestrian impact detection module will allow current to flow through the deployment loop in order to deploy the hood hinge actuator. The
pedestrian impact detection module provides a minimum of 1.2 amps and a maximum of 1.95 amps of current for a minimum of 2 ms when an
actuator deployment is commanded. The pedestrian impact detection module performs continuous diagnostic tests on the deployment loops to
check for proper circuit continuity. The pedestrian impact detection module sets this DTC in the current ignition cycle when a hood hinge actuator
deployment has been commanded. After a deployment, the hood hinge actuators and the pedestrian impact detection module need to be replaced.
Conditions for Running the DTC
Ignition voltage is between 9-16 volts.
Conditions for Setting the DTC
* The pedestrian impact detection module detects a frontal impact to warrant deployment of the hood hinge actuators.
* The pedestrian impact detection module provides a minimum of 1.2 amps and a maximum of 1.95 amps of current for a minimum of 2 ms to
command deployment of the hood hinge actuators
Action Taken When the DTC Sets
* The pedestrian impact detection module commands the DIC to display Reset Hood See Owners Manual for the following two ignition cycles.
* The pedestrian impact detection module commands the DIC to display Service Pedestrian Protection System at the third ignition cycle after
the hood hinge actuators have been deployed until service is performed.
Conditions for Clearing the DTC
* The condition responsible for setting the DTC no longer exists.
* A history DTC will clear once 40 malfunction-free ignition cycles have occurred.
Reference Information
Schematic Reference
Object Detection Schematics (See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist Systems/Diagrams/Electrical
Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Object Detection Description and Operation (UD7 with Display) (See: Accessories and Optional Equipment/Collision Avoidance and Parking
Assist Systems/Description and Operation/Object Detection Description and Operation (UD7 with Display))Object Detection Description and
Operation (UD7 Audio Only) (See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist Systems/Description and
Operation/Object Detection Description and Operation (UD7 Audio Only))Object Detection Description and Operation (B3T) (See: Accessories
and Optional Equipment/Collision Avoidance and Parking Assist Systems/Description and Operation/Object Detection Description and Operation
(B3T))Object Detection Description and Operation (UVC) (See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist
Systems/Description and Operation/Object Detection Description and Operation (UVC))
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 Testing
