B009A
DTC B009A
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview) provides an overview of each diagnostic category.
DTC Descriptors
B009A 01
- Left Active Hood Hinge Actuator Deployment Loop Short to Battery
B009A 02
- Left Active Hood Hinge Actuator Deployment Loop Short to Ground
B009A 04
- Left Active Hood Hinge Actuator Deployment Loop Open
B009A 0D
- Left Active Hood Hinge Actuator Deployment Loop Above Threshold
B009A 0E
- Left Active Hood Hinge Actuator Deployment Loop Below Threshold
Diagnostic Fault Information
Circuit/System Description
The pedestrian hood actuators deploy only when a valid signal whose energy is capable of triggering deployment of the hood is present. The pedestrian hood actuators only deploys in those events where the activation of the hood is expected. The hood actuator is not expected to deploy in low severity event where the risk of injury is low or in a high severity event like a car to car crash. During a frontal pedestrian impact of sufficient force the PIDS module will allow current to flow through the deployment loop in order to deploy the hood hinge actuator. The pedestrain impact module performs continuous diagnostic tests on the deployment loops to check for proper circuit continuity, shorts to ground and shorts voltage. There are 2 shorting bars used within the hood hinge actuator connector which will short together both high and low control circuits, when the hood hinge connector is disconnected. This helps to prevent unwanted deployment of the actuator during servicing.
Conditions for Running the DTC
Ignition voltage is between 9-16 volts.
Conditions for Setting the DTC
B009A 01
The pedestrian impact detection module deployment loop resistance leakage is less than 3.5 kohms for 2.5 seconds.
B009A 02
The pedestrian impact detection module deployment loop resistance leakage is less than 3.5 kohms for 2.5 seconds.
B009A 04
The pedestrian impact detection module deployment loop resistance is greater than 7.2 ohms for 2.5 seconds.
B009A 0D
The pedestrian impact detection module deployment loop resistance is greater than 3.1 ohms for 2.5 seconds.
B009A 0E
The pedestrian impact detection module deployment loop resistance is less than 1.6 ohms for 2.5 seconds.
Action Taken When the DTC Sets
* The PIDS module commands the DIC to display the message 'Service Pedestrian Protection System'.
* The PIDs module stores DTC in memory.
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 ([1][2]Collision Avoidance and Parking Assist Systems)
Connector End View Reference
Component Connector End Views (Connector Views)
Description and Operation
Object Detection Description and Operation (RPA) (Object Detection Description and Operation (RPA))Object Detection Description and Operation (PIDS) (Object Detection Description and Operation (PIDS))
Electrical Information Reference
* Circuit Testing (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)
Scan Tool Reference
Control Module References (Programming and Relearning) for scan tool information.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the left hood hinge actuator.
2. Ignition ON, test for less than 1 volt between the high control circuit terminal A and ground.
• If greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the PIDS module.
3. Test for less than 1 volt between the low control circuit terminal B and ground.
• If greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the PIDS module.
4. Ignition OFF, test for infinite resistance between the high control circuit terminal A and ground.
• If not the specified value, test the circuit for a short to ground. If the circuit tests normal, replace the PIDS module.
5. Test for infinite resistance between the low control circuit terminal B and ground.
• If not the specified value, test the circuit for a short to ground. If the circuit tests normal, replace the PIDS module.
6. Test for less then 1 ohm of resistance between the high control circuit terminal A and ground.
• If not within the specified range, test the circuit for an open/high resistance.
7. Test for less then 1 ohm of resistance between the low control circuit terminal B and ground.
• If not within the specified range, test the circuit for an open/high resistance.
8. If all circuits test normal, replace the hood hinge actuator.
Repair Instructions
Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.
* Active Hood Hinge Actuator Replacement (Service and Repair)
* Control Module References (Programming and Relearning) for PIDS module replacement, setup, and programming