B009B
DTC B009B
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provides an overview of each diagnostic category.
DTC Descriptors
B009B 01
-
Right Active Hood Hinge Actuator Deployment Loop Short to Battery
B009B 02
-
Right Active Hood Hinge Actuator Deployment Loop Short to Ground
B009B 04
-
Right Active Hood Hinge Actuator Deployment Loop Open
B009B 0D
-
Right Active Hood Hinge Actuator Deployment Loop Above Threshold
B009B 0E
-
Right 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 car to car crash. 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 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
B009B 01
The pedestrian impact detection module deployment loop resistance leakage is less than 3.5 k ohms for 2.5 seconds.
B009B 02
The pedestrian impact detection module deployment loop resistance leakage is less than 3.5 k ohms for 2.5 seconds.
B009B 04
The pedestrian impact detection module deployment loop resistance is greater than 7.2 ohms for 2.5 seconds.
B009B 0D
The pedestrian impact detection module deployment loop resistance is greater than 3.1 ohms for 2.5 seconds.
B009B 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 pedestrian impact detection module commands the DIC to display Service Pedestrian Protection System.
* The pedestrian impact detection 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 A/C Compressor Clutch
Description and Operation
Object Detection Description and Operation (UFT) Object Detection (UFT)Object Detection Description and Operation (UVC) Object Detection (UVC)Object Detection Description and Operation (UD7) Object Detection (UD7)Object Detection Description and Operation (B3T) Object Detection (B3T)
Electrical Information Reference
* Circuit Testing Circuit Testing
* Connector Repairs Connector Repairs
* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs Wiring Repairs
Scan Tool Reference
Control Module References Control Module References for scan tool information
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the right active 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 pedestrian impact detection 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 pedestrian impact detection 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 pedestrian impact detection 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 pedestrian impact detection module.
6. Test for less then 1 ohm 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 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 right active 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 Control Module References for pedestrian impact detection module replacement, setup, and programming