B0080
DTC B0080
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
DTC B0080 01
- Passenger Seat Position Sensor Circuit Short to Battery
DTC B0080 02
- Passenger Seat Position Sensor Circuit Short to Ground
DTC B0080 04
- Passenger Seat Position Sensor Circuit Open
DTC B0080 06
- Passenger Seat Position Sensor Circuit Short to Ground or Open Circuit
Diagnostic Fault Information
Circuit/System Description
The inflatable restraint seat position sensor (SPS) is used to determine the proximity of a front passenger seat position with respect to the inflatable restraint I/P module. The SPS is a hall effect sensor that is mounted on the seat track of the front passenger seat. The SPS is connected to the sensing and diagnostic module (SDM) with a low reference and a signal circuit. The SDM uses the state of the SPS to determine the need for a stage 2 deployment of the inflatable restraint I/P module. When the seat is in the forward position stage 2 deployment is disabled, and when in the rearward position stage 2 deployment is enabled. The SDM monitors the passenger seat position switch signal circuit and if a fault is detected, the SDM will set DTC B0080 and defaults to disabling stage 2 inflatable restraint I/P module deployment.
Conditions for Running the DTC
Ignition voltage is between 9-16 volts.
Conditions for Setting the DTC
B0080 01
The SDM detects the passenger seat position switch signal circuit is shorted to voltage for 500 milliseconds.
B0080 02
The SDM detects the passenger seat position switch signal circuit is shorted to ground for 500 milliseconds.
B0080 04
The SDM detects the passenger seat position switch signal circuit is open for 500 milliseconds.
B0080 06
The SDM detects the passenger seat position switch signal circuit is shorted to ground or an open for 500 milliseconds.
Action Taken When the DTC Sets
* The SDM sets a DTC B0080.
* The SDM defaults the SPS to seat forward threshold.
* The SDM commands ON the AIR BAG warning lamp via serial data communications.
Conditions for Clearing the DTC
* The condition responsible for setting the DTC no longer exists and the scan tool Clear DTCs function is used.
* A history DTC will clear once 255 malfunction-free ignition cycles have occurred.
Reference Information
Schematic Reference
SIR Schematics ([1][2]Air Bag Systems)
Connector End View Reference
Component Connector End Views (Connector Views)
Description and Operation
SIR System Description and Operation (Description and Operation)
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
Programming and Relearning (Programming and Relearning)for Scan Tool Information
Circuit/System Verification
Ignition ON, with a scan tool, monitor the SDM Psgr. Seat Position Sensor parameter while moving the passenger seat fully forward and fully rearward. The parameter should change from Forward to Rearward appropriately.
If DTC B0080 is current and the parameters are correct, replace the SDM.
Circuit/System Testing
Important: When removing connectors, inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected component/connector:
* The seat position sensor
* The SDM
* The seat position sensor wiring harness connector
* The SDM wiring harness connector
1. Ignition OFF, disconnect the harness connector at the right SPS and inspect the component and harness sides for damage or corrosion.
• If damage or corrosion is found, repair or replace as necessary.
2. Test for less than 2.0 ohms of resistance between low reference terminal 1 and ground.
• If greater than the specified range, test the low reference circuit for open/high resistance. If the circuit tests normal, replace the SDM.
3. Ignition ON, test for 4.5 - 5.5 volts between the signal circuit terminal 2 and ground.
• If less that the specified range, test the signal circuit for open/high resistance or a short to ground. If the circuit tests normal, replace the SDM.
• If greater that the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the SDM.
4. If the circuits test normal, replace the seat position sensor.
Repair Instructions
Perform the Diagnostic Repair Verification (Verification Tests) after completing the repair.
* Inflatable Restraint Seat Position Sensor Replacement (Service and Repair)
* Programming and Relearning (Programming and Relearning)for SDM replacement, setup, and programming