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B0080




DTC B0080

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
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

DTC B0080 08
- Passenger Seat Position Sensor Circuit Invalid

Diagnostic Fault Information





Circuit/System Description

The seat position sensor (SPS) is used to determine the proximity of a front passenger seat position with respect to the passenger instrument panel air bag. 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 passenger instrument panel air bag. 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 passenger instrument panel air bag 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 sensor signal circuit is shorted to voltage for 500 milliseconds.

B0080 02

The SDM detects the passenger seat position sensor signal circuit is shorted to ground for 500 milliseconds.

B0080 04

The SDM detects the passenger seat position sensor signal circuit is open for 500 milliseconds.

B0080 06

The SDM detects the passenger seat position sensor signal circuit is shorted to ground or an open for 500 milliseconds.

B0080 08

The SDM detects the passenger seat position sensor signal is invalid.

Action Taken When the DTC Sets

* The SDM defaults the SPS to seat forward threshold.
* The SDM requests the instrument panel cluster (IPC) to illuminate the AIR BAG indicator.

Conditions for Clearing the DTC

* The condition for setting the DTC no longer exists.
* A history DTC will clear once 100 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 End Views By Name)
Description and Operation

SIR System Description and Operation (Description and Operation)
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 (Programming and Relearning)for scan tool information

Circuit/System Verification

Ignition ON, observe the scan tool SDM Psgr. Seat Position Sensor parameter while moving the passenger seat fully forward and fully rearward. The parameter should change from Forward to Rearward.

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:


* Passenger seat position sensor

* SDM

* Passenger seat position sensor wiring harness connector

* SDM wiring harness connector


1. Ignition OFF, disconnect the harness connector at the passenger seat position sensor.
2. Test for 10 ohms or less between the low reference circuit terminal 1 and ground.

If greater than 10 ohms, test the low reference circuit for an 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 than 4.5 volts, test the signal circuit for an open/high resistance or a short to ground. If the circuit tests normal, replace the SDM.
If greater than 5.5 volts, test the signal circuit for a short to voltage. If the circuit tests normal, replace the SDM.

4. If the circuit tests between 4.5-5.5 volts, replace the passenger 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)
* Control Module References (Programming and Relearning)for SDM replacement, setup, and programming