DTC 1052, 1053, 1054, or 1055. Pontiac Solstice 2006

For 1990-2009 cars only

Makes 🢒 Pontiac 🢒 2006 🢒 Solstice 🢒 Vehicle Control Systems 🢒 Vehicle DTC Information 🢒 DTC 1052, 1053, 1054, or 1055

Diagnostic Instructions

•	Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

•	Review Strategy Based Diagnosis for an overview of the diagnostic approach.

•	Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptors

DTC 1052: PPS Preload Failure Region 1

DTC 1053: PPS Preload Failure Region 2

DTC 1054: PPS Preload Failure Region 3

DTC 1055: PPS Preload Failure Region 4

The passenger presence system (PPS) is divided up into 4 regions. When there is an unwanted force being applied to one or more PPS regions, the PPS will set a diagnostic trouble code (DTC). If the PPS detects any preload DTC within the PPS, then the PPS will communicate to the sensing and diagnostic module (SDM) through a non GMLAN communications circuit that a PPS fault is present. The SDM will then set DTC B0081 indicating a problem within the PPS and will suppress the deployment of the instrument panel (I/P) module and then turn the AIR BAG indicator ON.

Conditions for Running the DTC

Ignition voltage is between 9-16 volts.

Conditions for Setting the DTC

The PPS will set a DTC when a region has detected a preload/pressure on it, refer to chart below for specific region.

DTC	Preload Regions
DTC 1052	Region 1
DTC 1053	Region 2
DTC 1054	Region 3
DTC 1055	Region 4

Action Taken When the DTC Sets

•	The PPS will set a DTC, and then communicate with the SDM via non GMLAN circuit.

•	The SDM will set DTC B0081.

•	The SDM disables the I/P module deployment loop.

•	The PPS will turn ON the passenger air bag status OFF indicator.

•	The SDM commands the AIR BAG indicator ON 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.

Diagnostic Aids

When passenger seat bottom trim cover is serviced or removed, the trim cover, when reinstalled may apply certain unwanted pressure to the PPS causing DTCs 1052-1055 to set.

Reference Information

Schematic Reference

SIR Schematics

Connector End View Reference

SIR Connector End Views

Electrical Information Reference

•	Circuit Testing

•	Connector Repairs

•	Testing for Intermittent Conditions and Poor Connections

•	Wiring Repairs

Circuit/System Verification

Use the scan tool. Go to the passenger presence system (PPS) menu, then retrieve the DTCs. Refer to Passenger Presence System Displaying Code Procedure .
Check that DTC 1051 is not set.

⇒	If DTC 1051 is set as current, refer to DTC 1051 .

Using the chart provided in the Conditions for Setting the DTC, locate the region associated with the DTC that is set.

Important: If preload DTC resets after adjusting the seat bottom trim cover, it may be necessary to perform this procedure again.

Use the scan tool and perform Passenger Presence System Preload Test , and then request codes. Verify that there is no preload DTCs set.

⇒	If no preload DTCs are set then remove the seat bottom trim cover and reinstall. Refer to Inflatable Restraint Passenger Presence System Replacement - Front . After reinstalling refer to Repair Verification.

Repair Instructions

•	SIR/SRS Wiring Repairs

•	Control Module References for PPS replacement, setup, and programming

Repair Verification

Use the scan tool and perform Passenger Presence System Preload Test , and then request codes. Verify that any preload DTCs set after trying to adjust the seat bottom trim.

⇒	If any preload DTC resets, replace the PPS.