Circuit Description
The inflatable restraint passenger presence system (PPS) is used to monitor the pressure profile of any occupant that is sitting in the front outboard passenger seat and communicate the profile classification to the sensing and diagnostic module (SDM). The SDM will either enable or suppress the deployment of the instrument panel (I/P) module based on the profile classification of the occupant. If the PPS detects this DTC within the PPS, then the PPS will communicate to the SDM through a non class 2 communications circuit that a PPS fault is present. The SDM will then set DTC B0092 indicating a problem within the PPS.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC 1063 Discard System
Conditions for Running the DTC
Ignition 1 voltage is within the normal operating voltage range.
Conditions for Setting the DTC
The PPS has detected an internal fault and must be replaced.
Action Taken When the DTC Sets
| • | The PPS will set a DTC then communicate with the SDM via non class 2 circuit. |
| • | The SDM will set DTC B0092. |
| • | The SDM disables the I/P module deployment loop. |
| • | The SDM commands the AIR BAG indicator ON via class 2 serial data. |
Diagnostic Aids
When this DTC 1063 is set indicating that a new PPS must be installed.
Test Description
The number below refers to the step number on the diagnostic table.
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: SIR Schematics | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
Does the scan tool display DTC 1063? | Go to Step 3 | -- | |
3 |
Important: The PPS is a calibrated system. The PPS must be check for preloads after replacement. Did you complete the replacement? | Go to Step 4 | -- |
4 |
Does the DTC reset? | Go to Step 2 | System OK |
