When the ignition is turned ON, the inflatable restraint sensing and diagnostic module (SDM) performs tests to diagnose critical malfunctions within the Passenger Presence System (PPS). When the SDM has completed the power-up mode the SDM will establish communication with the PPS. The SDM will increase a fault counter with each ignition cycle that a fault exists with the PPS. The SDM will lock out the PPS after a predetermined ignition cycle count maximum has been reached. For more detailed information concerning class 2 serial data lines, refer to Data Link Communications Description and Operation .
This diagnostic procedure supports the following DTC:
DTC B1530 Discard Passenger Presence System 1
Ignition 1 voltage is within the normal operating voltage range.
• | The PPS has a current fault. |
• | The PPS fault counter in the SDM has reached 127 counts. |
• | The SDM disables the instrument panel (I/P) module deployment loop. |
• | The SDM commands the AIR BAG indicator ON via class 2 serial data. |
• | The SDM will lock out the malfunctioning PPS. |
• | The PPS has been replaced. |
• | The SDM has been replaced. |
Important: DTC B0092 or DTC B0098 will set if the PPS has a malfunction, and has set any one of the following DTC: 032, 034, 036, 052, or 056. When DTC B0092 or DTC B0098 is present, it is important to check the PPS for any current DTC. Refer to Passenger Presence System Flash Code Procedures . If the PPS has any current DTC address those DTC before performing this DTC chart.
Any repair performed on the original PPS will not clear DTC B1530.
The numbers below refer to the step numbers on the diagnostic table.
Step | Action | Yes | No |
---|---|---|---|
Schematic Reference: SIR Schematics Connector End View Reference: SIR Connector End Views | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
Important: If the sensing and diagnostic module (SDM) has DTC B0092 or DTC B0098 stored as current, you must address those DTC before continuing with this diagnostic table. Is DTC B0092 or DTC B0098 stored as current DTC? | Go to Step 3 | ||
If the Passenger Presence System (PPS) has been replaced then DTC B1530 will automatically be cleared. If the PPS was repaired and DTC B1530 is current, the SDM will have to be replaced. Is DTC B1530 a current DTC? | Go to Step 4 | System OK | |
Replace the SDM. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement? | Go to Step 5 | -- | |
Perform the Setup SDM Serial Number in body control module (BCM) procedure. Refer to Control Module References for replacement, setup, and programming. Did you complete the setup procedure? | System OK | -- |