Captiva

DTC B0098

When the ignition switch is turned to ON, the inflatable restraint sensing and diagnostic module (SDM) will perform turn-on test to diagnose critical malfunctions within SDM itself. The SDM continuously checks the disable switch position switch and circuit defect by letting the regular voltage flow through the disable switch circuit and verifying the current.

Ignition voltage is between 9-16 V.

B0098 02

The SDM detects a short to ground in the passenger air bag disable switch signal circuit.

B0098 05

The SDM detects an open/high resistance in the passenger air bag disable switch signal circuit or the passenger air bag disable switch ground circuit or a short to voltage in the passenger air bag disable switch signal circuit.

The SDM will ignore the signal from the passenger air bag disable switch and will continuously enable the passenger air bag.

Schematic Reference

SIR Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

SIR System Description and Operation

Electrical Information Reference

Scan Tool Reference

Control Module References for scan tool information

Observe the scan tool Passenger Air Bag Disabled Switch parameter while commanding the passenger air bag ON and OFF by using the S40 passenger air bag disable switch. The value should change between On and Off

1. Ignition OFF, disconnect the harness connector at the S40 passenger air bag disable switch.
2. Test for less than 30 Ω between the ground circuit terminal 3 and ground.

⇒	If greater than the specified range, test the ground circuit for an open/high resistance. If the circuit tests normal, replace the K36 SDM.

3. Ignition ON, test for 4.75-5.25V between the signal circuit terminal 1 and ground.

⇒	If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K36 SDM.

⇒	If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the K36 SDM.

4. If all circuits test normal, replace the S40 passenger air bag disable switch.

1. Disconnect the harness connector at the S40 passenger air bag disable switch.
2. With the switch open, test for 380-420 Ω between the signal terminal 1 and the ground terminal 3.

⇒	If not within the specified range, replace the S40 passenger air bag disable switch.

3. With the switch closed, test for 95-105 Ω, between the signal terminal 1 and the ground terminal 3.

⇒	If not within the specified range, replace the S40 passenger air bag disable switch.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for SDM replacement, setup, and programming