Supplemental Inflatable Restraint System: Overview — Supplemental Inflatable Restraint System — Airbag

SIR Schematic Icons

SIR Schematic Icons Icon Icon Definition CAUTION: When performing service on or near the SIR components or the SIR wiring, the SIR system must be disabled. Refer to SIR Disabling and Enabling Zones. Failure to observe the correct procedure could cause deployment of the SIR components, personal injury, or unnecessary SIR system repairs. IMPORTANT: In order to prevent accidental deployment, the shorting bars close in order to short the connectors when the connectors are separated. Twisted-pair wires provide an effective shield that helps protect sensitive electronic components from electrical interference. If the wires were covered with shielding, install new shielding. In order to prevent electrical interference from degrading the performance of the connected components, you must maintain the proper specification when making any repairs to the twisted-pair wires shown : The wires must be twisted a minimum of 9 turns per 31 cm (12 in) as measured anywhere along the length of the wires The outside diameter of the twisted wires must not exceed 6.0 mm (0.25 in)

Scheme 1

Scheme 1: SIR Schematic Icons

Scheme 2

Scheme 2: SIR Schematics

Scheme 3

Scheme 4

Scheme 5

Scheme 6

Scheme 6: SIR Component Views

Callout	Component Name
1	Frame - Front
2	Electronic Frontal Sensor (EFS) - Left
3	Electronic Frontal Sensor (EFS) - Right

Scheme 7

Callout	Component Name
1	Inflatable Restraint I/P Module
2	Instrument Panel

Scheme 8

Callout	Component Name
1	Hazard Switch
2	C277
3	Inflatable Restraint Steering Wheel Module Connector C1
4	Inflatable Restraint Steering Wheel Module Connector C2
5	Electronic Adjustable Pedals (EAP) Switch
6	Turn Signal/Multifunction Switch
7	C201
8	C275

Scheme 9

Callout	Component Name
1	Inflatable Restraint Steering Wheel Module
2	Steering Column

Scheme 10

Callout	Component Name
1	Seat Belt Pretensioner - Left
2	C317

Scheme 11

Callout	Component Name
1	Seat Recline Motor - Driver (AR9)
2	Seat Position Sensor - Recline (AAB)
3	Inflatable Restraint Seat Position Sensor (SPS) - Left
4	Seat Position Sensor - Horizontal (AAB)
5	Seat Horizontal Motor - Driver (AR9)
6	Seat Position Sensor - Front (AAB)
7	Seat Front Vertical Motor - Driver (AR9)
8	Seat Rear Vertical Motor - Driver (AR9)
9	Seat Position Sensor - Rear (AAB)

Scheme 12

Callout	Component Name
1	Seat Belt Pretensioner - Right
2	C318

Scheme 13

Callout	Component Name
1	Inflatable Restraint Seat Position Sensor (SPS) - Right
2	Seat Recline Motor - Passenger (V40)
3	Seat Front Vertical Motor - Passenger (V40)
4	Seat Rear Vertical Motor - Passenger (V40)
5	Seat Horizontal Motor - Passenger (V40)

Scheme 14

Callout	Component Name
1	Seat Belt Switch Connector - Passenger
2	Inflatable Restraint Front Passenger Presence System (PPS) Sensor
3	Inflatable Restraint Front Passenger Presence System (PPS) Module
4	Heated Seat Element Connector - Passenger Cushion (KA1)

Scheme 15

Callout	Component Name
1	Driver Door
2	Left Front Door Harness
3	Inflatable Restraint Side Impact Sensor (SIS) - Left

Scheme 16

Callout	Component Name
1	Front Passenger Door
2	Inflatable Restraint Side Impact Sensor (SIS) - Right
3	Right Front Door Harness

Scheme 17

Callout	Component Name
1	Lower Console
2	Inflatable Restraint Sensing and Diagnostic Module (SDM)

Scheme 18

Callout	Component Name
1	Fuse Block Connector - Rear C1
2	Body Control Module (BCM) Connector C2
3	Body Control Module (BCM) Connector C1
4	I/P Harness
5	Rollover Sensor
6	C304

SIR Zone Identification Views

The SIR Zone Identification Views shown below illustrate the approximate location of all SIR components available for the vehicle. This will assist in determining the appropriate SIR Disabling and Enabling Zones for a given service procedure, refer to SIR Disabling and Enabling Zones .

Scheme 19

Scheme 19: SIR Zone Identification Views

Callout	Component Name
1	Inflatable Restraint Front End Sensor - Right-Located on the front of the vehicle in the engine compartment
2	Inflatable Restraint I/P Module-Located at the top right under the instrument panel
3	Inflatable Restraint Side Impact Sensor (SIS) - Right-Located under right front door trim near the lower rear of door frame
4	Inflatable Restraint Passenger Presence System (PPS)-Located under the right front seat
5	Inflatable Restraint Roof Rail Module - Right-Located on the roof rail along the right front seat
6	Inflatable Restraint Seat Belt Pretensioner - Right-Located inside the right front seat
7	Inflatable Restraint Roof Rail Module - Left-Located on the roof rail along the left front seat
8	Inflatable Restraint Seat Belt Pretensioner - Left-Located inside the left front seat
9	Inflatable Restraint Sensing and Diagnostic Module (SDM)-Located under center floor console
10	Inflatable Restraint Side Impact Sensor (SIS) - Left-Located under left front door trim near the lower rear of door frame
11	Inflatable Restraint Steering Wheel Module-Located on the steering wheel
12	Battery-Located under hood on the left side
13	Inflatable Restraint Front End Sensor - Left-Located on the front of the vehicle in the engine compartment

Test Description

The numbers below refer to the step numbers on the diagnostic table.

5: This step tests for a short to ground, a high resistance, or an open in the seat belt tension sensor signal circuit.
6: This step tests for a short to ground, a high resistance, or an open in the seat belt tension sensor 5-volt reference circuit.
7: This step tests for a short to ground, a high resistance, or an open in the seat belt tension sensor low reference circuit.
8: This step tests for a short to voltage in the seat belt tension sensor signal circuit.
9: This step tests the seat belt tension sensor signal circuit input voltage range.
10: This step tests for a short to voltage in the seat belt tension sensor 5-volt reference circuit.
11: This step tests for a short to voltage in the seat belt tension sensor low reference circuit.

Step	Action	Value(s)	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	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2	Turn OFF the ignition. Disconnect the seat belt tension sensor connector. Inspect the seat belt tension sensor terminals and harness connector for damage or corrosion. Does the seat belt tension sensor terminals or harness connector exhibit any signs of damage or corrosion?		Go to Step 3	Go to Step 4
3	If the seat belt tension sensor terminals are damaged, replace the seat belt tension sensor. Refer to Seat Belt Buckle Replacement - Front in Seat Belts. If the seat belt tension retractor sensor harness connector is damaged, replace the connector. Refer to Connector Repairs in Wiring Systems. Did you complete the replacement?		Go to Step 15
4	Disconnect the Passenger Presence System (PPS) module connector. Inspect the PPS module connector for corrosion or damage. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?		Go to Step 15	Go to Step 5
5	Test the seat belt tension sensor signal circuit for the following: An open A high resistance A short to ground Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?		Go to Step 15	Go to Step 6
6	Test the seat belt tension sensor 5-volt reference circuit for the following: An open A high resistance A short to ground Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?		Go to Step 15	Go to Step 7
7	Test the seat belt tension sensor low reference circuit for the following: An open A high resistance A short to ground Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?		Go to Step 15	Go to Step 8
8	Turn ON the ignition, with the engine OFF. Test the seat belt tension sensor signal circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?		Go to Step 15	Go to Step 9
9	Test the seat belt tension sensor signal circuit input voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Does the voltage measure within the specified range ?	0.05-4.5 V	Go to Step 10	Go to Step 12
10	Test the seat belt tension sensor 5-volt reference circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?		Go to Step 15	Go to Step 11
11	Test the seat belt tension sensor low reference circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?		Go to Step 15	Go to Step 12
12	Replace the seat belt tension sensor. Refer to Seat Belt Buckle Replacement - Front in Seat Belts. Did you complete the replacement?		Go to Step 13
13	Reconnect all SIR and PPS components. Verify that all components, connectors, and connector position assurances (CPAs) are properly mounted. Use the scan tool in order to clear the SIR and PPS DTCs. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset?		Go to Step 14	System OK
14	Replace the PPS. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement?		Go to Step 15
15	Reconnect all SIR and PPS system components. Verify that all components, connectors, and CPAs are properly mounted. Use the scan tool in order to clear the SIR and PPS DTCs. Rezero the PPS. Refer to Passenger Presence System Programming and Setup in Programming and Setup. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset?		Go to Step 2	System OK

DTC 023

The numbers below refer to the step numbers on the diagnostic table.

2: This step inspects the PPS module connector.
3: This step inspects the main seat harness connector.
4: This step tests the PPS ground circuit for an open or high resistance.
5: This step tests the PPS ignition 1 voltage circuit for a short to ground, an open, or high resistance.

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	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2	Turn OFF the ignition. Disconnect the passenger presence system (PPS) module connector. Inspect the PPS module connector for corrosion or damage. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 7	Go to Step 3
3	Disconnect the main seat harness connector located under the RF seat. Refer to Power Seat Systems Connector End Views in Seats. Inspect both halves of the connector for corrosion or damage. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 7	Go to Step 4
4	Test the PPS ground circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 7	Go to Step 5
5	Test the PPS ignition 1 voltage circuit for a short to ground, an open, or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 7	Go to Step 6
6	Replace the PPS. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement?	Go to Step 7
7	Reconnect all SIR and PPS system components. Verify that all components, connectors, and connector position assurances (CPAs) are properly mounted. Use the scan tool in order to clear the SIR and PPS DTCs. Rezero the PPS. Refer to Passenger Presence System Programming and Setup in Programming and Setup. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset?	Go to Step 2	System OK

DTC 024

The numbers below refer to the step numbers on the diagnostic table.

2: This step tests for current PPS DTCs.
8: This step tests for a short to ground, a high resistance, or an open in the PPS class 2 serial data circuit.
9: This step tests for a short to voltage in the PPS class 2 serial data circuit.

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	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2	Install a scan tool. Turn ON the ignition, with the engine OFF. With a scan tool, request the passenger presence system (PPS) to flash DTCs. Refer to Passenger Presence System Flash Code Procedures . Does the PPS indicate that DTC 064 is current?	Go to Step 3	Go to Step 13
3	Does the scan tool indicate that DTC B0098 is current?	Go to DTC B0098	Go to Step 4
4	Turn OFF the ignition. Disconnect the PPS module connector. Refer to Inflatable Restraint Passenger Presence System Replacement - Front . Inspect the PPS module terminals and harness connector for damage or corrosion. Does the PPS module terminals or harness connector exhibit any signs of damage or corrosion?	Go to Step 5	Go to Step 6
5	If the PPS module terminals are damaged, replace the PPS. Refer to Inflatable Restraint Passenger Presence System Replacement - Front . If the PPS harness connector is damaged, replace the connector. Refer to Connector Repairs in Wiring Systems. Did you complete the replacement?	Go to Step 13
6	Disconnect the main seat harness connector located under the RF seat. Refer to Power Seat Systems Connector End Views in Seats. Inspect both halves of the connector for corrosion or damage. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 13	Go to Step 7
7	Disconnect the sensing and diagnostic module (SDM) connector. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement . Inspect the SDM connector for corrosion or damage. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 13	Go to Step 8
8	Test the PPS class 2 serial data circuit for a short to ground, a high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 13	Go to Step 9
9	Turn ON the ignition, with the engine OFF. Test the PPS class 2 serial data circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 13	Go to Step 10
10	Replace the PPS. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement?	Go to Step 11
11	Reconnect all SIR and PPS system components. Verify that all components, connectors, and connector position assurances (CPAs) are properly mounted. Use the scan tool in order to clear the SIR and PPS DTCs. Rezero the PPS. Refer to Passenger Presence System Programming and Setup in Programming and Setup. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset?	Go to Step 12	System OK
12	Replace the SDM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement?	Go to Step 13
13	Reconnect all SIR and PPS system components. Verify that all components, connectors, and CPAs are properly mounted. Use the scan tool in order to clear the SIR and PPS DTCs. Rezero the PPS. Refer to Passenger Presence System Programming and Setup in Programming and Setup. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset?	Go to Step 2	System OK

DTC 064

The numbers below refer to the step numbers on the diagnostic table.

2: This step inspects the PPS pressure sensor connector.
5: This step tests for a short to ground, a high resistance, or an open in the PPS sensor signal circuit.
6: This step tests for a short to ground, a high resistance, or an open in the PPS sensor 5-volt reference circuit.
7: This step tests for a short to ground, a high resistance, or an open in the PPS sensor low reference circuit.
8: This step tests for a short to voltage in the PPS sensor signal circuit.
9: This step tests the PPS sensor signal circuit input voltage range.
10: This step tests for a short to voltage in the PPS sensor 5-volt reference circuit.
11: This step tests for a short to voltage in the PPS sensor low reference circuit.

Step	Action	Value(s)	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	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2	Turn OFF the ignition. Disconnect the passenger presence system (PPS) pressure sensor connector. Refer to Inflatable Restraint Passenger Presence System Replacement - Front . Inspect the pressure sensor terminals and harness connector for damage or corrosion. Do the PPS pressure sensor terminals or the harness connector exhibit any signs of damage or corrosion?		Go to Step 3	Go to Step 4
3	If the PPS pressure sensor terminals are damaged, replace the PPS. Refer to Inflatable Restraint Passenger Presence System Replacement - Front . If the PPS pressure sensor harness connector is damaged, replace the connector. Refer to Connector Repairs in Wiring Systems. Did you complete the replacement?		Go to Step 13
4	Disconnect the PPS module connector. Refer to Inflatable Restraint Passenger Presence System Replacement - Front . Inspect the PPS module connector for corrosion or damage. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?		Go to Step 13	Go to Step 5
5	Test the PPS sensor signal circuit for a short to ground, a high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?		Go to Step 13	Go to Step 6
6	Test the PPS sensor 5-volt reference circuit for a short to ground, a high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?		Go to Step 13	Go to Step 7
7	Test the PPS sensor low reference circuit for a short to ground, a high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?		Go to Step 13	Go to Step 8
8	Turn ON the ignition, with the engine OFF. Test the PPS sensor signal circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?		Go to Step 13	Go to Step 9
9	Test the PPS sensor signal circuit input voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Does the voltage measure within the specified range?	0.05-4.5 V	Go to Step 10	Go to Step 12
10	Test the PPS sensor 5-volt reference circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?		Go to Step 13	Go to Step 11
11	Test the PPS sensor low reference circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?		Go to Step 13	Go to Step 12
12	Replace the PPS. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement?		Go to Step 13
13	Reconnect all SIR and PPS system components. Verify that all components, connectors, and connector position assurances (CPAs) are properly mounted. Use the scan tool in order to clear the SIR and PPS DTCs. Rezero the PPS. Refer to Passenger Presence System Programming and Setup in Programming and Setup. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset?		Go to Step 2	System OK

DTC 065

The numbers below refer to the step numbers on the diagnostic table.

4: This step tests if the malfunction is caused by the I/P module.
6: Determines which DTCs are present. If DTC B0012 or B0016 is present, test the I/P module for a short between high circuits and low circuits in stage 1 or stage 2. If DTC B0013 or B0017 is present, test the I/P module high circuits and low circuits for an open and for high resistance in stage 1 or stage 2. If DTC B0014 or B0018 is present, test the I/P module high and low circuits for a short-to-ground, and for a short-to-voltage in stage 1 or stage 2.

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	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2	Turn OFF the ignition. Disconnect the instrument panel (I/P) module in-line connector. Refer to Inflatable Restraint Instrument Panel Module Replacement . Inspect the component and harness sides of the in-line connector for the I/P module for damage or corrosion that may cause the malfunction. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Does connector exhibit any signs of damage or corrosion?	Go to Step 3	Go to Step 4
3	If the in-line connector for the I/P module is damaged, the I/P module must be replaced. Refer to Inflatable Restraint Instrument Panel Module Replacement . If the wiring harness side of the I/P module connector is damaged, replace the harness side of the connector. Refer to Connector Repairs in Wiring Systems. Did you complete the repair?	Go to Step 9
4	IMPORTANT: When installing J 38715-A SIR Driver/Passenger Load Tool for testing the dual stage I/P module, the correct 4-way load tool adapter connector must be used. See Special Tools . Failure to use the correct 4-way load tool connector will set additional codes when testing. Use J 38715-80 Adapter to connect the J 38715-A to the harness side of the I/P module connector. See Special Tools . Use BASE OF COLUMN and PASSENGER INFLATOR connectors. Turn ON the ignition, with the engine OFF. With the scan tool, request the SIR DTC display. Does the scan tool indicate that DTC B0012, B0013, B0014, B0016, B0017, or B0018 are current?	Go to Step 5	Go to Step 7
5	Turn OFF the ignition. Disconnect and remove both the J 38715-A and adapter. See Special Tools . Disconnect the inflatable restraint sensing and diagnostic module (SDM) connector. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement . Inspect the SDM connector for damage or corrosion that may cause a malfunction in the I/P module stage 1 or stage 2 high circuits and/or low circuits. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 9	Go to Step 6
6	If DTC B0012 or B0016 is present, test the I/P module for a short between the high and low circuits in stage 1 or stage 2. If DTC B0013 or B0017 is present, test the I/P module high and low circuits for an open and for high resistance in stage 1 or stage 2. If DTC B0014 or B0018 is present, test the I/P module high and low circuits for a short to ground and for a short to voltage in stage 1 or stage 2. If any of the conditions exist, refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 9	Go to Step 8
7	Turn OFF the ignition. Replace the I/P module. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement?	Go to Step 9
8	Turn OFF the ignition. Replace the SDM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement?	Go to Step 9
9	Connect all SIR components. Turn ON the ignition, with the engine OFF. Use the scan tool in order to clear the DTCs. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset?	Go to Step 2	System OK

IMPORTANT
When installing J 38715-A SIR Driver/Passenger Load Tool for testing the dual stage I/P module, the correct 4-way load tool adapter connector must be used. See Special Tools . Failure to use the correct 4-way load tool connector will set additional codes when testing.

DTC B0012, B0013, B0014, B0016, B0017, or B0018

The numbers below refer to the step numbers on the diagnostic table.

5: Tests if the malfunction is caused by the steering wheel module or by the steering wheel module coil.
7: Determines which DTCs are present. If DTC B0022 or B0042 is present, test the steering wheel module for a short between high and low circuits in stage 1 or stage 2. If DTC B0024 or B0043 is present, test the steering wheel module high and low circuits for an open and for high resistance in stage 1 or stage 2. If DTC B0026 or B0044 is present, test the steering wheel module high and low circuits for an open and for high resistance in stage 1 or stage 2.

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	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2	Turn OFF the ignition. Disconnect the steering wheel module coil in-line connector. Refer to Inflatable Restraint Steering Wheel Module Coil Replacement . Inspect the component and harness sides of the in-line connector for the steering wheel module coil for damage or corrosion that may cause the malfunction. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Does connector exhibit any signs of damage or corrosion?	Go to Step 3	Go to Step 4
3	If the in-line connector for the steering wheel module coil is damaged, the steering wheel module coil must be replaced. Refer to Inflatable Restraint Steering Wheel Module Coil Replacement . If the wiring harness side of steering wheel module coil in-line connector is damaged, replace the harness side of the connector. Refer to Connector Repairs in Wiring Systems. Did you complete the repair?	Go to Step 11
4	IMPORTANT: When installing J 38715-A SIR Driver/Passenger Load Tool for testing the dual stage steering wheel module, the correct 4-way load tool adapter connector must be used. See Special Tools . Failure to use the correct 4-way load tool connector will set additional codes when testing. Use J 38715-80 Adapter to connect the J 38715-A to the harness side of the steering wheel module coil connector. See Special Tools . Use BASE OF COLUMN and PASSENGER INFLATOR connectors. Turn ON the ignition, with the engine OFF. Use the scan tool to request SIR DTCs displayed. Does the scan tool indicate that DTC B0022, B0024, B0026, B0042, B0043, or B0044 are current?	Go to Step 6	Go to Step 5
5	Turn OFF the ignition. Disconnect and remove both the J 38715-A and adapter. See Special Tools . Connect the steering wheel module coil in-line connector. Remove the steering wheel module. Refer to Inflatable Restraint Steering Wheel Module Replacement . Use the J 38715-120 adapter to connect the J 38715-A to the upper steering wheel module coil connector on top of the steering column. See Special Tools . Use STEERING COLUMN and PASSENGER INFLATOR connectors. Turn ON the ignition, with the engine OFF. Use the scan tool to request SIR DTCs displayed. Does the scan tool indicate that DTC B0022, B0024, B0026, B0042, B0043, or B0044 are current?	Go to Step 9	Go to Step 8
6	Turn OFF the ignition. Disconnect and remove both the J 38715-A and adapter. See Special Tools . Disconnect the inflatable restraint sensing and diagnostic module (SDM) connector. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement . Inspect the SDM connector for damage or corrosion that may cause a malfunction in the steering wheel module stage 1 or stage 2 high and/or low circuits. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 11	Go to Step 7
7	If DTC B0022 or B0042 is present, test the steering wheel module for a short between the high and low circuits in stage 1 or stage 2. If DTC B0024 or B0043 is present, test the steering wheel module high and low circuits for a short to ground and for a short to voltage in stage 1 or stage 2. If DTC B0026 or B0044 is present, test the steering wheel module high and low circuits for an open and for high resistance in stage 1 or stage 2. If any of the above conditions exist, refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 11	Go to Step 10
8	Turn OFF the ignition. Replace the steering wheel module. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement?	Go to Step 11
9	Turn OFF the ignition. Replace the steering wheel module coil. Refer to Inflatable Restraint Steering Wheel Module Coil Replacement . Did you complete the replacement?	Go to Step 11
10	Turn OFF the ignition. Replace the SDM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement?	Go to Step 11
11	Connect all SIR components. Turn ON the ignition, with the engine OFF. Use the scan tool in order to clear the DTCs. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset?	Go to Step 2	System OK

IMPORTANT
When installing J 38715-A SIR Driver/Passenger Load Tool for testing the dual stage steering wheel module, the correct 4-way load tool adapter connector must be used. See Special Tools . Failure to use the correct 4-way load tool connector will set additional codes when testing.

DTC B0022, B0024, B0026, B0042, B0043, or B0044

The numbers below refer to the step number on the diagnostic table.

4: Tests to see if the malfunction is caused by the seat belt pretensioner-RF.
6: Tests to see what DTCs are present.

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	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2	Turn OFF the ignition. Disconnect the seat belt pretensioner-RF connector. Refer to Seat Belt Retractor Pretensioner Replacement - Front . Inspect the component and harness sides of the connector for the seat belt pretensioner for damage or corrosion that may cause the malfunction. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Does the connector exhibit any signs of damage or corrosion?	Go to Step 3	Go to Step 4
3	If the component side of the seat belt pretensioner-RF connector is damaged, the seat belt pretensioner must be replaced. Refer to Seat Belt Retractor Pretensioner Replacement - Front . If the wiring harness side of the seat belt pretensioner connector is damaged, replace the harness side of the connector. Refer to Connector Repairs in Wiring Systems. Did you complete the repair?	Go to Step 9
4	Use J 38715-30A adapter to connect the J 38715-A SIR Driver/Passenger Load Tool to the harness side of the seat belt pretensioner-RF connector. See Special Tools . Use the PASSENGER INFLATOR connector. Turn ON the ignition, with the engine OFF. With the scan tool, request the SIR DTC display. Does the scan tool indicate that DTC B0057, B0058, or B0059 are current?	Go to Step 5	Go to Step 7
5	Turn OFF the ignition. Disconnect and remove both the J 38715-A and adapter. See Special Tools . Disconnect the inflatable restraint sensing and diagnostic module (SDM) connector. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement . Inspect the SDM connector for damage or corrosion that may cause a malfunction in the seat belt pretensioner-RF high and/or low circuits. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 9	Go to Step 6
6	IMPORTANT: If the scan tool displays multiple codes, diagnose the open code first. If DTC B0057 is present, test for a short between the seat belt pretensioner-RF high and low circuits. If DTC B0058 is present, test the seat belt pretensioner-RF high and low circuits for an open and for high resistance. If DTC B0059 is present, test the seat belt pretensioner-RF high and low circuits for a short to ground and for a short to voltage. For all the above conditions refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 9	Go to Step 8
7	Turn OFF the ignition. Replace the seat belt pretensioner-RF. Refer to Seat Belt Retractor Pretensioner Replacement - Front . Did you complete the replacement?	Go to Step 9
8	Turn OFF the ignition. Replace the SDM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement?	Go to Step 9
9	Connect all SIR components. Turn ON the ignition, with the engine OFF. Use the scan tool in order to clear the DTCs. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset?	Go to Step 2	System OK

IMPORTANT
If the scan tool displays multiple codes, diagnose the open code first.

DTC B0057, B0058, or B0059

The numbers below refer to the step numbers on the diagnostic table.

4: This step tests to see if the malfunction is caused by the roof rail module - left.
6: This step tests to see what DTCs are present. If DTC B0061 is present, test for a short between the roof rail module - left high and low circuits. If DTC B0062 is present, test the roof rail module - left high and low circuits for an open and for high resistance. If DTC B0068 is present, test the roof rail module - left high and low circuits for a short to ground and for a short to voltage.

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	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2	Turn OFF the ignition. Disconnect the roof rail module - left connector. Refer to Inflatable Restraint Roof Rail Module Replacement - Front . Inspect the component and harness sides of the connector for the roof rail module for damage or corrosion that may cause the malfunction. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Does the connector exhibit any signs of damage or corrosion?	Go to Step 3	Go to Step 4
3	If the component side of the roof rail module - left connector is damaged, the roof rail module must be replaced. Refer to Inflatable Restraint Roof Rail Module Replacement - Front . If the wiring harness side of the roof rail module connector is damaged, replace the harness side of the connector. Refer to Connector Repairs in Wiring Systems. Did you complete the repair?	Go to Step 9
4	IMPORTANT: If scan tool display multiple codes diagnose the open code first. Use J 38715-30A adapter to connect the J 38715-A SIR Driver/Passenger Load Tool to the harness side of the roof rail module - left connector. See Special Tools . Use the PASSENGER INFLATOR connector. Turn ON the ignition, with the engine OFF. With the scan tool, request the SIR DTC display. Does the scan tool indicate that DTC B0061, B0062, or B0068 are current?	Go to Step 5	Go to Step 7
5	Turn OFF the ignition. Disconnect and remove both the J 38715-A and adapter. See Special Tools . Disconnect the inflatable restraint sensing and diagnostic module (SDM) connector. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement . Inspect the SDM connector for damage or corrosion that may cause a malfunction in the roof rail module - left high and/or low circuits. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 9	Go to Step 6
6	If DTC B0061 is present, test for a short between the roof rail module - left high and low circuits. If DTC B0062 is present, test the roof rail module - left high and low circuits for an open and for high resistance. If DTC B0068 is present, test the roof rail module - left high and low circuits for a short to ground and for a short to voltage. All the above conditions refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 9	Go to Step 8
7	Turn OFF the ignition. Replace the roof rail module - left. Refer to Inflatable Restraint Roof Rail Module Replacement - Front . Did you complete the replacement?	Go to Step 9
8	Turn OFF the ignition. Replace the SDM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement?	Go to Step 9
9	Connect all SIR components. Turn ON the ignition, with the engine OFF. Use the scan tool in order to clear the DTCs. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset?	Go to Step 2	System OK

IMPORTANT
If scan tool display multiple codes diagnose the open code first.

DTC B0061, B0062, or B0068

The numbers below refer to the step numbers on the diagnostic table.

4: This step tests to see if the malfunction is caused by the seat belt pretensioner - LF.
6: This step tests to see what DTCs are present.

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	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2	Turn OFF the ignition. Disconnect the seat belt pretensioner - LF connector. Refer to Seat Belt Retractor Pretensioner Replacement - Front . Inspect the component and harness sides of the connector for the seat belt pretensioner for damage or corrosion that may cause the malfunction. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Does the connector exhibit any signs of damage or corrosion?	Go to Step 3	Go to Step 4
3	If the component side of the seat belt pretensioner - LF connector is damaged, the seat belt pretensioner must be replaced. Refer to Seat Belt Retractor Pretensioner Replacement - Front . If the wiring harness side of the seat belt pretensioner connector is damaged, replace the harness side of the connector. Refer to Connector Repairs in Wiring Systems. Did you complete the repair?	Go to Step 9
4	IMPORTANT: If scan tool display multiple codes diagnose the open code first. Use J 38715-30A adapter to connect the J 38715-A SIR Driver/Passenger Load Tool to the harness side of the seat belt pretensioner - LF connector. See Special Tools . Use the PASSENGER INFLATOR connector. Turn ON the ignition, with the engine OFF. With the scan tool, request the SIR DTC display. Does the scan tool indicate that DTC B0064, B0065, or B0066 are current?	Go to Step 5	Go to Step 7
5	Turn OFF the ignition. Disconnect and remove both the J 38715-A and adapter. See Special Tools . Disconnect the inflatable restraint sensing and diagnostic module (SDM) connector. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement . Inspect the SDM connector for damage or corrosion that may cause a malfunction in the seat belt pretensioner - LF high and/or low circuits. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 9	Go to Step 6
6	If DTC B0064 is present, test for a short between the seat belt pretensioner - LF high and low circuits. If DTC B0065 is present, test the seat belt pretensioner - LF high and low circuits for an open and for high resistance. If DTC B0066 is present, test the seat belt pretensioner - LF high and low circuits for a short to ground and for a short to voltage. All the above conditions refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 9	Go to Step 8
7	Turn OFF the ignition. Replace the seat belt pretensioner - LF. Refer to Seat Belt Retractor Pretensioner Replacement - Front . Did you complete the replacement?	Go to Step 9
8	Turn OFF the ignition. Replace the SDM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement?	Go to Step 9
9	Connect all SIR components. Turn ON the ignition, with the engine OFF. Use the scan tool in order to clear the DTCs. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset?	Go to Step 2	System OK

IMPORTANT
If scan tool display multiple codes diagnose the open code first.

DTC B0064, B0065, or B0066

The numbers below refer to the step numbers on the diagnostic table.

4: This step tests to see if the malfunction is caused by the roof rail module - right.
6: This step tests to see what DTCs are present. If DTC B0069 is present, test for a short between the roof rail module - right high and low circuits. If DTC B0070 is present, test the roof rail module - right high and low circuits for an open and for high resistance. If DTC B0071 is present, test the roof rail module - right high and low circuits for a short to ground and for a short to voltage.

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	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2	Turn OFF the ignition. Disconnect the roof rail module - right connector. Refer to Inflatable Restraint Roof Rail Module Replacement - Front . Inspect the component and harness sides of the connector for the roof rail module for damage or corrosion that may cause the malfunction. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Does the connector exhibit any signs of damage or corrosion?	Go to Step 3	Go to Step 4
3	If the component side of the roof rail module - right connector is damaged, the roof rail module must be replaced. Refer to Inflatable Restraint Roof Rail Module Replacement - Front . If the wiring harness side of the roof rail module connector is damaged, replace the harness side of the connector. Refer to Connector Repairs in Wiring Systems. Did you complete the repair?	Go to Step 9
4	IMPORTANT: If scan tool display multiple codes diagnose the open code first. Use J 38715-30A Adapter to connect the J 38715-A SIR Driver/Passenger Load Tool to the harness side of the roof rail module - right connector. See Special Tools . Use the PASSENGER INFLATOR connector. Turn ON the ignition, with the engine OFF. With the scan tool, request the SIR DTC display. Does the scan tool indicate that DTC B0069, B0070, or B0071 are current?	Go to Step 5	Go to Step 7
5	Turn OFF the ignition. Disconnect and remove both the J 38715-A and adapter. See Special Tools . Disconnect the inflatable restraint sensing and diagnostic module (SDM) connector. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement . Inspect the SDM connector for damage or corrosion that may cause a malfunction in the roof rail module - right high and/or low circuits. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 9	Go to Step 6
6	If DTC B0069 is present, test for a short between the roof rail module - right high and low circuits. If DTC B0070 is present, test the roof rail module - right high and low circuits for an open and for high resistance. If DTC B0071 is present, test the roof rail module - right high and low circuits for a short to ground and for a short to voltage. All the above conditions refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 9	Go to Step 8
7	Turn OFF the ignition. Replace the roof rail module - right. Refer to Inflatable Restraint Roof Rail Module Replacement - Front . Did you complete the replacement?	Go to Step 9
8	Turn OFF the ignition. Replace the SDM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement?	Go to Step 9
9	Connect all SIR components. Turn ON the ignition, with the engine OFF. Use the scan tool in order to clear the DTCs. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset?	Go to Step 2	System OK

IMPORTANT
If scan tool display multiple codes diagnose the open code first.

DTC B0069, B0070, or B0071

The numbers below refer to the step numbers on the diagnostic table

2: This step tests the communication status of the SIS.
6: This step tests for a short to ground, a high resistance, or an open in the SIS signal circuit.
7: This step tests for a short to ground, a high resistance, or an open in the SIS voltage circuit.
8: This step tests for a short to voltage in the SIS signal and voltage circuits.

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	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2	Install a scan tool. Turn ON the ignition, with the engine OFF. With a scan tool, request the SIR DTC display. Does the scan tool indicate that either DTC B0079, B0080, B0081, or B0082 is current?	Go to Step 12	Go to Step 3
3	Turn OFF the ignition. If DTC B0077 is current, disconnect the left inflatable restraint side impact sensor (SIS) connector. If DTC B0078 is current, disconnect the right SIS connector. Refer to Inflatable Restraint Side Impact Sensor Replacement . Inspect both the SIS and harness connector terminals for damage or corrosion. Does the SIS terminals or harness connector exhibit any signs of damage or corrosion?	Go to Step 4	Go to Step 5
4	If the SIS terminals are damaged, replace the SIS. Refer to Inflatable Restraint Side Impact Sensor Replacement . If the SIS harness connector is damaged, replace the connector. Refer to Connector Repairs in Wiring Systems. Did you complete the replacement?	Go to Step 13
5	Disconnect the inflatable restraint sensing and diagnostic module (SDM) connector. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement . Inspect the SDM connector for corrosion or damage. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 13	Go to Step 6
6	If DTC B0077 is current, test the left SIS signal circuit for a short to ground, a high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. If DTC B0078 is current, test the right SIS signal circuit for a short to ground, a high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 13	Go to Step 7
7	If DTC B0077 is current, test the left SIS voltage circuit for a short to ground, a high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. If DTC B0078 is current, test the right SIS voltage circuit for a short to ground, a high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 13	Go to Step 8
8	Turn ON the ignition, with the engine OFF. If DTC B0077 is current, test the left SIS signal and voltage circuits for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. If DTC B0078 is current, test the right SIS signal and voltage circuits for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 13	Go to Step 9
9	For DTC B0077 replace the left SIS. For DTC B0078 replace the right SIS. Refer to Inflatable Restraint Side Impact Sensor Replacement . Did you complete the replacement?	Go to Step 10
10	Reconnect all SIR system components. Use the scan tool in order to Clear the DTCs. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset?	Go to Step 11	System OK
11	Replace the SDM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement?	Go to Step 13
12	For DTCs B0079 and B0080 replace the left SIS. For DTCs B0081 and B0082 replace the right SIS. Refer to Inflatable Restraint Side Impact Sensor Replacement . Did you complete the replacement?	Go to Step 13
13	Reconnect all SIR system components. Verify that all components, connectors, and connector position assurances (CPAs) are properly mounted. Use the scan tool in order to clear the DTCs. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset?	Go to Step 2	System OK

DTC B0077, B0078, B0079, B0080, B0081, or B0082

The numbers below refer to the step numbers on the diagnostic table

2: This step inspects the SPS connector and terminals.
6: This step tests for a short to ground, a high resistance, or an open in the SPS signal circuit.
7: This step tests for a short to ground, a high resistance, or an open in the SPS low reference circuit.
8: This step tests for a short to voltage in the SPS signal and low reference circuits.

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	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2	Turn OFF the ignition. If DTC B0083 is present, disconnect the right seat position sensor (SPS) located on the RF outboard seat track. If DTC B0084 is present, disconnect the left SPS located on the LF outboard seat track. Inspect both the SPS and harness connector terminals for the following conditions: Corrosion Terminal damage Poor connections/terminal tension Do the SPS terminals or harness connector exhibit any signs of corrosion, terminal damage, or poor connections?	Go to Step 3	Go to Step 4
3	If the SPS terminals are damaged, replace the SPS. Refer to Inflatable Restraint Seat Position Sensor Replacement . If the SPS harness connector is damaged, replace the connector. Refer to Connector Repairs in Wiring Systems. Did you complete the replacement?	Go to Step 12
4	If DTC B0083 is present, disconnect the right main seat harness connector located under the RF seat. If DTC B0084 is present, disconnect the left main seat harness connector located under the LF seat. Refer to Power Seat Systems Connector End Views in Seats. Inspect both halves of the connector for corrosion or damage. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 12	Go to Step 5
5	Disconnect the sensing and diagnostic module (SDM) connector. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement . Inspect the SDM connector for corrosion or damage. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 12	Go to Step 6
6	If DTC B0083 is current, test the right SPS signal circuit for a short to ground, a high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. If DTC B0084 is current, test the left SPS signal circuit for a short to ground, a high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 12	Go to Step 7
7	If DTC B0083 is current, test the right SPS low reference circuit for a short to ground, a high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. If DTC B0084 is current, test the left SPS low reference circuit for a short to ground, a high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 12	Go to Step 8
8	Turn ON the ignition, with the engine OFF. If DTC B0083 is current, test the right SPS signal and low reference circuits for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. If DTC B0084 is current, test the left SPS signal and low reference circuits for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 12	Go to Step 9
9	For DTC B0083 replace the right SPS. For DTC B0084 replace the left SPS. Refer to Inflatable Restraint Seat Position Sensor Replacement . Did you complete the replacement?	Go to Step 10
10	Reconnect all SIR system components. Use the scan tool in order to Clear the DTCs. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset?	Go to Step 11	System OK
11	Replace the SDM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement?	Go to Step 12
12	Reconnect all SIR system components. Verify that all components, connectors, and connector position assurances (CPAs) are properly mounted. Use the scan tool in order to clear the DTCs. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset?	Go to Step 2	System OK

DTC B0083 or B0084

The numbers below refer to the step numbers on the diagnostic table.

2: This step checks the PPS for any current or history DTCs.
3: This step inspects the PPS module connector.
4: This step inspects the main seat harness connector.
5: This step tests the PPS ground circuit for an open or high resistance.
6: This step tests the PPS ignition 1 voltage circuit for a short to ground, an open, or high resistance.
7: This step tests the PPS ground circuit for a short to voltage.

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	Go to Diagnostic System Check - Vehicle
2	Install a scan tool. Turn ON the ignition, with the engine OFF. IMPORTANT: If the passenger presence system (PPS) has any current or history DTCs stored, you must address the PPS DTCs before continuing with this diagnostic table. With a scan tool, request the PPS to flash DTCs. Refer to Passenger Presence System Flash Code Procedures . Does the PPS flash any current or history DTCs?	Go to Diagnostic Trouble Code (DTC) List - Vehicle	Go to Step 3
3	Turn OFF the ignition. Disconnect the PPS module connector. Inspect the PPS module connector for corrosion or damage. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition?	Go to Step 9	Go to Step 4
4	Disconnect the main seat harness connector located under the RF seat. Refer to Power Seat Systems Connector End Views in Seats. Inspect both halves of the connector for corrosion or damage. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition?	Go to Step 9	Go to Step 5
5	Test the PPS ground circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	Go to Step 9	Go to Step 6
6	Test the PPS ignition 1 voltage circuit for the following: A short to ground A high resistance An open Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	Go to Step 9	Go to Step 7
7	Reconnect the main seat harness connector. Turn ON the ignition, with the engine OFF. Test the PPS ground circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	Go to Step 9	Go to Step 8
8	Replace the PPS. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement?	Go to Step 9
9	Reconnect all SIR and PPS system components. Verify that all components, connectors, and connector position assurances (CPAs) are properly mounted. Use the scan tool in order to clear the SIR and PPS DTCs. Rezero the PPS. Refer to Passenger Presence System Programming and Setup in Programming and Setup. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset?	Go to Step 2	System OK

IMPORTANT
If the passenger presence system (PPS) has any current or history DTCs stored, you must address the PPS DTCs before continuing with this diagnostic table.

DTC B0092

The numbers below refer to the step numbers on the diagnostic table.

3: Inspects the PPS to make sure the correct part number was installed in the vehicle.
5: Inspects the SDM to make sure the correct part number was installed in the vehicle.

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	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2	Was the passenger presence system (PPS) replaced?	Go to Step 3	Go to Step 4
3	Inspect the PPS to make sure that the correct part number was installed in the vehicle. Was the correct PPS part number installed in the vehicle?	Go to Step 4	Go to Step 6
4	Was the inflatable restraint sensing and diagnostic module (SDM) replaced?	Go to Step 5	Go to Step 6
5	Inspect the SDM to make sure that the correct part number was installed in the vehicle. Was the correct SDM part number installed in the vehicle?	Go to Step 6	Go to Step 8
6	Replace the PPS. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement?	Go to Step 7
7	Reconnect all SIR and PPS system components. Verify that all components, connectors, and connector position assurances (CPAs) are properly mounted. Use the scan tool in order to clear the SIR and PPS DTCs. Rezero the PPS. Refer to Passenger Presence System Programming and Setup in Programming and Setup. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset?	Go to Step 8	System OK
8	Replace the SDM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement?	Go to Step 9
9	Reconnect all SIR and PPS system components. Verify that all components, connectors, and CPAs are properly mounted. Use the scan tool in order to clear the SIR and PPS DTCs. Rezero the PPS. Refer to Passenger Presence System Programming and Setup in Programming and Setup. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset?	Go to Step 2	System OK

DTC B0098

The numbers below refer to the step numbers on the diagnostic table

2: This step tests the communication status of the EFS.
6: This step tests for a short to ground, a high resistance, or an open in the EFS signal circuit.
7: This step tests for a short to ground, a high resistance, or an open in the EFS voltage circuit.
8: This step tests for a short to voltage in the EFS signal and voltage circuits.

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	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2	Install a scan tool. Turn ON the ignition, with the engine OFF. With a scan tool, request the SIR DTC display. Does the scan tool indicate that either DTC B0101, B0102, B0104, or B0105 is current?	Go to Step 12	Go to Step 3
3	Turn OFF the ignition. If DTC B0100 is current, disconnect the left electronic frontal sensor (EFS) connector. If DTC B0103 is current, disconnect the right EFS connector. Refer to Inflatable Restraint Front End Sensor Replacement . Inspect both EFS and harness connector terminals for damage or corrosion. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Do the EFS terminals or harness connector exhibit any signs of damage or corrosion?	Go to Step 4	Go to Step 5
4	If the EFS terminals are damaged, replace the EFS. Refer to Inflatable Restraint Front End Sensor Replacement . If the EFS harness connector is damaged, replace the connector. Refer to Connector Repairs in Wiring Systems. Did you complete the replacement?	Go to Step 13
5	Disconnect the inflatable restraint sensing and diagnostic module (SDM) connector. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement . Inspect the SDM connector for corrosion or damage. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 13	Go to Step 6
6	If DTC B0100 is current, test the left EFS signal circuit for a short to ground, a high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. If DTC B0103 is current, test the right EFS signal circuit for a short to ground, a high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 13	Go to Step 7
7	If DTC B0100 is current, test the left EFS voltage circuit for a short to ground, a high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. If DTC B0103 is current, test the right EFS voltage circuit for a short to ground, a high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 13	Go to Step 8
8	Turn ON the ignition, with the engine OFF. If DTC B0100 is current, test the left EFS signal and voltage circuits for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. If DTC B0103 is current, test the right EFS signal and voltage circuits for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 13	Go to Step 9
9	For DTC B0100 replace the left EFS. For DTC B0103 replace the right EFS. Refer to Inflatable Restraint Front End Sensor Replacement . Did you complete the replacement?	Go to Step 10
10	Reconnect all SIR system components. Use the scan tool in order to Clear the DTCs. Operate the vehicle within the Conditions for Running the DTC, as specified in the supporting text. Does the DTC reset?	Go to Step 11	System OK
11	Replace the SDM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement?	Go to Step 13
12	For DTC B0101 and B0102 replace the left EFS. For DTC B0104 and B0105 replace the right EFS. Refer to Inflatable Restraint Front End Sensor Replacement . Did you complete the replacement?	Go to Step 13
13	Reconnect all SIR system components. Verify that all components, connectors and connector position assurances (CPAs) are properly mounted. Use the scan tool in order to clear the DTCs. Operate the vehicle within the Conditions for Running the DTC, as specified in the supporting text. Does the DTC reset?	Go to Step 2	System OK

DTC B0100, B0101, B0102, B0103, B0104, or B0105

The numbers below refer to the step numbers on the diagnostic table.

2: This step checks to see if the correct VIN is programmed in the PCM.
4: This step checks to see if the BCM has been replaced.
5: This step explains the proper steps to perform after a BCM has been replaced in order for the BCM to operate properly.
6: This step checks to see if the correct VIN is programmed in the BCM.
7: This step explains how to properly program the VIN into the BCM.
8: This step checks to see if the SDM has been replaced.
10: This step explains how to properly setup the SDM and BCM.

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	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2	Install a scan tool. Turn ON the ignition, with the engine OFF. Use the scan tool to verify that the powertrain control module (PCM) is programmed with the correct VIN by comparing the VIN that is stored in the PCM to the VIN plate of the vehicle. Is the PCM programmed with the correct VIN?	Go to Step 4	Go to Step 3
3	Use the scan tool and/or the Techline machine to program the correct VIN into the PCM. Did you complete the programming procedure?	Go to Step 11
4	Was the body control module (BCM) replaced?	Go to Step 5	Go to Step 6
5	Program the BCM in order for the BCM to learn the restraints ID from the sensing and diagnostic module (SDM). Refer to Body Control Module (BCM) Programming/RPO Configuration in Computer/Integrating Systems. Did you complete the programming procedures?	Go to Step 10
6	Use the scan tool to verify that the BCM is programmed with the correct VIN by comparing the VIN that is stored in the BCM to the VIN that is stored in the PCM. Is the BCM programmed with the correct VIN?	Go to Step 8	Go to Step 7
7	Program the correct VIN into the BCM. Refer to Body Control Module (BCM) Programming/RPO Configuration in Computer/Integrating Systems. Did you complete the reprogramming procedure?	Go to Step 10
8	Was the SDM replaced?	Go to Step 10	Go to Step 9
9	Replace the inflatable restraint SDM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement?	Go to Step 10
10	Perform the Setup SDM Serial Number in BCM procedure. Refer to Control Module References in Computer/Integrating Systems. Did you complete the setup procedure?	Go to Step 11
11	Verify that all components, connectors, and connector position assurances (CPAs) are properly mounted. Use the scan tool in order to clear the DTCs. Turn the ignition switch OFF for 10 seconds. Are all SIR components properly mounted and connected?	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information

DTC B1001

The numbers below refer to the step numbers on the diagnostic table.

2: This step checks for any current PPS DTCs.
3: This step checks for the presence of DTC B1530.
4: This step replaces the SDM.
5: This step performs the SDM setup procedure.

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	Go to Diagnostic System Check - Vehicle
2	Install a scan tool. Turn ON the ignition, with the engine OFF. IMPORTANT: If the sensing and diagnostic module (SDM) has DTC B0092 or DTC B0098 stored as current, you must address those DTCs before continuing with this diagnostic table. With a scan tool, check for DTC B0092 or DTC B0098 is a current DTC. Is DTC B0092 or DTC B0098 stored as current DTC?	Go to Diagnostic Trouble Code (DTC) List - Vehicle	Go to Step 3
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
4	Replace the SDM. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement?	Go to Step 5
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

IMPORTANT
If the sensing and diagnostic module (SDM) has DTC B0092 or DTC B0098 stored as current, you must address those DTCs before continuing with this diagnostic table.

DTC B1530

The numbers below refer to the step numbers on the diagnostic table.

7: This step tests the ROS signal and ROS voltage circuits for an open or high resistance
8: This step tests between the ROS signal and ROS voltage circuits for continuity
9: This step tests the ROS signal circuit for a short to voltage

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	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2	Install a scan tool. Turn ON the ignition, with the engine OFF. Use the scan tool to request SIR DTCs displayed. Does the scan tool indicate that DTC B3856, or B3857 is current?	Go to Step 10	Go to Step 3
3	Turn OFF the ignition. 2. If DTC B3855 is current, disconnect the inflatable restraint rollover sensor (ROS) connector. Refer to Inflatable Restraint Vehicle Rollover Sensor Replacement . Inspect both the component and harness sides of the connector for damage or corrosion. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems. Does the connector exhibit any signs of damage or corrosion?	Go to Step 4	Go to Step 5
4	If the component side of the ROS connector is damaged, the ROS must be replaced. Refer to Inflatable Restraint Vehicle Rollover Sensor Replacement . If the harness side of the ROS connector is damaged, replace the harness side of the connector. Refer to Connector Repairs in Wiring Systems. Did you complete the repair?	Go to Step 11
5	Turn OFF the ignition. Disconnect the inflatable restraint sensing and diagnostic module (SDM) connector. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement . Inspect both the component and harness sides of the SDM connector for damage or corrosion. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems. Does the connector exhibit any signs of damage or corrosion?	Go to Step 6	Go to Step 7
6	If the component side of the SDM connector is damaged, the SDM must be replaced. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement . If the harness side of the SDM connector is damaged, replace the harness side of the connector. Refer to Connector Repairs in Wiring Systems. Did you complete the repair?	Go to Step 11
7	If DTC B3855 is current, test both the ROS signal and ROS voltage circuits for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 11	Go to Step 8
8	Test for continuity between the ROS signal circuit and the ROS voltage circuit on the ROS connector. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 11	Go to Step 9
9	Turn ON the ignition, with the engine OFF. Test the ROS signal for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 11	Go to Step 10
10	Turn OFF the ignition. If DTC B3855, B3856, or B3857 was current replace the ROS. Refer to Inflatable Restraint Vehicle Rollover Sensor Replacement . Did you complete the replacement?	Go to Step 11
11	Reconnect all SIR components. Use the scan tool in order to Clear the DTCs. Operate the vehicle within the Conditions for Running the DTC as specified in the text. Does the DTC reset?	Go to Step 12	System OK
12	Turn OFF the ignition. Replace the SDM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement?	Go to Step 13
13	Turn ON the ignition, with the engine OFF Use the scan tool in order to Clear the DTCs. Operate the vehicle within the Conditions for Running the DTC as specified in the text. Does the DTC reset?	Go to Step 2	System OK

DTC B3855, B3856, or B3857

The numbers below refer to the step numbers on the diagnostic table.

3: This step determines if ignition 1 voltage to the SDM is more than 9 volts.
4: This step determines if ignition 1 voltage to the SDM is more than 16 volts.
5: This step tests for an open or high resistance in the ignition 1 voltage circuit between the SDM and the SIR fuse.
6: This step tests for an open or high resistance in the ignition 1 voltage circuit that feeds the SIR fuse.
7: This step tests for an open or high resistance in the SDM ground circuit.

Step	Action	Value(s)	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	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2	Turn OFF the ignition. Observe the AIR BAG indicator while turning the ignition ON. Does the AIR BAG indicator flash 7 times?		Go to Step 3	Go to Step 9
3	Turn OFF the ignition. Install a scan tool. Turn ON the ignition, with the engine OFF. With a scan tool, request the ignition voltage parameter in the SIR data list. Does the ignition voltage displayed measure more than the specified value?	9 V	Go to Step 4	Go to Step 5
4	Does the ignition voltage displayed measure more than the specified value?	16 V	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information	Go to Step 8
5	Turn OFF the ignition. Test the ignition 1 voltage circuit between the sensing and diagnostic module (SDM) and the fuse block for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?		Go to Step 12	Go to Step 6
6	Test the ignition 1 voltage circuit that feeds the SIR fuse for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?		Go to Step 12	Go to Step 7
7	Test the sensing and SDM ground circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?		Go to Step 12	Go to Step 8
8	Turn OFF the ignition. Disconnect the SDM connector. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement . Inspect the SDM connector for corrosion or damage. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?		Go to Step 12	Go to Step 10
9	Disconnect the instrument panel cluster (IPC) connector. Refer to Instrument Panel Cluster (IPC) Replacement in Instrument Panel, Gages, and Console. Inspect the IPC connector for corrosion or damage. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?		Go to Step 12	Go to Step 11
10	Replace the SDM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement?		Go to Step 12
11	Replace the IPC. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement?		Go to Step 12
12	Reconnect all SIR and IPC system components. Verify that all components, connectors, and connector position assurances (CPAs) are properly mounted. Have all SIR and IPC components been properly connected and mounted?		Go to Diagnostic System Check - Vehicle in Vehicle DTC Information

Air Bag Indicator Circuit Malfunction

The numbers below refer to the step numbers on the diagnostic table.

4: This step tests the ignition 1 voltage circuit between the inside rearview mirror and the underhood fuse block for a short to ground, a high resistance, or an open.
5: This step tests the passenger air bag OFF indicator control circuit for a short to ground, a high resistance, or an open.
6: This step test the passenger air bag ON indicator control circuit for a short to ground, a high resistance, or an open.
7: This step tests the PPS module for proper operation.

Step	Action	Yes	No
Schematic Reference: SIR Schematics Connector End View Reference: SIR Connector End Views or Stationary Windows Connector End Views in Stationary Windows
1	Did you perform the Diagnostic System Check - Vehicle?	Go to Step 2	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2	Turn OFF the ignition. Disconnect the passenger presence system (PPS) module connector. Inspect the PPS module connector for corrosion or damage. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 10	Go to Step 3
3	Disconnect the inside rearview mirror connector located at the back of the mirror. Inspect the inside rearview mirror connector for corrosion or damage. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 10	Go to Step 4
4	Turn OFF the ignition. Test the ignition 1 voltage circuit between the inside rearview mirror and the underhood fuse block for a short to ground, a high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 10	Go to Step 5
5	Test the passenger air bag OFF indicator control circuit for a short to ground, a high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 10	Go to Step 6
6	Test the passenger air bag ON indicator control circuit for a short to ground, a high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 10	Go to Step 7
7	Turn OFF the ignition. Connect a test lamp between the ignition 1 voltage circuit and the passenger air bag OFF indicator control circuit at the inside rearview mirror connector terminals. Empty the front passenger seat. Turn On the ignition, with the engine OFF. Does the test lamp illuminate?	Go to Step 8	Go to Step 9
8	IMPORTANT: When replacing the inside rearview mirror, perform the Compass Calibration and Variance Procedure when the repair is complete. Replace the rearview mirror. Refer to Rearview Mirror Replacement in Stationary Windows.Did you complete the replacement?	Go to Step 10
9	Replace the PPS. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement?	Go to Step 10
10	Reconnect all PPS and rearview mirror system components. Verify that all components, connectors, and connector position assurances (CPAs) are properly mounted. Use the scan tool in order to clear the SIR and PPS DTCs. Rezero the PPS. Refer to Passenger Presence System Programming and Setup in Programming and Setup. Operate the system in order to verify the repair. Did you correct the condition?	System OK	Go to Step 2

IMPORTANT
When replacing the inside rearview mirror, perform the Compass Calibration and Variance Procedure when the repair is complete.

Passenger Presence System Indicator Circuit Malfunction

Frontal SIR System Description

The frontal Supplemental Inflatable Restraint (SIR) System consists of the following components

AIR BAG indicator located on the instrument panel cluster (IPC)
Driver and passenger knee bolsters
Inflatable restraint front end sensors (left/right)
Inflatable restraint PASSENGER AIR BAG ON/OFF indicator located on the rear view mirror
Inflatable restraint Passenger Presence System (PPS)
Inflatable restraint passenger seat belt tension sensor
Inflatable restraint seat position sensors (SPS) (left/right)
Inflatable restraint sensing and diagnostic module (SDM)
Inflatable restraint steering wheel module
Inflatable restraint steering wheel module coil
Inflatable restraint wiring harnesses
Seat belt pretensioners (left/right)
Steering wheel and column

A frontal collision of sufficient force will deploy the frontal air bags. The SDM contains a sensing device that converts vehicle velocity changes to an electrical signal. In the event of a frontal collision, the SDM receives a signal from the front end sensors which assists the SDM in determining the severity of some frontal collisions. The SDM contains a microprocessor that performs calculations using the measured accelerations. The SDM compares these calculations to a value stored in memory. When the generated calculations exceed the stored value, the SDM will cause current to flow through the frontal deployment loops deploying the frontal air bags. Once the air bags are inflated they quickly deflate through the air bag vent holes. After the air bags have deployed, the SDM sets a diagnostic trouble code (DTC) and requests the IPC to turn the AIR BAG indicator ON. The SDM, instrument panel (I/P) module, steering wheel module, steering wheel module coil and the connecting wires makeup the frontal deployment loops. The SDM continuously monitors the deployment loops for malfunctions and requests the IPC to turn the AIR BAG indicator ON if a fault is detected.

Side SIR System Description (Front)

The side Supplemental Inflatable Restraint (SIR) System (front) consists of the following components

AIR BAG indicator located in the instrument panel cluster (IPC)
Inflatable restraint roof rail modules (left/right)
Inflatable restraint sensing and diagnostic module (SDM)
Inflatable restraint side impact sensors (SIS) (left/right)
Inflatable restraint vehicle rollover sensor
Inflatable restraint wiring harnesses

The roof rail modules (front) are located in the headliner along the roof rails. The roof rail modules contain a housing, inflatable air bag, initiating device, and a canister of gas generating material. The initiator is part of the roof rail module deployment loop. When a side impact of sufficient force occurs the SIS detects the impact and sends a signal to the SDM. The SDM compares the signal received from the SIS to a value stored in memory. When the generated signal exceeds the stored value, the SDM will cause current to flow through the side deployment loop deploying the roof rail air bag. The SDM, roof rail modules (front) and the connecting wires makeup the side deployment loops. The SDM continuously monitors the deployment loops for malfunctions and turns the AIR BAG indicator ON if a fault is present. Each roof rail module (front) is equipped with a shorting bar located on the connector of the module. The shorting bar shorts the roof rail module deployment loop circuitry to prevent unwanted deployment of the air bag when servicing the inflator module.

Supplemental Inflatable Restraint System: Overview GMC Envoy II

SIR Schematic Icons

Scheme 1

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Scheme 4

Scheme 5

Scheme 6

Scheme 7

Scheme 8

Scheme 9

Scheme 10

Scheme 11

Scheme 12

Scheme 13

Scheme 14

Scheme 15

Scheme 16

Scheme 17

Scheme 18

SIR Zone Identification Views

Scheme 19

Test Description

Frontal SIR System Description

Side SIR System Description (Front)

More articles — Supplemental Inflatable Restraint System

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