Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 395 (SUPPLEMENTAL INFLATABLE RESTRAINT SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC B0014-B0045CIRCUIT/SYSTEM TESTING
2008 Chevrolet Chevy Express G3500, Van Passenger Extended
Circuit/System Testing
2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Circuit/System Testing
WARNING: This page is about a different car, the 2009 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
- Pretensioner
- Air bag module
- SDM module
- Air bag wiring harness connector
- SDM wiring harness connector
- Verify that the appropriate inflator restraint module connector and CPA are engaged.
- If the above condition is not found, make the appropriate repair.
- Ignition OFF, disconnect the harness connector at the appropriate inflatable restraint module.
- With the appropriate load tool adaptor, connect special tool J 38715-A in place of the inflator restraint module. See Special Tools .
- Ignition ON, with a scan tool, verify the appropriate DTC is set as current.
- If the DTC is not set or is set as history, cycle ignition OFF, disconnect the adapter and J 38715-A , reconnect the harness connector at the inflator restraint module, and cycle the ignition ON. See Special Tools . If the DTC resets after reconnecting the module, replace the inflator restraint module.
- Ignition OFF, disconnect special tool J 38715-A or SA9409Z-A and the adaptor. See Special Tools .
- Disconnect the harness connector at the SDM.
- Ignition ON, test for less than 1 volt between the applicable high control circuit terminal and ground.
- I/P Module - Stage 1 terminal 10
- I/P Module - Stage 2 terminal 6
- Left Front Roof Rail Module terminal 13
- Right Front Roof Rail Module terminal 14
- Seat Belt Pretensioner - Left terminal 25
- Seat Belt Pretensioner - Right terminal 26
- Side Impact Module - Left terminal 17
- Side Impact Module - Right terminal 18
- If greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the SDM.
- Test for less than 1 volt between the applicable low control circuit terminal and ground.
- I/P Module - Stage 1 terminal 11
- I/P Module - Stage 2 terminal 7
- Left Front Roof Rail Module terminal 12
- Right Front Roof Rail Module terminal 15
- Seat Belt Pretensioner - Left terminal 24
- Seat Belt Pretensioner - Right terminal 27
- Side Impact Module - Left terminal 16
- Side Impact Module - Right terminal 19
- If greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the SDM.
- Ignition OFF, test for infinite resistance between the applicable high control circuit terminal and ground.
- I/P Module - Stage 1 terminal 10
- I/P Module - Stage 2 terminal 6
- Left Front Roof Rail Module terminal 13
- Right Front Roof Rail Module terminal 14
- Seat Belt Pretensioner - Left terminal 25
- Seat Belt Pretensioner - Right terminal 26
- Side Impact Module - Left terminal 17
- Side Impact Module - Right terminal 18
- If not the specified value, test the circuit for a short to ground. If the circuit tests normal, replace the SDM.
- Test for infinite resistance between the applicable low control circuit terminal and ground.
- I/P Module - Stage 1 terminal 11
- I/P Module - Stage 2 terminal 7
- Left Front Roof Rail Module terminal 12
- Right Front Roof Rail Module terminal 15
- Seat Belt Pretensioner - Left terminal 24
- Seat Belt Pretensioner - Right terminal 27
- Side Impact Module - Left terminal 16
- Side Impact Module - Right terminal 19
- If not the specified value, test the circuit for a short to ground. If the circuit tests normal, replace the SDM.
- If DTC is not set or is set as history, replace the applicable air bag module.
- Test for less than 1 ohm of resistance between the following high control circuit terminals.
- I/P Module - Stage 1 terminal 10
- I/P Module - Stage 2 terminal 6
- Left Front Roof Rail Module terminal 13
- Right Front Roof Rail Module terminal 14
- Seat Belt Pretensioner - Left terminal 25
- Seat Belt Pretensioner - Right terminal 26
- Side Impact Module - Left terminal 17
- Side Impact Module - Right terminal 18
- If not within the specified range, test the circuit for an open/high resistance.
- Test for less than 1 ohm of resistance between the following low control circuit terminals.
- I/P Module - Stage 1 terminal 11
- I/P Module - Stage 2 terminal 7
- Left Front Roof Rail Module terminal 12
- Right Front Roof Rail Module terminal 15
- Seat Belt Pretensioner - Left terminal 24
- Seat Belt Pretensioner - Right terminal 27
- Side Impact Module - Left terminal 16
- Side Impact Module - Right terminal 19
- If not within the specified range, test the circuit for an open/high resistance.
- If all circuits test normal, replace the SDM.
IMPORTANT:
When removing the connectors inspect for damage or corrosion. Damage or corrosion to the following requires repair or replacement of the affected component/connector.
The connector and connector position assurance (CPA) may seat independent of each other. Both the connector and CPA should seat with an audible and/or tactile click. The CPA isolates the shorting-bars within the connector allowing the deployment circuit to operate properly.
The connector and connector position assurance (CPA) may seat independent of each other. Both the connector and CPA should seat with an audible and/or tactile click. The CPA isolates the shorting-bars within the connector allowing the deployment circuit to operate properly.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.