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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 588 (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 2010 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
- Buckle pretensioner
- Air bag
- SDM
- Buckle pretensioner wiring harness connector
- Air bag wiring harness connector
- SDM wiring harness connector
- Verify that the appropriate air bag or pretensioner 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 air bag or pretensioner.
- With the appropriate load tool adaptor, connect special tool J 38715-A in place of the air bag or pretensioner. 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 air bag or pretensioner, and cycle the ignition ON. If the DTC resets after reconnecting the air bag or pretensioner, replace the air bag or pretensioner. See Special Tools .
- 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 SDM high control circuit terminal and ground.
- Passenger Instrumant Panel Air Bag Stage 1 terminal 18
- Passenger Instrumant Panel Air Bag Stage 2 terminal 13
- Left Front Roof Rail Air Bag terminal 9
- Right Front Roof Rail Module terminal 10
- Driver Seat Belt Buckle Pretensioner terminal 56
- Passenger Seat Belt Buckle Pretensioner terminal 52
- Driver Seat Side Air Bag terminal 22
- Passenger Seat Side Air Bag terminal 21
- If greater than the specified range, test the circuit for a short to voltage.
- Test for less than 1 volt between the applicable SDM low control circuit terminal and ground.
- Passenger Instrumant Panel Air Bag Stage 1 terminal 19
- Passenger Instrumant Panel Air Bag Stage 2 terminal 12
- Left Front Roof Rail Air Bag terminal 8
- Right Front Roof Rail Module terminal 11
- Driver Seat Belt Buckle Pretensioner terminal 57
- Passenger Seat Belt Buckle Pretensioner terminal 52
- Driver Seat Side Air Bag terminal 23
- Passenger Seat Side Air Bag terminal 20
- If greater than the specified range, test the circuit for a short to voltage.
- Ignition OFF, test for infinite resistance between the applicable SDM high control circuit terminal and ground.
- Passenger Instrumant Panel Air Bag Stage 1 terminal 18
- Passenger Instrumant Panel Air Bag Stage 2 terminal 13
- Left Front Roof Rail Air Bag terminal 9
- Right Front Roof Rail Module terminal 10
- Driver Seat Belt Buckle Pretensioner terminal 56
- Passenger Seat Belt Buckle Pretensioner terminal 52
- Driver Seat Side Air Bag terminal 22
- Passenger Seat Side Air Bag terminal 21
- If less than the specified value, test the circuit for a short to ground.
- Test for infinite resistance between the applicable SDM low control circuit terminal and ground.
- Passenger Instrumant Panel Air Bag Stage 1 terminal 19
- Passenger Instrumant Panel Air Bag Stage 2 terminal 12
- Left Front Roof Rail Air Bag terminal 8
- Right Front Roof Rail Module terminal 11
- Driver Seat Belt Buckle Pretensioner terminal 57
- Passenger Seat Belt Buckle Pretensioner terminal 52
- Driver Seat Side Air Bag terminal 23
- Passenger Seat Side Air Bag terminal 20
- If less than the specified value, test the circuit for a short to ground.
- 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.
- Passenger Instrumant Panel Air Bag Stage 1 terminal A1 and SDM terminal 18
- Passenger Instrumant Panel Air Bag Stage 2 terminal B1 and SDM terminal 13
- Left Front Roof Rail Air Bag terminal 1 and SDM terminal 9
- Right Front Roof Rail Air Bag terminal 1 and SDM terminal 10
- Driver Seat Belt Buckle Pretensioner terminal 2 and SDM terminal 56
- Passenger Seat Belt Buckle Pretensioner terminal 2 and SDM terminal 52
- Driver Seat Side Air Bag terminal 1 and SDM terminal 22
- Passenger Seat Side Air Bag terminal 1 and SDM terminal 22
- If greater than the specified range, test the circuit for an open/high resistance.
- Test for less than 1 ohm between the following low control circuit terminals.
- Passenger Instrumant Panel Air Bag Stage 1 terminal A2 and SDM terminal 19
- Passenger Instrumant Panel Air Bag Stage 2 terminal B2 and SDM terminal 12
- Left Front Roof Rail Air Bag terminal 2 and SDM terminal 8
- Right Front Roof Rail Air Bag terminal 2 and SDM terminal 11
- Driver Seat Belt Buckle Pretensioner terminal 1 and SDM terminal 57
- Passenger Seat Belt Buckle Pretensioner terminal 1 and SDM terminal 53
- Driver Seat Side Air Bag terminal 2 and SDM terminal 23
- Passenger Seat Side Air Bag terminal 1 and SDM terminal 20
- If greater than 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.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.