Circuit/System Testing

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Circuit/System Testing
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: Refer to SIR Service PrecautionsΒ .
When removing the connectors inspect for damage or corrosion. Damage or corrosion to the following requires repair or replacement of the affected component/connector:
  • Pretensioner
  • Inflatable restraint module
  • SDM module
  • Inflatable restraint module wiring harness connector
  • SDM wiring harness connector
  1. Ignition OFF, disconnect the harness connector at the appropriate inflatable restraint module.
  2. With the appropriate adaptor, connect J 38715-AΒ  or SA9409Z-AΒ  in place of the inflatable restraint module.
  3. Ignition ON, verify DTC is set as current.
    • If DTC is not set or is set as history, replace the appropriate inflatable restraint module.
  4. Ignition OFF, disconnect J 38715-AΒ  or SA9409Z-AΒ  and the adaptor.
  5. Disconnect the harness connector at the SDM.
  6. Ignition ON, test for less than 1 volt between the appropriate high control circuit and ground.
    • I/P module stage 1 terminal 10
    • I/P module stage 2 terminal 6
    • Left roof rail module terminal 21
    • Right roof rail module terminal 22
    • Left side impact module terminal 13
    • Right side impact module terminal 14
    • Left seatbelt pretensioner terminal 26
    • Right seatbelt pretensioner terminal 25
    • LF retractor pretensioner terminal 17
    • RF retractor pretensioner terminal 18
    • If not the specified range, test the circuit for a short to voltage.
  7. Test for less than 1 volt between the appropriate low control circuit terminal and ground.
    • I/P module stage 1 terminal 11
    • I/P module stage 2 terminal 7
    • Left roof rail module terminal 20
    • Right roof rail module terminal 23
    • Left side impact module terminal 12
    • Right side impact module terminal 15
    • Left seatbelt pretensioner terminal 27
    • Right seatbelt pretensioner terminal 24
    • LF retractor pretensioner terminal 16
    • RF retractor pretensioner terminal 19
    • If not the specified range, test the circuit for a short to voltage.
  8. Ignition OFF, test for infinite resistance between the appropriate high control circuit terminal and ground.
    • I/P module stage 1 terminal 10
    • I/P module stage 2 terminal 6
    • Left roof rail module terminal 21
    • Right roof rail module terminal 22
    • Left side impact module terminal 13
    • Right side impact module terminal 14
    • Left seatbelt pretensioner terminal 26
    • Right seatbelt pretensioner terminal 25
    • LF retractor pretensioner terminal 17
    • RF retractor pretensioner terminal 18
    • If not the specified range, test the circuit for a short to ground.
  9. Test for infinite resistance between the appropriate low control circuit terminal and ground.
    • I/P module stage 1 terminal 11
    • I/P module stage 2 terminal 7
    • Left roof rail module terminal 20
    • Right roof rail module terminal 23
    • Left side impact module terminal 12
    • Right side impact module terminal 15
    • Left seatbelt pretensioner terminal 27
    • Right seatbelt pretensioner terminal 24
    • LF retractor pretensioner terminal 16
    • RF retractor pretensioner terminal 19
    • If not the specified range, test the circuit for a short to ground.
  10. Test for less then 1 ohm between the following high control circuit terminals.
    • I/P module stage 1 terminal B X1 and SDM terminal 10
    • I/P module stage 2 terminal B X2 and SDM terminal 6
    • Left roof rail module terminal B and SDM terminal 21
    • Right roof rail module terminal B and SDM terminal 22
    • Left side impact module terminal B and SDM terminal 13
    • Right side impact module terminal B and SDM terminal 14
    • Left seatbelt pretensioner terminal 2 and SDM terminal 25
    • Right seatbelt pretensioner terminal 2 and SDM terminal 26
    • LF retractor pretensioner terminal 1 and SDM terminal 17
    • RF retractor pretensioner terminal 1 and SDM terminal 18
    • If not the specified range, test the circuit for an open/high resistance.
  11. Test for less then 1 ohm between the following low control circuit terminals.
    • I/P module stage 1 terminal A X1 and SDM terminal 11
    • I/P module stage 2 terminal A X2 and SDM terminal 7
    • Left roof rail module terminal A and SDM terminal 20
    • Right roof rail module terminal A and SDM terminal 23
    • Left side impact module terminal A and SDM terminal 12
    • Right side impact module terminal A and SDM terminal 15
    • Left seatbelt pretensioner terminal 1 and SDM terminal 24
    • Right seatbelt pretensioner terminal 1 and SDM terminal 27
    • LF retractor pretensioner terminal 2 and SDM terminal 16
    • RF retractor pretensioner terminal 2 and SDM terminal 19
    • If not the specified range, test the circuit for an open/high resistance.
  12. If all circuits test normal, replace the SDM.
RENDER: 1.0x

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