Circuit/System Testing
WARNING: This page is about a different car, the 2009 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
Refer to SIR Service Precautions .
When removing connectors inspect for damage or corrosion. Damage or corrosion to the following requires repair or replacement of the affected component/connector:
When removing 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
- 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 J 38715-A in place of the inflatable 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 J 38715-A and the appropriate adaptor. See Special Tools .
- Disconnect the harness connector at the SDM.
- Ignition ON, test for less than 1 volt between the appropriate high control circuit listed below and ground:
- I/P module Stage 1 terminal B X1
- I/P module Stage 2 terminal B X2
- Left roof rail module terminal B
- Right roof rail module terminal B
- Left side impact module terminal B
- Right side impact module terminal B
- Left seat belt pretensioner terminal 2
- Right seat belt pretensioner terminal 2
- If not within the specified range, test the control circuit for a short to voltage.
- Test for less than 1 volt between the appropriate low control circuit terminal listed below and ground:
- I/P module Stage 1 terminal A X1
- I/P module Stage 2 terminal A X2
- Left roof rail module terminal A
- Right roof rail module terminal A
- Left side impact module terminal A
- Right side impact module terminal A
- Left seat belt pretensioner terminal 1
- Right seat belt pretensioner terminal 1
- If not within the specified range, test the control circuit for a short to voltage.
- Ignition OFF, test for infinite resistance between the appropriate high control circuit terminal listed below and ground:
- I/P module Stage 1 terminal B X1
- I/P module Stage 2 terminal B X2
- Left roof rail module terminal B
- Right roof rail module terminal B
- Left side impact module terminal B
- Right side impact module terminal B
- Left seat belt pretensioner terminal 2
- Right seat belt pretensioner terminal 2
- If not the specified value, test the control circuit for a short to ground.
- Test for infinite resistance between the appropriate low control circuit terminal listed below and ground:
- I/P module Stage 1 terminal A X1
- I/P module Stage 2 terminal A X2
- Left roof rail module terminal A
- Right roof rail module terminal A
- Left side impact module terminal A
- Right side impact module terminal A
- Left seat belt pretensioner terminal 1
- Right seat belt pretensioner terminal 1
- If not the specified value, test the control circuit for a short to ground.
- Test for less then 1 ohm between the appropriate high control circuit terminals listed below.
- 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 seat belt pretensioner terminal 2 and SDM terminal 25
- Right seat belt pretensioner terminal 2 and SDM terminal 26
- If not within the specified range, test the control circuit for an open/high resistance.
- Test for less then 1 ohm between the appropriate low control circuit terminals listed below:
- 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 seat belt pretensioner terminal 1 and SDM terminal 24
- Right seat belt pretensioner terminal 1 and SDM terminal 27
- If not within the specified range, test the control circuit for an open/high resistance.
- If all circuits test normal, replace the SDM.
IMPORTANT:
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.