Circuit/System Verification
WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
- Refer to SIR Service Precautions .
- Inspect all terminals for damage or corrosion when disconnecting connectors. Damage or corrosion in the following requires repair or replacement of the affected component/connector.
- Seat belt retractor pretensioner
- Inflatable restraint and sensing diagnostic module
- Seat belt retractor pretensioner wiring harness connector
- Inflatable restraint and sensing diagnostic module wiring harness 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.
- If the condition is intermittent or cannot be duplicated, disconnect the connectors and add Nyogel lubricant 760G. This procedure will correct the high resistance condition due to terminal fretting corrosion.
- Verify the appropriate scan tool Deployment Loop Resistance parameters stay consistently between 2.1 - 4.0 Ω without any spikes or dropouts while moving the harness near each connector listed below:
- F112 Seat Belt Retractor Pretensioner
- Any inline harness connector
- K36 Inflatable Restraint and Sensing Diagnostic Module
- If less than 2.1 Ω or greater than 4.0 Ω
Refer to Circuit/System Testing.
- If there are spikes or dropouts, perform the following
- Inspect each connector terminal and harness for damage or corrosion and repair as necessary.
- Ensure each connector and CPA is correctly seated.
- Go to next step: If between 2.1 - 4.0 Ω without any spikes or dropouts
- All OK.