Circuit/System Verification
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.
- F100R Hood Hinge Actuator - Right
- Pedestrian Impact Detection Sensor - Right Front
- Pedestrian Impact Detection Sensor - Left Front
- Wiring harness connectors
- K36 Inflatable Restraint Sensing and 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.
- Verify "Deployment Loop 20 Type" Resistance parameter stays consistently between 2.1 and 4.0 Ω without any spikes or dropouts while moving the harness near each connector listed below:
- F100R Hood Hinge Actuator - Right
- Any inline harness connector
- K36 Inflatable Restraint Sensing and Diagnostic Module
-
- If less than 2.1 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
- Apply dielectric grease / lubricant (Nyogel 760G or equivalent, meeting GM specification 9986087) to each connector terminal
- Insure each connector and CPA is correctly seated.
- If within 2.1 and 4.0 Ω without any spikes or dropouts
- If less than 2.1 or greater than 4.0 Ω
- All OK
If the condition is intermittent or cannot be duplicated, disconnect the connectors and add dielectric grease / lubricant (Nyogel 760G or equivalent, meeting GM specification 9986087). This procedure will correct the high resistance condition due to terminal fretting corrosion.
Deployment Loop 20 Type may have a value of "Not Equipped" and still have a value in the Resistance field. This loop is the Right Hood Hinge Deployment loop.