Component Testing
WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
M40 Rear Compartment Lid Latch
- Ignition/Vehicle » Off
- Disconnect the electrical connector:M40 Rear Compartment Lid Latch
- Connect a jumper wire between the test points:Ground terminal 2 &Ground
- Momentarily connect a 10 A fused jumper wire between the test points:Control terminal 1 &12 V
Verify the component turns On and Off when connecting and disconnecting the jumper wire:M40 Rear Compartment Lid Latch
- If the component does not turn On and Off
Replace the component:M40 Rear Compartment Lid Latch
- If the component turns On and Off
- If the component does not turn On and Off
- All OK.
S58A Rear Compartment Lid Unlatch Switch - Exterior
- Ignition/Vehicle » Off
- Disconnect the electrical connector:S58A Rear Compartment Lid Unlatch Switch - Exterior
- Test for infinite resistance between the test points:Signal terminal 1 &Ground terminal 2 - Switch »Not Pressed
- If less than infinite resistance
Replace the component:S58A Rear Compartment Lid Unlatch Switch - Exterior
- If infinite resistance
- If less than infinite resistance
- Test for less than 3 Ω between the test points:Signal terminal 1 &Ground terminal 2 - Switch »Pressed
- If 3 Ω or greater
Replace the component:S58A Rear Compartment Lid Unlatch Switch - Exterior
- If less than 3 Ω
- If 3 Ω or greater
- All OK.
S58B Rear Compartment Lid Unlatch Switch - Interior
- Ignition/Vehicle » Off
- Disconnect the electrical connector:S58B Rear Compartment Lid Unlatch Switch - Interior
- Test for infinite resistance between the test points:Signal terminal 1 &Ground terminal 2 - Switch »Not Pressed
- If less than infinite resistance
Replace the component:S58B Rear Compartment Lid Unlatch Switch - Interior
- If infinite resistance
- If less than infinite resistance
- Test for less than 3 Ω between the test points:Signal terminal 1 &Ground terminal 2 - Switch »Pressed
- If 3 Ω or greater
Replace the component:S58B Rear Compartment Lid Unlatch Switch - Interior
- If less than 3 Ω
- If 3 Ω or greater
- All OK.