Circuit/system testing

NOTE: Circuit/System verification must take place before Circuit/system testing.

With the ignition OFF, undo the cable contact from the sport mode switch S109. It may take up to 2 minutes for all systems to power down.
Test for less than 5 Ω between the ground circuit terminal 5 and ground.
If equal to or higher than 5 Ω:
1. 3.1. Ignition OFF.
2. 3.2. Check that there is less than 2 Ω in the ground circuit from one end to the other.
3. 3.3. If there is 2 Ω or higher, repair the resistance in the circuit.
4. 3.4. If there is less than 2 Ω, repair the resistance in the ground circuit.
If the resistance is lower than 5 Ω:
Ignition ON.
Use the scanning tool to check that the BCM's TCS contact parameter is Inactive.
If not Deactivated:
1. 7.1. Ignition OFF, disconnect X2 terminal block K9 on the BCM.
2. 7.2. Test for infinite resistance between signal circuit and ground.
3. 7.3. If there is lower than infinite resistance, repair the cable to the ground point on the circuit.
4. 7.4. If there is infinite resistance, replace the K9 BCM.
If Inactive:
Install a 3 A fuse between the signal circuit in terminal 9 and ground.
Use the scanning tool to check that the BCM's TCS contact parameter is Active.
If it is not Active:
1. 11.1. Ignition OFF, disconnect X2 connector on the K9 BCM, Ignition ON.
2. 11.2. Check that there is less than 1 V between the signal circuit and ground.
3. 11.3. If there is 1 V or higher, repair the power cable to the circuit.
4. 11.4. If there is less than 1 V
5. 11.5. Check whether there is less than 2 Ω in the signal circuit, end to end.
6. 11.6. If there is 2 Ω or higher, repair the resistance in the circuit.
7. 11.7. If there is less than 2 Ω, replace the K9 BCM.
If Active:
Check or replace the S109 sport mode switch.