Circuit/System Testing

Ignition OFF, disconnect the X1 connector at the K99 Steering Column Control Module and the connector at the S71 Steering Column Tilt Wheel and Telescope Switch. It may take up to 2 min for all vehicle systems to power down.
Ignition ON.
Test for infinite resistance between the signal circuit terminals listed below and ground at the S71 Steering Column Tilt Wheel and Telescope Switch harness.
- Terminal 2
- Terminal 3
- Terminal 5
- Terminal 6
- If less than infinite resistance
  Repair the short to ground on the circuit.
- Go to next step: If infinite resistance
Test for infinite resistance between the ground circuit terminal 1 and each signal circuit terminal listed below at the S71 Steering Column Tilt Wheel and Telescope Switch, with the switch in the released position.
- Terminal 2
- Terminal 3
- Terminal 5
- Terminal 6
- If less than infinite resistance
  Replace the S71 Steering Column Tilt Wheel and Telescope Switch.
- Go to next step: If infinite resistance
Test for less than 2 Ω between the ground circuit terminal 1 and each signal circuit terminal listed below at the S71 Steering Column Tilt Wheel and Telescope Switch with the switch in the pressed position.
- Terminal 2
- Terminal 3
- Terminal 5
- Terminal 6
- If 2 Ω or greater
1. Replace the S71 Steering Column Tilt Wheel and Telescope Switch.
2. Operate the system under the conditions for running the DTC. Verify the DTC does not reset.
  - If the DTC resets, Replace the K99 Steering Column Control Module.
  - Go to next step: If the DTC does not reset
3. All OK.
- Go to next step: If less than 2 Ω
Replace the K99 Steering Column Control Module.