Diagnostic Test

INTERMITTENT DTC
1. With the scan tool, erase the current WIN DTCs.
2. Turn the ignition off.
3. Arm the VTSS and wait one minute.
4. Disarm the VTSS and turn the ignition on.
  Does the scan tool display the same DTC?
  
  Yes
  - Go to step 2
  No
  - The condition that caused this symptom is currently not present. Inspect the related wiring harness for a possible intermittent condition. Look for any chafed, pierced, pinched or partially broken wires.
  - Perform the WIN VERIFICATION TEST. See DTC-Based Diagnostics/NODE, Wireless Ignition (WIN) - Standard Procedure
(A306)/(A935) FUSED B+ CIRCUIT OPEN
1. Gain access to the Steering Column Lock Module.
2. Disconnect the Steering Column Lock Module connector.
3. Using a 12-volt test light connected to ground, check the (A306) and (A935) Fused B(+) circuits in the Steering Column Lock Module connector.
  Does the test light illuminate brightly for both circuits?
  
  Yes
  - Go To step 3
  No
  - Repair the Fused B+ circuit for an open.
  - Perform the WIN VERIFICATION TEST. See DTC-Based Diagnostics/NODE, Wireless Ignition (WIN) - Standard Procedure
(Z906) GROUND CIRCUIT OPEN
1. Using a 12-volt test light connected to 12-volts, check the (Z906) Ground circuit at the Steering Column Lock Module connector.
  Does the test light illuminate brightly?
  
  Yes
  - Go To step 4
  No
  - Repair the (Z906) Ground circuit for an open.
  - Perform the WIN VERIFICATION TEST. See DTC-Based Diagnostics/NODE, Wireless Ignition (WIN) - Standard Procedure
(D508) COM-LIN TIRE PRESSURE MONITOR LAN CIRCUIT OPEN
1. Disconnect the WIN harness connector.
2. Measure the resistance of the (D508) COM-LIN Tire Pressure Monitor LAN circuit between the WIN and the Steering Column Lock Module connectors.
  Is the resistance below 1.0 ohms?
  
  Yes
  - Replace the Steering Column Lock Module in accordance with the Service Information.
  - Perform the WIN VERIFICATION TEST. See DTC-Based Diagnostics/NODE, Wireless Ignition (WIN) - Standard Procedure
  No
  - Repair the (D508) COM-LIN Tire Pressure Monitor LAN circuit for an open.
  - Perform the WIN VERIFICATION TEST. See DTC-Based Diagnostics/NODE, Wireless Ignition (WIN) - Standard Procedure