Test Description

The numbers below refer to the step numbers on the diagnostic table.

• Lack of communication may be due to a partial malfunction of the serial data circuit or due to a total malfunction of the serial data circuit. The specified procedure will determine the particular condition.
  DIAGNOSTIC REFERENCE VARIABLE EFFORT STEERING
  
  

  Step	Action	Value(s)	Yes	No
  1	Install a scan tool. Turn ON the ignition.	-	Go to Step 2	-
  2	Select the ECM display DTC function on the scan tool. Does the scan tool display any DTCs?	-	Go to	-
  3	Select the SSPS display DTC function on the scan tool. Does the scan tool display any DTCs?	-	Go to	Go to