Diagnostic Test

WARNING: This page is about a different car, the 2012 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

VERIFY DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE
NOTE:
Make sure the IOD fuse is installed and battery voltage is between 10 and 16 Volts before proceeding.
1. Using the scan tool, read active DTC's.
  Is this DTC active?
  
  Yes
  - Go To 2.
  No
  - Perform the ABS INTERMITTENT CONDITION diagnostic procedure. Refer to ABS INTERMITTENT CONDITION .
VERIFY THAT THE STEERING ANGLE SENSOR IS ACTIVE ON THE BUS
1. Turn the ignition on.
2. Using the scan tool, select Network Diagnostics.
3. Verify that the Steering Angle Sensor is active on the bus.
  Is the Steering Angle Sensor active on the bus?
  
  Yes
  - Go To 3.
  No
  - Refer to NO RESPONSE FROM THE STEERING ANGLE SENSOR (SAS) and perform the diagnostic procedure.
CLOCKSPRING (SAS)
WARNING:
To avoid serious or fatal injury on vehicles equipped with airbags, disable the Supplemental Restraint System (SRS) before attempting any steering wheel, steering column, airbag, seat belt tensioner, impact sensor, or instrument panel component diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the SRS. Failure to take the proper precautions could result in accidental airbag deployment.

NOTE:
Proper Clockspring (SAS) installation is crucial for proper operation.
1. Replace the Clockspring (SAS) in accordance with the Service Information. Refer to CLOCKSPRING, INSTALLATION .
2. Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
3. Using the scan tool, read ABS DTC's.
  Did DTC U0126-LOST COMMUNICATION WITH STEERING ANGLE SENSOR reset?
  
  Yes
  - Replace the Antilock Brakes System (ABS) Module in accordance with the Service Information.
  - Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
  No
  - Test Complete.