Diagnostic Test

WARNING: This page is about a different car, the 2015 Fiat 500. However, it is still accessible from the selected car via links, so may be relevant.

PERFORM THE LONGITUDINAL G-SENSOR ROUTINE
1. Turn the ignition on.
2. With the scan tool, read and record the ABS DTCs.
  WARNING:
  To avoid possible serious or fatal injury, check brake capability is available before road testing.
3. With the scan tool, perform the "Longitudinal G-Sensor" routine and perform and the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
  Was the routine successful?
  
  Yes
  - Go To 2
  No
  - Perform the "Longitudinal G-Sensor" routine again, if still unsuccessful.
  - Go To 3
VERIFY THE DTC IS ACTIVE
1. Turn the ignition on.
2. With the scan tool, erase the DTCs.
  WARNING:
  To avoid possible serious or fatal injury, check brake capability is available before road testing.
3. Test drive the vehicle by turning the vehicle left and right in a curving manner at a velocity between 15 and 35 km/h (9 and 22 mph).
4. Park the vehicle.
5. With the scan tool, read ABS DTCs.
  Does the DTC remain active?
  
  Yes
  - Go To 3
  No
  - Test complete.
ANTI-LOCK BRAKE SYSTEM (ABS) MODULE
1. Turn the ignition off to the lock position.
2. Replace the Dynamics Sensor in accordance with service information. Refer to SENSOR, DYNAMICS, REMOVAL .
3. Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
4. Test drive the vehicle by turning the vehicle left and right in a curving manner at a velocity between 15 and 35 km/h (9 and 22 mph).
5. With the scan tool, read the DTCs.
  Does the DTC remain active?
  
  Yes
  - Replace the Anti-Lock Brake System (ABS) Module in accordance with the Service Information. Refer to MODULE, ANTI-LOCK BRAKE SYSTEM, REMOVAL .
  - Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
  No
  - Test complete.