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.

VERIFY THE DTC IS ACTIVE
NOTE:
This DTC must be active for the results of this test to be valid.
1. Turn the ignition on.
2. With the scan tool, read and record DTCs.
3. With the scan tool, read and record Freeze Fame information.
4. With the scan tool, erase DTCs.
5. Start the engine.
6. Press the brake pedal firmly and release.
7. With the scan tool, read and record DTCs.
  Is the DTC active at this time?
  
  Yes
  - Go To 2
  No
  - Perform ABS-INTERMITTENT CONDITION TEST. Refer to ABS INTERMITTENT CONDITION .
POWER CIRCUIT OPEN OR SHORTED

Fig 1: Checking Power Circuit For An Open Or A Short
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the Dynamics Sensor harness connector.
3. Using a 12-volt test light connected to ground, check the Fused B(+) circuit.
  Does the test light illuminate brightly?
  
  Yes
  - Go To 3
  No
  - Repair the Fused B(+) circuit for an open or short.
  - Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
GROUND CIRCUIT OPEN

Fig 2: Checking Ground Circuit For An Open
Courtesy of CHRYSLER GROUP, LLC
1. Using a 12-volt test light connected to 12-volts, check the (Z910) Ground circuit.
  Does the test light illuminate brightly?
  
  Yes
  - Replace the Dynamics Sensor in accordance with the Service Information. Refer to SENSOR, DYNAMICS, REMOVAL .
  - Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
  No
  - Repair the Ground circuit for an open.
  - Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .