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.
- TEST FOR INTERMITTENT CONDITION NOTE:
Make sure the battery is fully charged and the charging system is operating properly before proceeding.
- Turn the ignition on.
- Using a scan tool, record and erase Diagnostic Trouble Codes (DTCs).
- Turn the ignition off.
- Start the engine and let it run.
- Using a scan tool, read DTCs.
Is the DTC active?
Yes
- Go To 2
No
- The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Look for chafed, pierced, pinched, or partially broken wires and broken, bent, pushed out, spread, corroded, or contaminated terminals.
- Perform the BODY VERIFICATION TEST. Refer to BODY CONTROL MODULE (BCM) - BODY VERIFICATION TEST - 500 - EXCEPT ELECTRIC .
- CHECK DRIVER SEAT LED DRIVER OUTPUT CIRCUIT FOR A SHORT TO BATTERY
- Turn the ignition off.
- Using a 12-volt test light connected to ground, test the Driver Seat Head Driver Output circuit.
Does the test light illuminate brightly?
Yes
- Repair the Driver Seat Head Driver Output circuit for a short to voltage.
- Perform the BODY VERIFICATION TEST. Refer to BODY CONTROL MODULE (BCM) - BODY VERIFICATION TEST - 500 - EXCEPT ELECTRIC .
No
- Go To 3
- CHECK FOR BCM MALFUNCTION
- Using a 12-volt test light connected to ground, test the Driver Seat LED Driver Output circuit.
- With the scan tool, actuate the Driver Heated Seat Relay.
Does the test light illuminate brightly?
Yes
- Replace the Heated Seat Switch according to the service information. Refer to SWITCH, HEATED SEAT .
- Perform the BODY VERIFICATION TEST. Refer to BODY CONTROL MODULE (BCM) - BODY VERIFICATION TEST - 500 - EXCEPT ELECTRIC .
No
- Replace the Body Control Module (BCM) according to the service information. Refer to MODULE, BODY CONTROL, REMOVAL .
- Perform the BODY VERIFICATION TEST. Refer to BODY CONTROL MODULE (BCM) - BODY VERIFICATION TEST - 500 - EXCEPT ELECTRIC .