U0159
U0159-LOST COMMUNICATION WITH PARK ASSIST CONTROL MODULEU0159-Lost Communication With Park Assist Control Module:
WHEN MONITORED
- With the ignition on
- Battery voltage between 10 and 16 volts
- IOD fuse installed
- FCM is configured correctly
SET CONDITION
Bus messages not received from the Park Assist Module (PTS) for approximately 2 to 5 seconds.
POSSIBLE CAUSES
- CAN B BUS circuits open or shorted
- DTCs related to battery voltage, ignition, or VIN messages
- FCM not configured correctly
- Park assist module
- park assist module power or ground
- Module that set this DTC
DIAGNOSTIC TEST
1. VERIFY DTC IS ACTIVE
NOTE: Ensure the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding.
With the scan tool, read active DTCs.
Q: Is this DTC active?
YES: Go To 2
NO: Refer to the Stored Lost Communication test procedure. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
2. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCs
With the scan tool, read all active DTCs from all modules.
NOTE: Check for FCM configuration, CAN B or C hardware electrical, VIN Missing/Mismatch, battery or ignition related DTCs.
Q: Does the scan tool display any active DTCs to the conditions listed above?
YES: Diagnose and repair the DTC. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Go To 3
3. VERIFY THAT THE PTS IS ACTIVE ON THE BUS
Turn the ignition on.
With the scan tool, select Network Diagnostics.
Verify that the PTS is active on the bus.
Q: Is the PTS active on the bus?
YES: Go To 4
NO: Refer to no response test procedure. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
4. CHECK FOR ADDITIONAL COMMUNICATION RELATED DTCs
With the scan tool, select Network Diagnostics.
Q: Is there more than one module with active DTCs "Logged Against" the PTS?
YES: Replace/update the Park Assist Module (PTS). Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Replace/update the module that set this DTC Perform BODY VERIFICATION TEST - VER 1. Body Verification Test