Pinpoint Test K : U0146:00
WARNING: This page is about a different car, the 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
- K1 VERIFY THE CUSTOMER CONCERN
- Ignition ON.
- Verify there is an observable symptom present.
Is an observable symptom present?
Yes GO to K2 No Clear the DTC. The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition. - K2 CHECK THE COMMUNICATION NETWORK
- Using a diagnostic scan tool, perform the network test.
Does the GWM pass the network test?
Yes GO to K3 No REFER to: Communications Network . - K3 CHECK THE GWM (GATEWAY MODULE A) DTCS (DIAGNOSTIC TROUBLE CODES)
- Using a diagnostic scan tool, check GWM CMDTCs (continuous memory diagnostic trouble codes).
Is DTC U0146:00 or DTC U0146:87 set in other modules?
Yes REFER to: Communications Network . No GO to K4 - K4 RECHECK THE PAM (PARKING ASSIST CONTROL MODULE) DTCS (DIAGNOSTIC TROUBLE CODES).
- Using a diagnostic scan tool, clear the DTCs (diagnostic trouble codes).
- Operate the system and test for normal operation.
- Check the PAM CMDTCs (continuous memory diagnostic trouble codes).
Is DTC U0146:00 still present?
Yes GO to K5 No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition. - K5 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0146:00 OR DTC (DIAGNOSTIC TROUBLE CODE) U0146:87 SET IN OTHER MODULES
- Using a diagnostic scan tool, clear all DTCs (diagnostic trouble codes).
- Ignition OFF.
- Ignition ON.
- Wait 10 seconds.
- Using a diagnostic scan tool, retrieve the CMDTCs (continuous memory diagnostic trouble codes) from all modules.
Is DTC U0146:00 or DTC U0146:87 set in other modules?
Yes GO to K6 No GO to K7 - K6 CHECK FOR CORRECT GWM (GATEWAY MODULE A) OPERATION
- Ignition OFF.
- Disconnect and inspect all GWM and related in-line connectors.
- Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary
- Reconnect the GWM and related in-line connectors. Make sure they seat and latch correctly.
- Operate the system and determine if the concern is still present.
Is the concern still present?
Yes CHECK OASIS for any applicable TSBs (technical service bulletins). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no TSB addresses this concern, INSTALL a new GWM. REFER to: Gateway Module A (GWM) . No The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues. - K7 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
- Ignition OFF.
- Disconnect and inspect all BCM and related in-line connectors.
- Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary
- Reconnect the BCM and related in-line connectors. Make sure they seat and latch correctly.
- Operate the system and determine if the concern is still present.
Is the concern still present?
Yes CHECK OASIS for any applicable TSBs (technical service bulletins). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no TSB addresses this concern, Refer to BCM GUIDED ROUTINE . . No The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.