Pinpoint Test Purpose
WARNING: This page does not describe the selected car, but rather 27 other vehicles, including the 2022 Lincoln Navigator, 2022 Lincoln Nautilus, 2022 Lincoln Corsair, 2022 Lincoln Aviator, and 2022 Ford Transit-350 HD. However, it is still accessible from the selected car via links, so may be relevant.
To verify the presence of DTC U045A and identify the correct Service Information for diagnosing the DTC concern.
- AW1: CHECK PSCM DTC
Carry out the PSCM self-test.
- Is DTC U045A:xx currently present and active in the PSCM?
Yes No Go to AW2. If the PSCM does NOT list DTC U0401 Invalid Data Received from the ECM/PCM, DISCONTINUE this test and REFER to the DTC Chart for diagnostic direction. - AW2: CHECK THE VEHICLE BATTERY AND CHARGING SYSTEM VOLTAGE
- Ignition ON, engine OFF.
- Refer to the Charging System General Information article and carry out Pinpoint Test A: Battery Condition Test (battery state of charge).
- Did the battery pass the condition test (battery state of charge)?
Yes No Go to AW3. INSTALL a new 12-volt battery. REFER to the Battery, Mounting and Cables article.
Go to AW3. - AW3: RECHECK THE PSCM DTC
- Ignition ON, engine OFF.
- Clear the PSCM DTCs.
- Ignition OFF.
Carry out the PSCM self-test.
- Is DTC U045A:xx currently present and active in the PSCM?
Yes No DIAGNOSE the PAM concern. REFER to the appropriate Parking Aid article. The concern is not present at this time and may have been set due to a low battery state of charge. The test is complete, no further action is required.