NHTSA Complaint #11489979 — 2020 NISSAN TITAN

The problem I am writing about concerns this vehicle and recall #PC773 EGI HARNESS. Reference must also be made to Nissan #NTB20-89 dated December 8, 2020. I purchased this vehicle from Bates Nissan (5501 East Central Texas Expressway, Killeen TX 76543, 254-781-3837) on February 18, 2021 used with 5448 miles. I was told that it had been owned by an employee at the dealership. It is my understanding, as described in NTB20-89, that a Nissan initiated "stop sale" was put into effect in December of 2020. However, Bates Nissan failed to complete this recall prior to selling it to me and did not inform me that there was an open recall on this vehicle. On July 22, 2022 I had a Nissan dealer (LeBrun Nissan, 396 Grant Ave, Auburn NY 13021, 315-253-7700) attempt to perform this recall. The technician did not find any evidence of visible damage on or near the transmission power wires OEM splice, however step 25's "continuity test" of the transmission power wire failed. I am a highly skilled engineer and have reviewed NTB20-89, and find that the transmission power wire continuity test to battery ground is flawed for the following reasons. 1) The process does not isolate (disconnect all ends) the transmission power wire. Therefore, it quite likely that some DVOM's will show continuity to battery ground causing a false positive. 2) Since the recall is to determine if this wires insulation has failed, a continuity test is not appropriate since it cannot measure the integrity of the wire insulation. Therefore, this test could also test as a false negative and allow vehicles to return to service with insulation that is still compromised/weak. Instead, an insulation dielectric test should be performed on this wire. Issue #2 is concerning, since vehicle safety may be at risk and is the primary reason I am informing NHTSA. My hope is that NHTSA has technical people that can review NTB20-89 and discuss with Nissan. I have no confidence that Nissan can fix this issue.