Problem: This vehicle had erratic gauge and
warning light operation and the HVAC controls only worked
intermittently. The Malfunction Indicator Light (MIL) was on as
well as the ABS, TCS and Security lights. Additionally, the fuel
level gauge was inoperative.
Details: The tech found multiple DTCs: U1000,
U1001, U1610, P1574, P0462, P0463 and P1212. The symptoms all
were in line with the DTCs found. The technician researched each
of the DTCs and found them to be related through the same
network. At this point, he called ALLDATA Tech-Assist for some
Confirmed Repair: Based on previous experience
with Nissan Maxima vehicles, the ALLDATA Tech-Assist consultant
advised the tech to remove the A/C amplifier for inspection.
After removing the cover, the technician discovered two coins
inside. Upon further inspection, he found a burned area on the
circuit board where the coins had shorted out and burned a
circuit board component (see image). He replaced the A/C
amplifier, cleared the DTCs and went on a test drive. All of the
problems were remedied.