DTC P0462-00: Fuel Gauge Sender Unit Circuit Low Input: Outline

DTC P0462:00 (PCM, VINs 7, L, M, US) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Fuel gauge sender unit circuit low input
Detection condition	The PCM monitors the fuel level signal and fuel gauge sender unit output voltage from the instrument cluster. If the PCM detects that the fuel level, fuel gauge sender unit, or fuel gauge sender unit (SUB) output voltage is too low, the PCM determines that the fuel gauge sender unit or fuel gauge sender unit (SUB) circuit has a malfunction.
Fail-safe	Not applicable
Possible cause	Fuel gauge sender unit connector or terminals malfunction Fuel gauge sender unit (SUB) connector or terminals malfunction Electrical supply unit (ESU) connector or terminals malfunction Short to ground in fuel gauge sender unit signal circuit Short to ground in fuel gauge sender unit (SUB) signal circuit Short circuit in fuel gauge sender unit signal circuit and ground circuit Short circuit in fuel gauge sender unit (SUB) signal circuit and ground circuit Fuel gauge sender unit malfunction Fuel gauge sender unit (SUB) malfunction Electrical supply unit (ESU) malfunction Instrument cluster malfunction PCM malfunction
Courtesy of MAZDA MOTORS CORP.