DTC B0532: Fuel Level Sensor Short To Ground: Description
PZM monitors fuel level, and transmits this information over class 2 serial data line to Powertrain Control Module (PCM) and Instrument Panel Cluster (IPC). When ignition switch is in RUN position, PZM continually measures voltage at Brown 24-pin connector C1, terminal B12 (Purple/White wire) and determines position of sensor by calculating percentage of IGN-1 voltage present at terminal.
DTC B0532 will set if percentage of IGN-1 voltage at PZM Brown 24-pin connector C1, terminal B12 (Purple/White wire) is less than an acceptable level for at least 2 seconds. PZM will send a class 2 message to PCM that percentage of IGN-1 voltage is too low. DTC B0532 will clear if percentage of IGN-1 voltage meets or exceeds an acceptable level for at least one cycle.