DTC 71 &/Or 75 - Internal DERM Fault: Description

Diagnostic Trouble Codes (DTCs) 71 and 75 signify an internal DERM fault. The codes set when DERM power supply reserve voltage charge or discharge time fails for 3 consecutive ignition cycles, DERM is unable to read from or write to EEPROM, DRIVER 36VLR or PASSENGER 36VLR is greater than a specified value for 500 milliseconds, or DERM calculated number for vehicle in which it is installed does not match value stored in EEPROM.