0xD90E02 Trailer Control Modulator pressure sensor-Data Erratic, Intermittent Or Incorrect
â–¶ How to fix
Action: Check TCM PS SUP at the ECU side for 5V +- 250mV (apply UB to TCM SPL). If TCM PS SUP is outside this range, then replace wiring or TCM. If TCM PS SUP is in this range, then replace ECU.
What you'll see
Symptom:
System reaction
SystemReaction: ESP control restricted, HSA off, Trailer Control -CFC is off
Diagnostic depth
Detection
Detection: The error is set if the signal value measured in the B1 partition is different from the signal value measured in the B2 partition
Possible cause
Cause: Sensor supply is too high or too low, or electrical failure in the Central ECU.