LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> BMW >> 1994 >> 850CSi >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self Diagnostics >> Diagnostic Tests >> DTC 37: Sensor Heater Relay >> Explanation
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC 37: Sensor Heater Relay: Explanation

Oxygen sensor heating relay is activated by DME control unit I. For this reason, a detected defect is only stored in the DME control unit I. The control unit detects a short or break at the relay or on its supply wire.

scientia non olet · About LEMON Manuals