Flame monitor
â–¶ How to fix
Check the flame monitor. Measurement points 15 and 16 in the connector to the auxiliary heater control unit. Resistance:650 kOhm at -25 °C 1100 kOhm at +25 °C. Check internal connectors.
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
Detection
The flame monitor detects too high a temperature when starting.
Possible cause
The flame monitor registers a temperature higher than 75°C when starting, despite 4 minutes cooling with air.