Glow plug
â–¶ How to fix
Check the glow plug. See Internal wiring diagram under Connections. Measurement points 1 and 2 in connector B for the control unit. Resistance: 2 +/- 0.2 ohms. If necessary, renew the control unit.
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
Detection
Auxiliary heater fails to start.
Possible cause
Open circuit in the glow plug circuit.