P0381low severityPowertrain
Glow Plug/Heater Indicator Circuit
on 2010 Audi Q7 3.0L TDI V6 · AWD
What this code means
Malfunction in the glow plug indicator (dashboard wait-to-start light) circuit.
Symptoms
- Wait-to-start light not working
- No glow plug indication
- Light stays on too long
Common causes
- Burnt out indicator bulb
- Wiring issue
- Glow plug module fault
- Instrument cluster issue
Diagnostic steps
- Test indicator bulb
- Check wiring
- Test glow plug module output
Repair notes
Replace bulb or repair wiring.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1