SAE P3xxx-DTCs

Fuel and air ratios and additional emission regulations

SAE- DTC	DTC text	Corrective action
P3017	Electronic differential lock - intake valve for front left/rear right -N231- Short circuit to B +	Check Exhaust Flap Valve 1 -N321-. Refer to Exhaust Flap Valve 1 (vehicles with engine code BJS), checking
P3018	Exhaust Flap Valve 1 -N321- Short circuit to Ground (GND)
P3019	Exhaust Flap Valve 1 -N321- Open circuit
P3081	Engine temperature too low	Let engine warm up Coolant temperature must be at least 50 ° C. Refer to Diagnostic mode 1: Check measured values; PID 5, Coolant temperature

Fuel and air ratios

SAE-
DTC

DTC text

Corrective action

P3211

Exhaust-bank1-sensor1 Heater return connection

Check oxygen sensor heater for oxygen sensors before catalytic converter. Refer to Oxygen sensor heater for oxygen sensors before catalytic converter, checking

Check oxygen sensors and oxygen sensor control before catalytic converter. Refer to Oxygen sensors and oxygen sensor regulation before catalytic converter, checking