OBD-II code · Powertrain (generic, extended)
P213C EGR Throttle Control Circuit B Low
EGR throttle B drive line stuck low — short to ground. EGR mixes inert exhaust into intake to lower combustion peak temperature — too little raises NOx, too much causes misfires and rough running.
Is it safe to drive with P213C?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyShort to ground
Symptoms
- Check engine light on
- Pinging or knocking under load
- Power loss and hesitation
- Possible rough idle
- Failed emissions inspection (NOx)
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.7–3 h
- Emissions test
- Likely to fail
- Parts involved
- Egr Throttle B
Related codes
- P213AEGR Throttle Control Circuit B/Open
- P2141EGR Throttle Control Circuit A Low
- P2139Throttle/Pedal Position Sensor/Switch D/F Voltage Correlation
- P213BEGR Throttle Control Circuit B Range/Performance
- P213DEGR Throttle Control Circuit B High
- P213EFuel Injection System Fault - Forced Engine Shutdown
- P213FFuel Pump System Fault - Forced Engine Shutdown
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.