P0084
Exhaust Valve Control Solenoid Circuit (Bank 2)
DTC P0084, sometimes indicated as P008400 is an OBD diagnostic trouble code indicating a generic fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the air/fuel mixture causing exhaust valve control solenoid circuit (bank 2).
The exhaust valve control solenoid valve is a device that controls the exhaust valve in the engine. This valve is controlled by the engine control unit (ECU), which monitors the engine and its systems. If the ECU detects a problem with the exhaust valve control solenoid valve, it will set the DTC P0084 code.
There are several possible causes of this code, including a bad solenoid valve, a bad ECU, or a problem with the wiring or connectors. If the code is set, it is recommended that the cause be diagnosed and fixed as soon as possible. If the problem is not fixed, it could lead to more serious engine problems.
- P0084: Exhaust Valve Control Solenoid Circuit (Bank 2)
- P0084: Exhaust Valve Control Solenoid Circuit Bank 2
- P0084: Exhaust Valve-Bank2 Control Circuit
- P0084: Exhaust Valve Control Solenoid Circuit
- P0084: Exhaust valve control solenoid, bank 2 – circuit malfunction
- P0084 00: Exhaust Valve Control Solenoid Circuit (Cylinder Block # 2) Malfunction
- P0084 00: Exhaust valve control solenoid, bank 2 - circuit malfunction
2006 GMC SIERRA 1500 with 95969.0 miles
The service airbag light came on and off. Took it to dealer to have tested. Trouble code P0084, driver seat position sensor. Diagnostic showed fault is in airbag sensing and diagnostic module, showed false high resistance reading. Sensor kit and module needed replaced, almost $600 just for parts. Took 2 times at the dealer to get this fixed as first replacement parts did not work. No coverage by Gmc for failure of switch for airbag. Truck never in any type accident so airbag was never used. Surprised that there was no assistance from Gmc concerning this safety issue as working airbags are required.
AIR BAGS,