DTC P0056 GMC
HO2S Heater Control Circuit Bank 2 Sensor 2
HO2S Heater Control Circuit Bank 2 Sensor 2
Description
P0030, P0036, P0050, or P0056 The ignition voltage is between 11-32 volts. The engine speed is greater than 400 RPM. The DTCs run continuously when the above conditions are met for 1 second.
Cause and Solution
P0030, P0036, P0050, or P0056The ECM detects that the commanded state of the driver and the actual state of the control circuit do not match for greater than 7 seconds.
Video Guide
Diagnostic Info
- DTC Code: P0056
- Brand: GMC