P0056 Diagnostic Trouble Code Discussion for February 2021
Heated Oxygen Sensor (Bank 2 Sensor 2) Heater Control Circuit Malfunction
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| Help Request | Posted | |
| 2010 Chevrolet Express 3500 4.8L MIL Lamp on VIN: 1GB3G2BA2A P0056: Bb2s2 heater cir. ... with the 4.8L engine and both are setting O2 codes primarily for bank 2 sensor 2. We have checked wiring multiple times and replaced sensors with Chevy O.E. sensors from the dealer, and the codes continually reset. Checked exhaust for leaks and ran th... |
February 22, 2021 | |
| 2010 Chevrolet Express 3500 4.8L MIL Lamp on VIN: 1GB3G2BA2A P0056: Bb2s2 heater cir. ... with the 4.8L engine and both are setting O2 codes primarily for bank 2 sensor 2. We have checked wiring multiple times and replaced sensors with Chevy O.E. sensors from the dealer, and the codes continually reset. Checked exhaust for leaks and ran th... |
February 23, 2021 |
