P062EPowertrain
Powertrain · SAE
Injector Driver Circuit Bank 2 — Malfunction
Meaning
The ECM has detected a fault in the injector driver circuit for bank 2. The internal ECM driver responsible for activating the bank 2 injectors has an electrical anomaly that compromises its operation.
Common causes
- Short circuit or open circuit in the bank 2 injector wiring harness
- One or more bank 2 injectors with out-of-specification resistance overloading the driver
- Internal ECM driver failure for bank 2
- Oxidation or deterioration of bank 2 injector connectors
- ECM driver thermal overload
- Disturbed or broken ECM ground connection
Symptoms
- Malfunction indicator lamp (MIL) illuminated
- Multiple misfires across all bank 2 cylinders
- Engine running on bank 1 cylinders only
- Severe power reduction and rough running
- Possible limp-home mode active
Severity
High: failure of the entire bank 2 driver causes widespread misfire, catalytic converter risk, and severe performance degradation.
What to do
- Measure resistance of each bank 2 injector and check wiring for shorts
- Disconnect injectors one at a time to isolate any short circuits overloading the driver
- Verify ECM supply voltage and ground connections
- Read DTCs associated with individual bank 2 cylinders
- Replace the ECM if the internal driver is confirmed irreparably faulty