Technical Definition:
Generator Lamp / L Terminal Circuit
Trouble Code: P0621
Address: 0x0621
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits
Address: 0x0621
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits
Technical Description:
Possible Causes:
Possible Symptoms:
Generator Lamp L Control Circuit Malfunction
Possible Solutions:
OBD-II Trouble Code Type:
Diagnostic Step:
Tech Notes:
– Battery charge
– Faulty Generator
– Generator harness is open or shorted
– Generator circuit poor electrical connection
– Engine Control Module (ECM) controlled generator
– Faulty ECM