Possible causes
– Engine Control Module (ECM) Harness power supply circuit is open or shorted
– Engine Control Module (ECM) Programming
– Faulty Engine Control Module (ECM)
– Engine Control Module (ECM) Programming
– Faulty Engine Control Module (ECM)
Tech description
Check the PCM fuse, if fuse is OK try erasing the code first and if the code comes back you may have to reprogram or replaced the PCM.
When is the obd code mean?
Indicates the PCM has experienced an internal memory fault.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
– Engine may not start
– Engine may not start
P0606 CHEVROLET OBD Code Description