The Lemon IndexThe engine computer found an error in its stored programming.
Get it fixed soon. A few more days of normal driving is usually OK, but waiting can turn a small repair into a bigger one or a breakdown.
Failing engine computer. Then: needs reprogramming.
Owners named P0605 in 9 complaints to the U.S. government, most often on the Hyundai Sonata.
Cars owners report it on
Complaints that name P0605, by model. Raw counts, not a failure rate: popular models get more complaints.
Years owners report it on most: 2002 Nissan Sentra · 2011 Hyundai Sonata
The details
What P0605 means
The engine computer found an error in its stored programming.
Can I drive with P0605?
Get it fixed soon. A few more days of normal driving is usually OK, but waiting can turn a small repair into a bigger one or a breakdown.
44% of the owner complaints that name P0605 also say the car warning lights and electrical faults. A complaint can describe more than one problem, so this doesn't prove the code caused it.
Common causes of P0605
- Failing engine computer
- Needs reprogramming
A shop should confirm the cause with a scan and tests before replacing parts.
What owners describe
- Warning lights and electrical faults: 44% of complaints
- Loses power or goes into limp mode: 33% of complaints
- Stalls or shuts off: 22% of complaints
- Shakes, runs rough or misfires: 22% of complaints
Share of complaints naming the code whose text also mentions each problem.
Model years that report P0605 most
2002 Nissan Sentra (2), 2011 Hyundai Sonata (2).
Related codes
P0606 P0607 P0601 P0600 P060A P061A P061B P061C
Quick answers
What does P0605 mean?
Internal Control Module Read Only Memory (ROM) Error. The engine computer found an error in its stored programming.
Can I drive with P0605?
Get it fixed soon. A few more days of normal driving is usually OK, but waiting can turn a small repair into a bigger one or a breakdown.
What causes P0605?
Failing engine computer; Needs reprogramming.
Counts: NHTSA owner complaints whose text names P0605. A complaint is an owner's report, not a diagnosis. Meanings: the standard SAE J2012 definitions in our own words; manufacturer codes only where verified for that make. General information, not repair advice for your car.