Fault codes › P0602

P0602

Control Module Programming Error

Generic code Computer Output Circuit High severity Hard repair
Free on OBD DashX

Want real-world data on P0602?

See which problems come with P0602, how often it shows up in other vehicles, and how to fix it — step by step.

  • Real-world fix data
  • How often it happens
  • Step-by-step repairs
See P0602 on OBD DashX No sign-up needed · available in 10 languages

iWhat P0602 means

  • The fault code P0602 indicates that there is an error in the programming of the engine control module (ECM), which may cause various drivability issues or prevent the engine from starting altogether.

!Possible symptoms

  • Check engine light illuminates
  • Engine may not start
  • Various drivability issues such as poor performance, stalling, or rough idling may occur

?Possible causes

  • Corrupted or incorrect programming of the ECM
  • Failed ECM hardware
  • Electrical problems in the ECM circuit
  • Improper installation or reprogramming of the ECM

Related parts

  • Engine Control Module (ECM): ECM is the part of the car computer that controls the engine system and performance. Problems lead to poor fuel economy, engine stalling & unwanted engine vibrations

Possible solutions

  • Reprogram or replace the ECM to correct the programming error
  • Check and repair any damaged wiring or connections in the ECM circuit
  • Ensure proper installation procedures are followed when replacing or reprogramming the ECM
  • Replace the ECM hardware if necessary
Free on OBD DashX

P0602 on OBD DashX

Real-world causes, how often this code shows up, and the fix — step by step.

Open P0602 No sign-up needed · available in 10 languages

Search fault codes

Scan your own car

Read and clear fault codes, live data and service resets with the CaRPM app.