Control Module Fault
Table of contents
P0605 JEEP Possible Causes
- Engine Control Module (ECM) may be faulty
- ECM harness power supply circuit is open or shorted
- ECM harness ground circuit is open or shorted
How do I fix code P0605 JEEP?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Tech Notes
- Note from User:
- P0605 Indicates that the programming for your transmission functions has become corrupted. In your 2008 Jeep, you should have one module (PCM) that controls the engine & transmission, and most likely needs to be replaced. If you have a inpidual TCM, it will be a little black box (a bit bigger then a credit card) under your dash on the DRIVER SIDE.
- Note to some readers: If you are getting this code on an older vehicle (before 2003), especially Chrysler products, and you are getting this Code your TCM needs to be replaced. Flashing the TCM will not resolve this issue (maybe for 2 weeks at most). I say this because the info provided in the description of the Code is geared towards newer vehicles that use a PCM (or ECM as commonly referred to still).
Cost of diagnosing the P0605 JEEP code
The cost of diagnosing the P0605 JEEP code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Engine may not start
P0605 JEEP Description
The Engine Control Module (ECM) continuously monitors its own internal memory status, internal circuits, and output signals transmitted to the throttle actuator. This self-check insures that the ECM is functioning properly. If any malfunction is detected, the ECM sets the P0605 code and illuminates the MIL.