HV ECU Communication Malfunction
Table of contents
P3002 TOYOTA Possible Causes
- Faulty Hybrid Vehicle (HV) Electronic Control Unit (ECU)
- Hybrid Vehicle (HV) Electronic Control Unit (ECU) harness is open or shorted
- Hybrid Vehicle (HV) Electronic Control Unit (ECU) circuit poor electrical connection
How do I fix code P3002 TOYOTA?
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.
Cost of diagnosing the P3002 TOYOTA code
The cost of diagnosing the P3002 TOYOTA 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)
P3002 TOYOTA Description
The battery Electronic Control Unit (ECU) receives information of the AC ECU, system main relay connection signals, etc. sent from the Hybrid Vehicle (HV) ECU, and stores Diagnostic Trouble Codes (DTC) when an error is detected in the receives information.
