P3030 TOYOTA - Disconnection Between Battery And ECU
P3030 TOYOTA Possible Causes
- Junction block assembly (busbar module)
- Faulty Battery ECU
First diagnose P3030 TOYOTA code
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 terminals.
Cost of diagnosing the P3030 TOYOTA code
Labor: 1.0The cost of diagnosing the P3030 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.
P3030 TOYOTA Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P3030 Toyota DescriptionThe battery Electronic Control Unit (ECU) monitors a voltage of the battery blocks to detect an open malfunction in internal battery voltage sensor circuits of the battery ECU and the wire harness between each battery block and battery ECU. If a voltage at one of the battery blocks is below a standard level or of all the battery blocks is within a specified range, the battery ECU judges that there is an open in the internal sensor circuit(s) or wire harness. The battery ECU then illuminates the Malfunction Indicator Lamp (MIL) and sets a Diagnostic Trouble Code (DTC).
P3030 TOYOTA More InformationNeed more information on how to fix the P3030 TOYOTA code?
Get Access to Factory Service Manuals
Need more help?Get the P3030 Toyota code diagnosed by a professional: Find a repair shop in your area
P3030 TOYOTA CommentsHelp us improve AutoCodes.com. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the P3030 Toyota code? Have you replaced any parts?
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