P3021 TOYOTA - Battery Block 11 Becomes Weak
P3021 TOYOTA Possible Causes
- Faulty HV battery assembly
- Faulty Battery ECU
First diagnose P3021 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 P3021 TOYOTA code
Labor: 1.0The cost of diagnosing the P3021 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.
P3021 TOYOTA Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P3021 Toyota DescriptionIf there is an abnormal internal resistance or electromotive voltage in the hybrid battery blocks, the hybrid battery Electronic Control Unit (ECU) determines that a malfunction has occurred. When the malfunction detection condition is satisfied, the battery ECU illuminates the MIL and sets a Diagnostic Trouble Code (DTC).
P3021 TOYOTA More InformationNeed more information on how to fix the P3021 TOYOTA code?
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P3021 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 P3021 Toyota code? Have you replaced any parts?
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