Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSTOYOTA2020PRIUS PRIME LIMITEDREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEMSPLUG-IN CHARGE CONTROL SYSTEM - DIAGNOSTIC CODESPLUG-IN CHARGE CONTROL SYSTEMDTC P1CA4-00: CHARGER PRE-CHARGING MALFUNCTION [09/2016 - ]DESCRIPTION
2020 Toyota Prius Prime Limited
DTC P1CA4-00: Charger Pre-charging Malfunction [09/2016 - ]: Description
2020 Toyota Prius Prime LimitedSECTION Description
The charge control ECU built into the electric vehicle charger assembly monitors its internal operation. If it detects a precharge malfunction, it stores a DTC. If these DTCs are output, replace the electric vehicle charger assembly.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
|---|---|---|---|---|---|
| P1CA4-00 | Charger Pre-charging Malfunction | After plug-in charging is performed, precharge has not been completed for a certain amount of time. (1 trip detection logic) |
Electric vehicle charger assembly | Comes on | Master Warning Light: Comes on |
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.