- Vehicles
- Cars
EVSE fault light
Nissan LEAF EVSE FAULT light: charging cable or outlet fault
Risk level
High
Professional inspection is recommended.
Urgency
High
Quick answer
On the Nissan EVSE charging cable, the control box lights (READY green, POWER orange, FAULT red) show the problem. If they report poor outlet grounding or heat in the plug, stop using the outlet and call an electrician; if it is an internal fault, stop using the EVSE.
Safety first
Stop and check this first
- If the EVSE shows an internal fault, leakage current or PWM error, Nissan says to stop using it immediately; with heat in the plug, stop using that outlet.
Safe checks you can perform
- Initial light check
- Light combination while charging
- Outlet check by an electrician
Leave these tasks to a qualified professional
- Do not attempt this professional task: Outlet and earth check by an electrician
- Do not attempt this professional task: EVSE and vehicle test at a certified dealer
- Do not attempt this professional task: High-voltage isolation test after the EVSE FAULT light for leakage current
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Outlet and earth check by an electrician
What they doThe electrician tests earth continuity and resistance, checks outlet condition, terminal tightness and its protection, following NISSAN recommendations for EVSE charging.
They must show youthe measured earth values and the outlet condition.
In writingwhat was repaired in the outlet or installation and that it is suitable for EVSE charging.
EVSE and vehicle test at a certified dealer
What they doFor an internal fault, leakage current or PWM signal error, the dealer tests the EVSE and reads the codes from the car's on board charger.
They must show youthe EVSE test result and the codes read from the on board charger.
In writingwhether the EVSE is replaced or the car repaired, with the part reference.
High-voltage isolation test after the EVSE FAULT light for leakage current
What they doA technician qualified for high voltage, with the car unplugged and following Nissan's safety procedure, measures the isolation of the high-voltage circuit with the manufacturer's equipment and inspects orange cables and connectors.
They must show youthe measured isolation value against Nissan's specification and the condition of the cables and connectors checked.
In writingthe isolation test result, who did it with high-voltage training and whether it explains the EVSE FAULT light for leakage current.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Initial light check
- Who:
- you, when plugging the EVSE into the outlet.
- How:
- watch whether all three lights come on for 0.5 seconds when the EVSE is connected to the outlet.
- Result that matters:
- whether it runs the initial check.
- If none light up:
- check the outlet supply breaker; if supply is OK and they still do not light, the EVSE may be broken; stop using it.
- If it runs the check:
- the equipment gets power; go on to the light combination.
- Evidence to keep:
- short video of the lights when plugging in.
Evidence: Nissan LEAF 2023 owner's manual: NISSAN EVSE cable control box indicator light
Light combination while charging
- Who:
- you, with the EVSE connected to the car.
- How:
- note which lights are steady, which flash and their colour, and compare with the manual table.
- Result that matters:
- whether the combination points to the outlet or the EVSE.
- If it shows insufficient grounding or heat in the plug:
- stop using that outlet and have a qualified electrician check it.
- If it shows an internal fault, temperature circuit fault, leakage current or PWM error:
- stop using the EVSE and contact a NISSAN certified EV dealer.
- Evidence to keep:
- photo or video of the lights and the outlet used.
Evidence: Nissan LEAF 2023 owner's manual: NISSAN EVSE cable control box indicator light
Outlet check by an electrician
- Who:
- a qualified electrician, not you.
- How:
- check the outlet and its earth grounding according to NISSAN recommendations in the manual.
- Result that matters:
- whether the outlet is suitable for charging.
- If the outlet had a defect:
- after repair, try again; if the same indication continues, Nissan refers you to a certified dealer.
- If the outlet is fine and the indication continues:
- the problem is probably in the EVSE or the car; see a certified dealer.
- Evidence to keep:
- the electrician's report.
Opening the outlet or testing the earth is mains-voltage work: qualified electrician only.
Evidence: Nissan LEAF 2023 owner's manual: NISSAN EVSE cable control box indicator light
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Vehicles
- Brand
- Nissan
- Product type
- Cars
Known code variants
- caja de control del cable de carga Nissan
- cargador portátil Nissan LEAF luz roja
- EVSE FAULT light
- EVSE flashing green orange
- EVSE LEAF luz roja
- EVSE parpadea verde naranja
- Indicador AVERÍA rojo EVSE
- LEAF charging cable fault light
- Nissan EVSE control box red light
- Nissan EVSE FAULT
- Nissan granny charger red light
What it means
The NISSAN EVSE (Electric Vehicle Supply Equipment) control box combines three lights to show charging status and faults. Some combinations point to the installation: no power at the outlet, insufficient outlet earth grounding, or excessive heat in the plug, which may come from an outlet malfunction. Others point to the EVSE itself: plug temperature circuit, internal circuits, or leakage current and PWM signal error. A red light alone does not prove the cable is broken: the exact combination says whether to look at the outlet or the equipment.
Warnings and stop conditions
- Highsource verified
If the EVSE shows an internal fault, leakage current or PWM error, Nissan says to stop using it immediately; with heat in the plug, stop using that outlet.
Evidence: Nissan LEAF 2023 owner's manual: NISSAN EVSE cable control box indicator light
Symptoms and causes
Probable causes · in order
- Outlet without powerPossible
All lights off: the EVSE detects no power. Nissan says to check the outlet supply breaker before suspecting the cable.
Evidence: Nissan LEAF 2023 owner's manual: NISSAN EVSE cable control box indicator light
- Insufficient outlet earth groundingPossible
READY flashing green with POWER orange: the EVSE cannot detect sufficient grounding; a qualified electrician checks it.
Evidence: Nissan LEAF 2023 owner's manual: NISSAN EVSE cable control box indicator light
- Excessive heat in the plug from the outletPossible
The EVSE reduces or stops charging for safety; Nissan says this may be caused by an outlet malfunction.
Evidence: Nissan LEAF 2023 owner's manual: NISSAN EVSE cable control box indicator light
- Internal EVSE fault or leakage currentPossible
Combinations with red FAULT for internal circuits, or flashing red for leakage current or PWM signal error: the equipment must not be used further.
Evidence: Nissan LEAF 2023 owner's manual: NISSAN EVSE cable control box indicator light
Virtual technician
Does EVSE fault light still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
Nissan LEAF 2023 owner's manual: NISSAN EVSE cable control box indicator light
Nissan UK · 2023 · manual
- 2
Nissan LEAF 2023 manual del propietario: indicador de la caja de control del cable del EVSE
Nissan España · 2023 · manual
Was this entry useful?