Lexus NX: Precaution
Lexus NX Service Manual / Power Source & Network / 2ar-fxe (battery / Charging) / Charging System / Precaution
PRECAUTION
CAUTION:
- Before inspecting the high-voltage system or disconnecting the low voltage connector of the inverter with converter assembly, take safety precautions such as wearing insulated gloves and removing the service plug grip to prevent electrical shocks. After removing the service plug grip, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.
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After removing the service plug grip, wait for the specified time before touching the high voltage connectors or terminals. Then, check that the voltage is zero at the voltage inspection point on the inverter with converter assembly.
HINT:
- This is the time required to discharge the high voltage capacitor in the inverter with converter assembly.
- The waiting time required varies according to the model.
NOTICE:
- If the auxiliary battery is fully depleted or "READY" does not light up, recharge the auxiliary battery.
- Never disconnect the auxiliary battery while the power switch is on (READY).
- Before giving the auxiliary battery a quick charge, disconnect the auxiliary battery cables.
- Check the auxiliary battery again before the vehicle is returned to the customer.
- If the auxiliary battery has been removed, clean the auxiliary battery hose and check that it is not clogged.
- After installing the auxiliary battery hose, check that the hose is not kinked.
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System Diagram
SYSTEM DIAGRAM
How To Proceed With Troubleshooting
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. CONFIRM PROBLEM SYMPTOMS
NEXT 3. CUSTOMER PROBLEM ANALYSIS (a) Check if the vehicle has be
On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. CHECK AUXILIARY BATTERY (a) Check that the auxiliary battery cables are connected to the correct terminals. HINT: If they are not, connect them properly. (b) Check t
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Precaution
PRECAUTION WHEN DISCONNECTING AUXILIARY BATTERY CABLE NOTICE:
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal.
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When disconnecting and reconnecting the auxiliary battery.
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Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspect
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