Lexus NX: On-vehicle Inspection
Lexus NX Service Manual / Engine & Hybrid System / 2ar-fxe (cooling) / Cooling Fan System / On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT COOLING FAN SYSTEM
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Electric Cooling Fan.
Powertrain > Engine and ECT > Active Test| Tester Display |
|---|
| Control the Electric Cooling Fan |
| (e) Check the operation of the cooling fans while operating them using the Techstream. OK:
If the cooling fan motor does not operate, check the cooling fan circuit. Click here |
|
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READ NEXT:
Cooling Fan Circuit
DESCRIPTION The ECM calculates an appropriate cooling fan speed based on the engine coolant temperature, air conditioning switch condition, refrigerant pressure, hybrid coolant temperature, engine spe
Cooling System
On-vehicle InspectionON-VEHICLE INSPECTION PROCEDURE 1. INSPECT FOR COOLANT LEAK CAUTION: To avoid the danger of being burned, do not remove the radiator reservoir cap while the engine assembly and r
SEE MORE:
ECM Power Source Circuit
DESCRIPTION When the power switch is turned on (IG), auxiliary battery voltage is applied to the IGSW terminal of the ECM. The output signal from the MREL terminal of the ECM causes current to flow to the coil of the EFI-MAIN relay, closing the contacts of the EFI-MAIN relay and supplying power to t
If the 12-volt battery is discharged
The following procedures may be
used to start the hybrid system if the
vehicle's 12-volt battery is discharged.
You can also call your Lexus dealer
or a qualified repair shop.
Restarting the hybrid system
If you have a set of jumper (or booster)
cables and a second vehicle with a 12-
volt
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