Lexus NX: 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 suspected areas in the order they are listed. Replace parts as necessary.

Cooling Fan System

Symptom

Suspected Area

Link

Cooling fans do not operate

CAN communication system

Engine coolant temperature sensor

Cooling fan circuit

Cooling fan motor

No. 2 cooling fan motor

FAN NO.1 relay

Cooling fan ECU

ECM

Cooling fans do not stop (continue to operate)

CAN communication system

Engine coolant temperature sensor

Cooling fan circuit

Cooling fan ECU

ECM

Cooling fan speed does not change

CAN communication system

Cooling fan circuit

Cooling fan ECU

ECM

READ NEXT:

 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: Powe

 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:

 High Voltage System Inter-Lock Circuit High (P0A0D-350,P0A0D-351)

DTC SUMMARY MALFUNCTION DESCRIPTION The hybrid vehicle control ECU detects that a safety device (interlock) is operated or that there is an open circuit in the detection circuit. (Even if an open circuit occurs while the vehicle is stopped, the system determines that the safety device was operated.)

 Jam Protection Function does not Operate

DESCRIPTION This symptom may occur for any of the windows. The jam protection function operates within a specified range during the manual up or auto up operation. CAUTION / NOTICE / HINT NOTICE: If a power window regulator motor assembly has been replaced with a new one, initialize the power win

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