Lexus NX: Air Conditioning System
- Precaution
- Parts Location
- System Diagram
- System Description
- How To Proceed With Troubleshooting
- Customize Parameters
- Initialization
- Problem Symptoms Table
- Dtc Check / Clear
- Terminals Of Ecu
- Check Mode Procedure
- Data List / Active Test
- Diagnostic Trouble Code Chart
- Room Temperature Sensor Circuit (B1411)
- Ambient Temperature Sensor Circuit (B1412)
- Evaporator Temperature Circuit or Evaporator Fin Thermistor (B1413)
- Open in Pressure Sensor Circuit / Abnormal Refrigerant Pressure (B1423)
- Air Mix Damper Control Servo Motor Circuit (Passenger Side) (B1441)
- Air Inlet Damper Control Servo Motor Circuit (B1442)
- Air Outlet Damper Control Servo Motor Circuit (B1443)
- Air Mix Damper Control Servo Motor Circuit (Driver Side) (B1446)
- Air Outlet Damper Control Servo Motor Circuit (Rear) (B1449)
- A/C Inverter High Voltage Power Resource System Malfunction (B1471)
- A/C Inverter High Voltage Output System Malfunction (B1472)
- A/C Inverter Start-up Signal System Malfunction (B1473)
- A/C Inverter Malfunction (B1474)
- A/C Inverter Cooling / Heating System Malfunction (B1475)
- A/C Inverter Load System Malfunction (B1476)
- A/C Inverter Low Voltage Power Resource System Malfunction (B1477)
- Communication Malfunction (Bus Ic) (B1497)
- Communication Malfunction (A/C Inverter Local) (B1498)
- Glass Temperature Sensor Circuit (B14A8)
- Glass Surroundings Temperature Sensor Circuit (B14A9)
- Glass Humidity Sensor Circuit (B14AA)
- Lost Communication with Front Panel LIN (B14B2)
- Refrigerant Shortage (B14B8)
- Hybrid Battery Voltage System Isolation Fault (P0AA6-611)
- Lost Communication with ECM / PCM "A" (U0100-U0142,U0155,U0163,U0293)
- Blower Motor Circuit
- Heater Water Pump Circuit
- PTC Heater Circuit
- Ambient Temperature Display System
- ECO Switch Circuit
- IG Power Source Circuit
- Back-up Power Source Circuit
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Precaution
PRECAUTION PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL NOTICE:
After the power switch is turned off, there may be a waiting time before disconnecting the negative (-
Parts Location
PARTS LOCATION ILLUSTRATION *A for 2WD *B for AWD *1 AIR CONDITIONING TUBE AND ACCESSORY ASSEMBLY (AIR CONDITIONER PRESSURE SENSOR) *2 THERMISTOR ASSEMBLY (AMBIENT TEMPERATURE SENS
System Diagram
SYSTEM DIAGRAM Communication Table Sender Receiver Signal Communication Line Air conditioning amplifier assembly Hybrid vehicle control ECU Heater idle up request signal CAN
SEE MORE:
DC/DC Converter Step Up Voltage Performance (P0CA3-442)
DTC SUMMARY MALFUNCTION DESCRIPTION This DTC indicates that it has been detected that the VH voltage cannot be boosted as commanded due to malfunction of the boost converter system. The cause of this malfunction may be one of the following: Internal inverter malfunction
Inverter with converter as
Idle Control System (P0505)
DESCRIPTION The idle speed is controlled by the electronic throttle control system. The electronic throttle control system is comprised of: 1) one valve type throttle body with motor assembly; 2) the throttle actuator, which operates the throttle valve; 3) the throttle position sensor, which detects
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