Lexus NX: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
NOTICE:
If the main body ECU (multiplex network body ECU) is replaced, refer to Registration.
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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.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
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If the auxiliary battery voltage becomes low, rear mirror heater operation is canceled to prioritize supplying power to the power steering system.
for Manual Tilt and Manual Telescopic Steering Column: Click here
for Power Tilt and Power Telescopic Steering Column: Click here
| Symptom | Suspected Area | Link |
|---|---|---|
| RH side power mirror cannot be adjusted with power mirror switch | Outer rear view mirror assembly RH | |
| Outer mirror switch assembly | | |
| Harness or connector | - | |
| LH side power mirror cannot be adjusted with power mirror switch | Outer rear view mirror assembly LH | |
| Outer mirror switch assembly | | |
| Harness or connector | - | |
| Power mirror cannot be adjusted with power mirror switch | Outer mirror switch assembly | |
| Harness or connector | - | |
| Mirror heater does not operate | Proceed to "Mirror Heater does not Operate with Rear Defogger Switch" | |
| Symptom | Suspected Area | Link |
|---|---|---|
| Power retract mirrors do not operate | Proceed to "Power Retract Mirrors do not Operate with Power Retract Mirror Switch" | |
| AUTO power retract mirrors do not operate | Proceed to "AUTO Power Retract Mirrors do not operate" | |
READ NEXT:
Terminals Of Ecu
TERMINALS OF ECU CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU), INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY *1 Main Body ECU (Multiplex Network Body ECU) - - (a) Remove the main body ECU
Diagnosis System
DIAGNOSIS SYSTEM CHECK DLC3 (a) Check the DLC3. Click here INSPECT AUXILIARY BATTERY VOLTAGE (a) Measure the auxiliary battery voltage with the power switch off. Standard voltage: 11 to 14 V If th
Data List / Active Test
DATA LIST / ACTIVE TEST DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. Th
SEE MORE:
Air Mix Damper Control Servo Motor Circuit (Passenger Side) (B1441)
DESCRIPTION The No. 1 air conditioning radiator damper servo sub-assembly (front passenger side air mix) sends pulse signals to indicate the damper position to the air conditioning amplifier assembly. The air conditioning amplifier assembly activates the motor (normal or reverse) based on these sign
Removal
REMOVAL PROCEDURE 1. REMOVE NO. 3 DECK BOARD SUB-ASSEMBLY Click here 2. REMOVE REAR DECK FLOOR BOX Click here 3. REMOVE DECK FLOOR BOX LH Click here 4. PRECAUTION CAUTION: Be sure to read Precaution thoroughly before servicing. Click here NOTICE:
After the power switch is turned off, ther
