Lexus NX: On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT STOP LIGHT CONTROL ECU ASSEMBLY
| (a) Disconnect the stop light control ECU assembly connector. |
|
(b) Measure the voltage and resistance on the wire harness side connector according to the value (s) in the table below.
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| A3-4 (ESS1) - A3-8 (GND) | Power switch on (IG) | 11 to 14 V |
| A3-6 (+B) - A3-8 (GND) | Power switch off | 11 to 14 V |
| A3-9 (ACC) - A3-8 (GND) | Power switch on (IG) | 11 to 14 V |
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| A3-8 (GND) - Body ground | Always | Below 1 Ω |
If the result is not as specified, repair or replace the wire harness or connector.
(c) Reconnect the stop light control ECU assembly connector.
| (d) Measure the voltage according to the value (s) in the table below. Standard Voltage:
If the result is not as specified, replace the stop light control ECU assembly. |
|
READ NEXT:
Removal
REMOVAL PROCEDURE 1. REMOVE DOOR SCUFF PLATE ASSEMBLY LH Click here 2. REMOVE COWL SIDE TRIM BOARD LH Click here 3. REMOVE INSTRUMENT SIDE PANEL LH Click here 4. REMOVE NO. 1 INSTRUMENT
Installation
INSTALLATION PROCEDURE 1. INSTALL STOP LIGHT CONTROL ECU ASSEMBLY (a) Attach the clamp to install the stop light control ECU assembly. (b) Connect the connector. 2. INSTALL LOWER NO. 1 INSTRUMENT PANE
SEE MORE:
Power Back Door cannot be Opened or Closed Using the Power Back Door Switch
DESCRIPTION When the power back door cannot be opened or closed using the combination switch assembly, one of the following may be malfunctioning: 1) combination switch assembly circuit, 2) multiplex network door ECU or 3) main body ECU (multiplex network body ECU). WIRING DIAGRAM CAUTION / NOTICE
A/C Inverter Cooling / Heating System Malfunction (B1475)
DESCRIPTION The temperature sensor of the compressor with motor assembly detects the A/C inverter temperature. If the temperature exceeds the maximum, operation of the compressor with motor assembly will be stopped, and this DTC will be stored. DTC No. Detection Item DTC Detection Condition
