Lexus NX: Data List / Active Test
DATA LIST / ACTIVE TEST
NOTICE:
In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
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. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.
DATA LIST
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Central Gateway / Data List.
(e) According to the display on the Techstream, read the Data List.
Body Electrical > Central Gateway > Data List| Tester Display | Measurement Item | Range | Normal Condition |
|---|---|---|---|
| IG2 SW | Power switch on (IG) signal (IG2 terminal) | OFF or ON | OFF: Power switch on (ACC) or off ON: Power switch on (IG) |
| IG1 SW | Power switch on (IG) signal (IG1 terminal) | OFF or ON | OFF: Power switch on (ACC) or off ON: Power switch on (IG) |
| ACC SW | Power switch on (ACC) signal (ACC terminal) | OFF or ON | OFF: Power switch off ON: Power switch on (ACC) or on (IG) |
| +B Voltage | Auxiliary battery voltage (BATT terminal) | Over 8 V or Under 8 V | Over 8 V: Auxiliary battery voltage 8 V or higher Under 8 V: Auxiliary battery voltage below 8 V |
| Number of DTC | Number of DTCs | 0 to 255 | 0: Normal |
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Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART CAN Communication System DTC No. Detection Item DTC Output from Link B1003 ECU Malfunction Central gateway ECU (network gateway ECU) U0199 Los
ECU Malfunction (B1003)
DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from B1003 ECU Malfunction A malfunction in the non-volatile storage of the central gateway ECU (n
Lost Communication with "Door Control Module A" (U0199)
DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from U0199 Lost Communication with "Door Control Module A" There is no communication from the oute
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USB Device Malfunction (B1585)
DESCRIPTION This DTC is stored when a malfunction occurs in a connected device. DTC No. Detection Item DTC Detection Condition Trouble Area B1585 USB Device Malfunction When one of the conditions below is met:
A non mass-storage class or incompatible protocol USB device is connec
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the seat heater system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. CUSTOMER PROBLEM ANALYSIS HINT:
In troubleshooting, confirm that the problem symptom
