Lexus NX: Hybrid System Indicator Malfunction
DESCRIPTION
A hybrid system indicator has been used on this vehicle. In this circuit, the combination meter assembly receives the eco-zone indicator level signal from the hybrid vehicle control ECU via CAN communication. The combination meter assembly controls the operation of the hybrid system indicator according to the eco-zone indicator level signal received from the hybrid vehicle control ECU via CAN communication.
WIRING DIAGRAM
.png)
CAUTION / NOTICE / HINT
NOTICE:
When replacing the combination meter assembly, make sure to replace it with a new one.
PROCEDURE
| 1. | CHECK FOR DTC (CAN COMMUNICATION SYSTEM) |
(a) Check for DTCs.
Click here .gif)
OK:
No DTCs are output.
| NG | .gif) | GO TO CAN COMMUNICATION SYSTEM |
|
.gif)
| 2. | PERFORM ACTIVE TEST USING TECHSTREAM (HV SYSTEM INDICATOR) |
(a) Using the Techstream, perform the Active Test.
Click here
| Tester Display | Measurement Item | Control Range | Diagnostic Note |
|---|---|---|---|
| HV System Indicator | Hybrid system indicator | OFF, MIN, -50, 0, 100, 200, 300, 400, MAX | - |
| Tester Display |
|---|
| HV System Indicator |
OK:
Hybrid system indicator indication is normal.
| NG | | REPLACE COMBINATION METER ASSEMBLY |
|
| 3. | READ VALUE USING TECHSTREAM (HV SYSTEM INDICATOR) |
(a) Using the Techstream, read the Data List.
Click here
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| HV System Indicator | Hybrid system indicator value | Min.: -512%, Max.: 511% | -512 to 511% | - |
| Tester Display |
|---|
| HV System Indicator |
OK:
Hybrid system indicator value displayed on the Techstream is almost the same as hybrid system indicator indication.
| NG | | GO TO HYBRID CONTROL SYSTEM |
|
| 4. | CHECK COMBINATION METER ASSEMBLY |
(a) Replace the combination meter assembly.
Click here
(b) Check that the operation of the hybrid system indicator returns to normal.
OK:
The operation of the hybrid system indicator returns to normal.
| OK | | END (COMBINATION METER ASSEMBLY IS DEFECTIVE) |
| NG | | REPLACE HYBRID VEHICLE CONTROL ECU |
READ NEXT:
Odo/Trip Switch Malfunction
DESCRIPTION The ODO/TRIP display of the combination meter changes each time the trip switch is pressed. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: When replacing the combination meter assembly, m
Operating Light Control Rheostat does not Change Light Brightness
DESCRIPTION The combination meter assembly receives signals from this circuit to adjust the illumination of the combination meter assembly. The combination meter assembly sets the illumination level b
Speed Signal Circuit
DESCRIPTION The combination meter assembly receives the vehicle speed signal from this circuit. The wheel speed sensors produce an output that varies according to the vehicle speed. The wheel speed se
SEE MORE:
Disposal
DISPOSAL CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH and LH sides.
The procedure listed below is for the LH side.
PROCEDURE 1. DISPOSE OF FRONT SHOCK ABSORBER ASSEMBLY LH (a) Position the front shock absorber assembly so that it is level with the piston rod fully exten
Open Circuit in Main Relay 1 (C1311,C1312)
DESCRIPTION The ABS main relay supplies power to the changeover solenoid and the linear solenoid. The ABS main relay remains on for approximately 2 minutes after the power switch is turned off and the input of brake pedal operation signals stops, and supplies power to the system to keep it ready to
