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
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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.
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OK:
No DTCs are output.
| NG | .gif) | GO TO CAN COMMUNICATION SYSTEM |
|
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| 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 |
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Installation
INSTALLATION 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. INSTALL REAR DRIVE SHAFT ASSEMBLY LH (a) Align the matchmarks on the rear drive shaft assembly LH and rear axle hub and bearing assembly,
Parts Location
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