Lexus NX: Speaker Circuit (B1360)
DESCRIPTION
This DTC is stored when a connection malfunction, such as an open, is detected in the wire harness between the stereo component equalizer assembly and No. 1 speaker assembly with box.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B1360 | Speaker Circuit | Open in the speaker circuit |
|
WIRING DIAGRAM
PROCEDURE
| 1. | PERFORM ACTIVE TEST USING TECHSTREAM |
(a) Using the Techstream, perform the Active Test.
Click here .gif)
| Tester Display | Measurement Item | Control Range | Diagnostic Note |
|---|---|---|---|
| Sound | ASC system | ON or OFF | - |
| Tester Display |
|---|
| Sound |
OK:
Sound is output.
| OK | .gif) | REPLACE STEREO COMPONENT EQUALIZER ASSEMBLY |
|
.gif)
| 2. | INSPECT NO. 1 SPEAKER ASSEMBLY WITH BOX |
(a) Remove the No. 1 speaker assembly with box.
Click here
(b) Inspect the No. 1 speaker assembly with box.
Click here
| NG | | REPLACE NO. 1 SPEAKER ASSEMBLY WITH BOX |
|
| 3. | CHECK HARNESS AND CONNECTOR (STEREO COMPONENT EQUALIZER ASSEMBLY - NO. 1 SPEAKER ASSEMBLY WITH BOX) |
(a) Disconnect the I117 stereo component equalizer assembly connector.
(b) Disconnect the I118 No. 1 speaker assembly with box connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| I117-16 (SPO+) - I118-1 | Always | Below 1 Ω |
| I117-15 (SPO-) - I118-2 | Always | Below 1 Ω |
| I117-16 (SPO+) or I118-1 - Body ground | Always | 10 kΩ or higher |
| I117-15 (SPO-) or I118-2 - Body ground | Always | 10 kΩ or higher |
| OK | | REPLACE STEREO COMPONENT EQUALIZER ASSEMBLY |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
READ NEXT:
Volume Switch Circuit (B1361)
DESCRIPTION The stereo component equalizer assembly adjusts sound volume based on the signal sent by the vehicle sound switch. DTC No. Detection Item DTC Detection Condition Trouble Area
ECU Malfunction (B1362)
DESCRIPTION This DTC is stored when the stereo component equalizer assembly detects an internal malfunction. DTC No. Detection Item DTC Detection Condition Trouble Area B1362 ECU Malfun
Lost Communication with Brake System Control Module (U0129,U0142,U0293)
DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area U0129 Lost Communication with Brake System Control Module No communication with brake booster with master cylin
SEE MORE:
Removal
REMOVAL PROCEDURE 1. REMOVE DECK BOARD ASSEMBLY Click here 2. REMOVE NO. 3 DECK BOARD SUB-ASSEMBLY Click here 3. REMOVE REAR DECK FLOOR BOX Click here 4. REMOVE DECK FLOOR BOX LH Click here 5. PRECAUTION CAUTION: Be sure to read Precaution thoroughly before serving. Click here NOTICE: Afte
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use these procedures to troubleshoot the power steering system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. INSPECT AUXILIARY BATTERY VOLTAGE (a) Measure the voltage of the auxiliary battery. Standar
