Lexus ES: Input / Output Signal Circuit
DESCRIPTION
The stereo component equalizer assembly uses this circuit to send and receive signals to and from the stereo component amplifier assembly.
WIRING DIAGRAM
PROCEDURE
| 1. | CHECK HARNESS AND CONNECTOR (STEREO COMPONENT EQUALIZER ASSEMBLY - STEREO COMPONENT AMPLIFIER ASSEMBLY) |
(a) Disconnect the G15 stereo component equalizer assembly connector.
(b) Disconnect the G12 stereo component amplifier assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G15-12 (CH1+) - G12-8 (AN1+) | Always | Below 1 Ω |
| G15-26 (CH1-) - G12-16 (AN1-) | Always | Below 1 Ω |
| G15-11 (CH2+) - G12-7 (AN2+) | Always | Below 1 Ω |
| G15-25 (CH2-) - G12-15 (AN2-) | Always | Below 1 Ω |
| G15-10 (CH3+) - G12-6 (AN3+) | Always | Below 1 Ω |
| G15-24 (CH3-) - G12-14 (AN3-) | Always | Below 1 Ω |
| G15-17 (ACNT) - G12-3 (ACNT) | Always | Below 1 Ω |
| G15-12 (CH1+) or G12-8 (AN1+) - Body ground | Always | 10 kΩ or higher |
| G15-26 (CH1-) or G12-16 (AN1-) - Body ground | Always | 10 kΩ or higher |
| G15-11 (CH2+) or G12-7 (AN2+) - Body ground | Always | 10 kΩ or higher |
| G15-25 (CH2-) or G12-15 (AN2-) - Body ground | Always | 10 kΩ or higher |
| G15-10 (CH3+) or G12-6 (AN3+) - Body ground | Always | 10 kΩ or higher |
| G15-24 (CH3-) or G12-14 (AN3-) - Body ground | Always | 10 kΩ or higher |
| G15-17 (ACNT) or G12-3 (ACNT) - Body ground | Always | 10 kΩ or higher |
| G12-13 (ASG1) - Body ground | Always | 10 kΩ or higher |
| OK | .gif) | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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Parts Location
PARTS LOCATION ILLUSTRATION *1 ECM *2 INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - ECU-B NO. 2 FUSE - ECU-IG1 NO. 4 FUSE - ECU-ACC FUSE *3 DLC3 *4 STEREO COMPONENT EQUALIZER ASSEMBLY
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DESCRIPTION This circuit is the power source circuit for the stereo component equalizer assembly. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses and relays for circuits related to t
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Components
COMPONENTS
ILLUSTRATION
*1
AIR FILTER COVER PLATE
*2
CLEAN AIR FILTER
*3
LOWER INSTRUMENT COVER
*4
AIR FILTER CASE
*5
AIR FILTER SUB-ASSEMBLY
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Inspection
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