Lexus ES: Radio Receiver Power Source Circuit
DESCRIPTION
This is the power source circuit to operate the radio receiver assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE
| 1. | CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY POWER SOURCE) |
(a) Disconnect the G5 and G3 radio receiver assembly connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G5-1 (GND1) - Body ground | Always | Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G5-4 (+B1) - G5-1 (GND1) | Always | 11 to 14 V |
| G5-15 (ACC1) - G5-1 (GND1) | Engine switch on (ACC) | 11 to 14 V |
| G3-19 (IG) - G5-1 (GND1) | Engine switch on (IG) | 11 to 14 V |
| OK | .gif) | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
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| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the navigation system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. CUSTOMER PROBLEM ANALYSIS
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