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 G4 and G6 radio receiver assembly connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G6-1 (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 |
|---|---|---|
| G6-4 (+B1) - G6-1 (GND1) | Power switch off | 11 to 14 V |
| G6-15 (ACC1) - G6-1 (GND1) | Power switch on (ACC) | 11 to 14 V |
| G4-19 (IG) - G6-1 (GND1) | Power 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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DCM Communication Stop Mode
DESCRIPTION Detection Item Symptom Trouble Area DCM Communication Stop Mode Any of the following conditions are met:
Communication stop for "DCM" is indicated on the "Communication Bus Check" screen of the Techstream.
Click here
Communication stop history for "DCM" is indicated
Power (ignition) switch
Performing the following operations
when carrying the electronic
key on your person starts the hybrid
system or changes power switch
modes.
Starting the hybrid system
1. Press the parking brake switch to
check that the parking brake is set.
Parking brake indicator will come on.
2. Check
