Radio Receiver Power Source Circuit
DESCRIPTION
This is the power source circuit to operate the radio and display 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 AND DISPLAY RECEIVER ASSEMBLY POWER SOURCE) |
(a) Disconnect the G3 and G2 radio and display receiver assembly connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection | Condition |
Specified Condition |
|
G3-1 (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 |
|
G3-4 (+B1) - G3-1 (GND1) |
Always | 11 to 14 V |
|
G3-15 (ACC1) - G3-1 (GND1) |
Engine switch on (ACC) |
11 to 14 V |
|
G2-19 (IG) - G3-1 (GND1) |
Engine switch on (IG) |
11 to 14 V |
| OK |
 | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
Registered Device cannot be Deleted
PROCEDURE
(a) Check if a registered portable player can be deleted normally.
OK:
Registered portable player can be deleted normally.
| OK |
 | END |
| NG |
| PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
Reverse Signal Circuit between Radio Receiver Assembly and Navigation ECU
DESCRIPTION
This circuit includes the navigation ECU and radio and display receiver assembly.
WIRING DIAGRAM
PROCEDURE
| 1. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - NAVIGATION ECU) |
(a) Disconnect the G1 radio and display receiver assembly connector.
(b) Disconnect the G13 navigation ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection | Condition |
Specified Condition |
|
G1-28 (REV2) - G13-19 (REV2) |
Always | Below 1 Ω |
|
G1-28 (REV2) or G13-19 (REV2) - Body ground |
Always | 10 kΩ or higher |
| OK |
 | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
