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 inspection procedure.
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - BATTERY, BODY GROUND) |
(a) Disconnect the G49 and G48 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 |
---|---|---|
G48-7 (GND) - 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 |
---|---|---|
G48-3 (ACC) - G48-7 (GND) |
Ignition switch ACC |
11 to 14 V |
G48-4 (B) - G48-7 (GND) |
Always |
11 to 14 V |
G49-1 (IG) - G48-7 (GND) |
Ignition switch ON |
11 to 14 V |
*a |
Front view of wire harness connector (to Radio and Display Receiver Assembly) |
OK | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
IG Power Source Circuit
DESCRIPTION
The main power source is supplied to the air conditioning amplifier assembly
when the ignition switch is turned to ON. The power source is used for operating
the air conditioning amplifier assembly, servo motors, etc.
WIRING DIAGRAM
CAUTIO ...
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