(a) Disconnect the radio and display receiver assembly connector.
(b) Measure the resistance according to the value(s) in the table
R30-7 (GND1) -
Cable disconnected from
negative (-) battery terminal
Below 1 Ω
(c) Connect the cable to the negative (-) battery terminal.
(d) Measure the voltage according to the value(s) in the table below.
TESTER CONNECTION SWITCH CONDITION SPECIFIED CONDITION
R30-3 (ACC1) - Body ground Ignition switch ACC 11 to 14 V
R30-4 (+B1) - Body ground Always 11 to 14 V
R31-1 (IG) - Body ground Ignition switch ON 11 to 14 V
Text in Illustration
Front view of wire harness connector
(to Radio and Display Receiver Assembly)
REPAIR OR REPLACE HARNESS OR CONNECTOR
(POWER SOURCE CIRCUIT)
REPLACE RADIO AND DISPLAY RECEIVER