Multi-media Interface ECU Power Source Circuit: Procedure
- INSPECT MULTI-MEDIA INTERFACE ECU
- Disconnect the multi-media interface ECU connector.
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition J111-12 (+B) - J111-7 (GND) Always 11 to 14 V J111-11 (ACC) - J111-7 (GND) Engine switch on (ACC) 11 to 14 V TEXT IN ILLUSTRATION*1 Front view of wire harness connector
(to Multi-media Interface ECU)
NG → See step 2
OK → See step 3
- CHECK HARNESS AND CONNECTOR
- Disconnect the radio receiver assembly connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition J111-11 (ACC) - J110-11 (ACC) Always Below 1 Ω J111-12 (+B) - J110-12 (+B) Always Below 1 Ω J111-7 (GND) - J110-7 (GND) Always Below 1 Ω J111-11 (ACC) - Body ground Always 10 kΩ or higher J111-12 (+B) - Body ground Always 10 kΩ or higher J111-7 (GND) - Body ground Always 10 kΩ or higher
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK → See step 3
- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [08/2012 - ]