Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Radio Receiver Power Source Circuit: Procedure
2013 Toyota Sienna Limited, FWDSECTION Procedure
- CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - BATTERY AND BODY GROUND)
- w/o Stereo Component Amplifier:
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Disconnect the D134 radio receiver assembly connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition D134-7 (GND) - Body ground Always Below 1 Ω - Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Switch Condition Specified Condition D134-4 (B) - Body ground Always 11 to 14 V D134-3 (ACC) - Body ground Ignition switch ACC 11 to 14 V TEXT IN ILLUSTRATION*1 Front view of wire harness connector
(to Radio Receiver Assembly)
- w/ Stereo Component Amplifier:
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Disconnect the D133 radio receiver assembly connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition D133-20 (GND) - Body ground Always Below 1 Ω - Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Switch Condition Specified Condition D133-1 (B) - Body ground Always 11 to 14 V D133-11 (ACC) - Body ground Ignition switch ACC 11 to 14 V TEXT IN ILLUSTRATION*1 Front view of wire harness connector
(to Radio Receiver Assembly)
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK → See step 2
- w/o Stereo Component Amplifier:
- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.