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.
Signal Specification, Remote Digital Audio Receiver (RDAR) [2018]
General
All the values given below are between the respective terminal in column 1 and terminal #A1 in column 2 (power ground) unless otherwise stated in parenthesis after the table entry.
It is important to check ground terminals before taking readings.
| U= | DC voltage in volts (V) | UAC = | AC voltage in volts (V) |
| Ubat = | Battery voltage (V) | f = | Frequency in Hertz (Hz) |
| Ulow = | Voltage approximately 0 V | t = | Time in seconds |
| PWM = | Pulse width modulated signal as a % |
Connector C1
| Connection breakout box | Control module terminal | Signal type | Ignition on | Ignition off | Other |
|---|---|---|---|---|---|
| - | #C1-1 | 30-feed | U = Ubat | U = Ubat | |
| - | #C1-2 | ground, 30 supply | U=Ulow | U=Ulow |
Connector C2
| Connection breakout box | Control module terminal | Signal type | Ignition on | Ignition off | Other |
| - | #C2-1 | Input, antenna | - | - |
Connector C3
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Ignition off | Other |
| - | #C3-1 | Output, optical | - | - | |
| - | #C3-2 | Input, optical | - | - |
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.