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.
Terminals Of Ecu
- CHECK RADIO RECEIVERÂ
- Disconnect the D10 receiver connector.
- Measure the resistance and voltage of the wire harness side connector.
Standard:Â
RADIO RECEIVER CONNECTOR TERMINALS VOLTAGE AND RESISTANCE SPECIFICATIONSymbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition GND (D10-7)- Body ground W-B - Body ground Ground Always Below 1 Ω ACC (D10-3)- GND (D10-7) GR - W-B ACC power supply Ignition switch ACC 11 to 14 V B (D10-4)- GND (D10-7) L-W-B Battery power supply Always 11 to 14 V HINT:
If the results are not as specified, there may be a malfunction in the wire harness.
- Reconnect the D10 receiver connector.
- Measure the voltage and resistance of the connector.
Standard:Â
TERMINAL DESCRIPTION AND SPECIFIED CONDITIONSymbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition FR+ (D10-1)- GND (D10-7) GR - W-B Sound signals (front right) Audio system operating Waveform synchronized with sound output FL+ (D10-2)- GND (D10-7) P-W-B Sound signals (front left) Audio system operating Waveform synchronized with sound output FR- (D10-5)- GND (D10-7) Y-W-B Sound signals (front right) Audio system operating Waveform synchronized with sound output FL- (D10-6)- GND (D10-7) V-W-B Sound signals (front left) Audio system operating Waveform synchronized with sound output RR+ (D11-1)- GND (D10-7) R-W-B Sound signals (rear right) Audio system operating Waveform synchronized with sound output RL+ (D11-2)- GND (D10-7) B-W-B Sound signals (rear left) Audio system operating Waveform synchronized with sound output RR- (D11-3)- GND (D10-7) W-W-B Sound signals (rear right) Audio system operating Waveform synchronized with sound output RL- (D11-6)- GND (D10-7) Y-W-B Sound signals (rear left) Audio system operating Waveform synchronized with sound output ANT (D10-8)- GND (D10-7) B-W-B Power source of antenna Radio switch ON (AM or FM) 11 to 14 V ARI (D74-15)- GND (D10-7) R-W-B Sound signal (Right) External device playing (When stereo jack adapter used) Waveform synchronized with sound output ASGN (D74-16) GND (D10-7) B - W-B *1
W - W-B *2Ground (Shielded) Always Below 1 Ω ALI (D74-17)- GND (D10-7) B - W-B *1
W - W-B *2Sound signal (Left) External device playing (When stereo jack adapter used) Waveform synchronized with sound output AGND (D74-18)- GND (D10-7) (Shielded)- W-B Ground (Shielded) Always Below 1 Ω AUXI (D74-19)- GND (D10-7) R-W-B External device connection detection signal External device connected Below 1 Ω SPD (D74-3) W-W-B Speed signal Ignition switch ON, drive wheels turned slowly Pulse generation *1: for Hatchback
*2: for SedanHINT:
If the results are not as specified, there may be a malfunction in the wire harness.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
No obligation. See pricing before you book.