Terminals Of Ecu
- CHECK DOOR CONTROL RELAY ASSY
- Disconnect the D4 relay connector.
- Measure the voltage and resistance of each terminal of the wire harness side connector.
Standard:
TERMINAL RESISTANCE AND VOLTAGE SPECIFICATIONS (D4 DISCONNECTED)Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition B (D4-1) - Body ground L-W - Body ground +B (B) power supply Always 10 to 14 V IG (D4-26) - Body ground R-B - Body ground Ignition power supply Ignition switch ON 10 to 14 V KSW (D4-8) - Body ground Y - Body ground Key unlock warning switch input No key in ignition key cylinder -> Key inserted 10 kΩ or higher -> Below 1 Ω DCTY (D4-5) - Body ground R - Body ground Driver side courtesy switch input Driver side door Closed -> Open 10 kΩ or higher -> Below 1 Ω PCTY (D4-7) - Body ground R-W - Body ground Courtesy switches input other than driver side Passenger side door, rear door (LH, RH) or back door Closed -> Open 10 kΩ or higher -> Below 1 Ω E (D4-12) - Body ground W-B - Body ground Ground Always Below 1 Ω If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the D4 relay connector.
- Check the voltage of each terminal of the connector.
Standard:
TERMINAL RESISTANCE AND VOLTAGE SPECIFICATIONS (D4 CONNECTED)Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition HAZ (D4-15) - Body ground G-O - Body ground Hazard warning lamp drive Answer-back OFF -> Answer-back ON 10 to 14 V -> Pulse generation RDA (D4-25) - Body ground L -Body ground Door control receiver input No key in ignition key cylinder, all doors closed and transmitter switch OFF -> ON Below 1 V -> Approx. 6 to 7 V -> Below 1 V If the result is not as specified, the relay may have a malfunction.