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 FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LHΒ
- Disconnect the N11 motor connector.
- Measure the resistance and voltage according to the value(s) in the table below.CONNECTOR TERMINAL REFERENCE TABLE
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition N11-2 (B) - N11-1 (E) O - B Battery power supply Always 11 to 14 V N11-1 (E) - Body ground B - Body ground Ground Always Below 1 Ξ© If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the N11 motor connector.
- Measure the voltage according to the value(s) in the table below.CONNECTOR TERMINAL REFERENCE TABLE
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition N11-10 (UP1) - N11-1 (E) L - B Power window UP operation Engine switch on (IG), switch OFF β UP 11 to 14 V β Below 1 V N11-10 (UP1) - N11-1 (E) L - B Power window UP operation Engine switch on (IG), door glass fully open β power window AUTO UP operation β door glass fully closed 11 to 14 V β Below 1 V β 11 to 14 V N11-7 (DWN1) - N11-1 (E) GR - B Power window DOWN operation Engine switch on (IG), switch OFF β DOWN 11 to 14 V β Below 1 V N11-7 (DWN1) - N11-1 (E) GR - B Power window DOWN operation Engine switch on (IG), door glass fully closed β power window AUTO DOWN operation β door glass fully open 11 to 14 V β Below 1 V β 11 to 14 V If the result is not as specified, the motor may be malfunctioning.
- CHECK FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RHΒ
- Disconnect the N3 motor connector.
- Measure the resistance and voltage according to the value(s) in the table below.CONNECTOR TERMINAL REFERENCE TABLE
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition N3-2 (B) - N3-1 (E) O - B Battery power supply Always 11 to 14 V N3-1 (E) - Body ground B - Body ground Ground Always Below 1 Ξ© If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the N3 motor connector.
- Measure the voltage according to the value(s) in the table below.CONNECTOR TERMINAL REFERENCE TABLE
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition N3-10 (UP1) - N3-1 (E) GR - B Power window UP operation Engine switch on (IG), switch OFF β UP 11 to 14 V β Below 1 V N3-10 (UP1) - N3-1 (E) GR - B Power window UP operation Engine switch on (IG), door glass fully open β power window AUTO UP operation β door glass fully closed 11 to 14 V β Below 1 V β 11 to 14 V N3-7 (DWN1) - N3-1 (E) BR - B Power window DOWN operation Engine switch on (IG), switch OFF β DOWN 11 to 14 V β Below 1 V N3-7 (DWN1) - N3-1 (E) BR - B Power window DOWN operation Engine switch on (IG), door glass fully closed β power window AUTO DOWN operation β door glass fully open 11 to 14 V β Below 1 V β 11 to 14 V If the result is not as specified, the motor may be malfunctioning.
- CHECK REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LHΒ
- Disconnect the O19 motor connector.
- Measure the resistance and voltage according to the value(s) in the table below.CONNECTOR TERMINAL REFERENCE TABLE
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition O19-2 (B) - O19-1 (E) O - B Battery power supply Always 11 to 14 V O19-1 (E) - Body ground B - Body ground Ground Always Below 1 Ξ© If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the O19 motor connector.
- Measure the voltage according to the value(s) in the table below.CONNECTOR TERMINAL REFERENCE TABLE
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition O19-10 (UP1) - O19-1 (E) BR - B Power window UP operation Engine switch on (IG), switch OFF β UP 11 to 14 V β Below 1 V O19-10 (UP1) - O19-1 (E) BR - B Power window UP operation Engine switch on (IG), door glass fully open β power window AUTO UP operation β door glass fully closed 11 to 14 V β Below 1 V β 11 to 14 V O19-7 (DWN1) - O19-1 (E) Y - B Power window DOWN operation Engine switch on (IG), switch OFF β DOWN 11 to 14 V β Below 1 V O19-7 (DWN1) - O19-1 (E) Y - B Power window DOWN operation Engine switch on (IG), door glass fully closed β power window AUTO DOWN operation β door glass fully open 11 to 14 V β Below 1 V β 11 to 14 V If the result is not as specified, the motor may be malfunctioning.
- CHECK REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RHΒ
- Disconnect the O8 motor connector.
- Measure the resistance and voltage according to the value(s) in the table below.CONNECTOR TERMINAL REFERENCE TABLE
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition O8-2 (B) - O8-1 (E) O - B Battery power supply Always 11 to 14 V O8-1 (E) - Body ground B - Body ground Ground Always Below 1 Ξ© If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the O8 motor connector.
- Measure the voltage according to the value(s) in the table below.CONNECTOR TERMINAL REFERENCE TABLE
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition O8-10 (UP1) - O8-1 (E) BR - B Power window UP operation Engine switch on (IG), switch OFF β UP 11 to 14 V β Below 1 V O8-10 (UP1) - O8-1 (E) BR - B Power window UP operation Engine switch on (IG), door glass fully open β power window AUTO UP operation β door glass fully closed 11 to 14 V β Below 1 V β 11 to 14 V O8-7 (DWN1) - O8-1 (E) Y - B Power window DOWN operation Engine switch on (IG), switch OFF β DOWN 11 to 14 V β Below 1 V O8-7 (DWN1) - O8-1 (E) Y - B Power window DOWN operation Engine switch on (IG), door glass fully closed β power window AUTO DOWN operation β door glass fully open 11 to 14 V β Below 1 V β 11 to 14 V If the result is not as specified, the motor may be malfunctioning.
- CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLYΒ
- Disconnect the N13 master switch connector.
- Measure the resistance and voltage according to the value(s) in the table below.CONNECTOR TERMINAL REFERENCE TABLE
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition N13-11 (B) - N13-12 (GND) B - R Battery power supply Always 11 to 14 V N13-12 (GND) - Body ground R - Body ground Ground Always Below 1 Ξ© If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the N13 master switch connector.
- Measure the voltage according to the value(s) in the table below.CONNECTOR TERMINAL REFERENCE TABLE
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition N13-20 (UP) - N13-12 (GND) L - R Power window UP operation Engine switch on (IG), switch OFF β UP 11 to 14 V β Below 1 V N13-20 (UP) - N13-12 (GND) L - R Power window UP operation Engine switch on (IG), door glass fully open β power window AUTO UP operation β door glass fully closed 11 to 14 V β Below 1 V β 11 to 14 V N13-15 (DOWN) - N13-12 (GND) GR - R Power window DOWN operation Engine switch on (IG), switch OFF β DOWN 11 to 14 V β Below 1 V N13-15 (DOWN) - N13-12 (GND) GR - R Power window DOWN operation Engine switch on (IG), door glass fully closed β power window AUTO DOWN operation β door glass fully open 11 to 14 V β Below 1V β 11 to 14 V N13-18 (LED) - N13-12 (GND) BR - R Illuminates when power window operation permitted Engine switch off Below 1 V N13-18 (LED) - N13-12 (GND) BR - R Illuminates when power window operation permitted Engine switch on (IG) 11 to 14 V If the result is not as specified, the master switch may be malfunctioning.
- CHECK POWER WINDOW REGULATOR SWITCH ASSEMBLY RHΒ
- Disconnect the N6 switch connector.
- Measure the resistance according to the value(s) in the table below.CONNECTOR TERMINAL REFERENCE TABLE
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition N6-5 (GND) - Body ground R - Body ground Ground Always Below 1 Ξ© If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the N6 switch connector.
- Measure the voltage according to the value(s) in the table below.CONNECTOR TERMINAL REFERENCE TABLE
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition N6-2 (UP) - N6-5 (GND) GR - R Power window UP operation Engine switch on (IG), switch OFF β UP 11 to 14 V β Below 1 V N6-10 (DOWN) - N6-5 (GND) BR - R Power window DOWN operation Engine switch on (IG), switch OFF β DOWN 11 to 14 V β Below 1 V N6-4 (AUTO) - N6-5 (GND) L - R Power window UP operation Engine switch on (IG), door glass fully open β power window AUTO UP operation β door glass fully closed 11 to 14 V β Below 1V β 11 to 14 V N6-4 (AUTO) - N6-5 (GND) L - R Power window DOWN operation Engine switch on (IG), door glass fully closed β power window AUTO DOWN operation β door glass fully open 11 to 14 V β Below 1 V β 11 to 14 V N6-8 (LED) - N6-5 (GND) Y - R Illuminates when power window operation permitted Engine switch off Below 1 V N6-8 (LED) - N6-5 (GND) Y - R Illuminates when power window operation permitted Engine switch on (IG) and window lock switch UNLOCK 11 to 14 V If the result is not as specified, the switch may be malfunctioning.
- CHECK REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LHΒ
- Disconnect the O18 switch connector.
- Measure the resistance according to the value(s) in the table below.CONNECTOR TERMINAL REFERENCE TABLE
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition O18-5 (GND) - Body ground R - Body ground Ground Always Below 1 Ξ© If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the O18 switch connector.
- Measure the voltage according to the value(s) in the table below.CONNECTOR TERMINAL REFERENCE TABLE
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition O18-2 (UP) - O18-5 (GND) BR - R Power window UP operation Engine switch on (IG), switch OFF β UP 11 to 14 V β Below 1 V O18-10 (DOWN) - O18-5 (GND) Y - R Power window DOWN operation Engine switch on (IG), switch OFF β DOWN 11 to 14 V β Below 1 V O18-4 (AUTO) - O18-5 (GND) GR - R Power window UP operation Engine switch on (IG), door glass fully open β power window AUTO UP operation β door glass fully closed 11 to 14 V β Below 1 V β 11 to 14 V O18-4 (AUTO) - O18-5 (GND) GR - R Power window DOWN operation Engine switch on (IG), door glass fully closed β power window AUTO DOWN operation β door glass fully open 11 to 14 V β Below 1 V β 11 to 14 V O18-8 (LED) - O18-5 (GND) L - R Illuminates when power window operation permitted Engine switch off Below 1 V O18-8 (LED) - O18-5 (GND) L - R Illuminates when power window operation permitted Engine switch on (IG) and window lock switch UNLOCK 11 to 14 V If the result is not as specified, the switch may be malfunctioning.
- CHECK REAR WINDOW REGULATOR SWITCH ASSEMBLY RHΒ
- Disconnect the O7 switch connector.
- Measure the resistance according to the value(s) in the table below.CONNECTOR TERMINAL REFERENCE TABLE
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition O7-5 (GND) - Body ground R - Body ground Ground Always Below 1 Ξ© If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the O7 switch connector.
- Measure the voltage according to the value(s) in the table below.CONNECTOR TERMINAL REFERENCE TABLE
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition O7-2 (UP) - O7-5 (GND) BR - R Power window UP operation Engine switch on (IG), switch OFF β UP 11 to 14 V β Below 1 V O7-10 (DOWN) - O7-5 (GND) Y - R Power window DOWN operation Engine switch on (IG), switch OFF β DOWN 11 to 14 V β Below 1 V O7-4 (AUTO) - O7-5 (GND) GR - R Power window UP operation Engine switch on (IG), door glass fully open β power window AUTO UP operation β door glass fully closed 11 to 14 V β Below 1V β 11 to 14 V O7-4 (AUTO) - O7-5 (GND) GR - R Power window DOWN operation Engine switch on (IG), door glass fully closed β power window AUTO DOWN operation β door glass fully open 11 to 14 V β Below 1 V β 11 to 14 V O7-8 (LED) - O7-5 (GND) L - R Illuminates when power window operation permitted Engine switch off Below 1 V O7-8 (LED) - O7-5 (GND) L - R Illuminates when power window operation permitted Engine switch on (IG) and window lock switch UNLOCK 11 to 14 V If the result is not as specified, the switch may be malfunctioning.
- CHECK FRONT MULTIPLEX NETWORK DOOR ECU LHΒ
- Disconnect the P10 and N10 ECU connectors.
- Measure the resistance and voltage according to the value(s) in the table below.CONNECTOR TERMINAL REFERENCE TABLE
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition N10-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ξ© N10-11 (CPUB) - N10-1 (GND) B-W-B Battery (power supply) Always 11 to 14 V N10-6 (BDR) - N10-1 (GND) O-W - B Battery (power supply) Always 11 to 14 V N10-4 (BCUT) - N10-1 (GND) B-W - B Ignition power supply Engine switch off β Engine switch on (IG) Below 1 V β 11 to 14 V N10-3 (SIG) - N10-1 (GND) L-W - B Ignition power supply Engine switch off β Engine switch on (IG) Below 1 V β 11 to 14 V If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the P10 and N10 ECU connectors.
- Measure the voltage according to the value(s) in the table below.CONNECTOR TERMINAL REFERENCE TABLE
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition N10-5 (BDRJ) - N10-1 (GND) O-W - B +B power output Always 11 to 14 V N10-2 (PWE) - Body ground B - Body ground Ground Always Below 1 V P10-26 (CPBJ) - N10-1 (GND) B-W - B Ignition signal output Engine switch off Below 1 V P10-26 (CPBJ) - N10-1 (GND) B-W - B Ignition signal output Engine switch on (IG) 11 to 14 V P10-27 (SGND) - Body ground R - Body ground Ground Always Below 1 V If the result is not as specified, the ECU may be malfunctioning.
- CHECK FRONT MULTIPLEX NETWORK DOOR ECU RHΒ
- Disconnect the P4 and N1 ECU connectors.
- Measure the resistance and voltage according to the value(s) in the table below.CONNECTOR TERMINAL REFERENCE TABLE
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition N1-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ξ© N1-11 (CPUB) - N1-1 (GND) R-W - B Battery (power supply) Always 11 to 14 V N1-6 (BDR) - N1-1 (GND) O-W - B Battery (power supply) Always 11 to 14 V N1-3 (SIG) - N1-1 (GND) V-W - B Ignition power supply Engine switch off Below 1 V N1-3 (SIG) - N1-1 (GND) V-W - B Ignition power supply Engine switch on (IG) 11 to 14 V If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the P4 and N1 ECU connectors.
- Measure the voltage according to the value(s) in the table below.CONNECTOR TERMINAL REFERENCE TABLE
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition N1-5 (BDRJ) - N1-1 (GND) O-W - B +B power output Always 11 to 14 V N1-2 (PWE) - Body ground B - Body ground Ground Always Below 1 V P4-27 (SGND) - Body ground R - Body ground Ground Always Below 1 V If the result is not as specified, the ECU may be malfunctioning.
- CHECK REAR MULTIPLEX NETWORK DOOR ECU LHΒ
- Disconnect the O15 and O14 ECU connectors.
- Measure the resistance and voltage according to the value(s) in the table below.CONNECTOR TERMINAL REFERENCE TABLE
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition O14-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ξ© O14-11 (CPUB) - O14-1 (GND) R-W - B Battery (power supply) Always 11 to 14 V O14-6 (BDR) - O14-1 (GND) L-W - B Battery (power supply) Always 11 to 14 V O14-3 (SIG) - O14-1 (GND) Y-W - B Ignition power supply Engine switch off Below 1 V O14-3 (SIG) - O14-1 (GND) Y-W - B Ignition power supply Engine switch on (IG) 11 to 14 V If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the O15 and O14 ECU connectors.
- Measure the voltage according to the value(s) in the table below.CONNECTOR TERMINAL REFERENCE TABLE
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition O14-5 (BDRJ) - O14-1 (GND) 0-W - B +B power output Always 11 to 14 V O14-2 (PWE) - Body ground B - Body ground Ground Always Below 1 V O15-25 (SGND) - Body ground R - Body ground Ground Always Below 1 V If the result is not as specified, the ECU may be malfunctioning.
- CHECK REAR MULTIPLEX NETWORK DOOR ECU RHΒ
- Disconnect the O2 and O3 ECU connectors.
- Measure the resistance and voltage according to the value(s) in the table below.CONNECTOR TERMINAL REFERENCE TABLE
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition O3-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ξ© O3-11 (CPUB) - O3-1 (GND) R-W - B Battery (power supply) Always 11 to 14 V O3-6 (BDR) - O3-1 (GND) L-W - B Battery (power supply) Always 11 to 14 V O3-3 (SIG) - O3-1 (GND) Y-W - B Ignition power supply Engine switch off Below 1 V O3-3 (SIG) - O3-1 (GND) Y-W - B Ignition power supply Engine switch on (IG) 11 to 14 V If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the O2 and O3 ECU connectors.
- Measure the voltage according to the value(s) in the table below.CONNECTOR TERMINAL REFERENCE TABLE
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition O3-5 (BDRJ) - O3-1 (GND) O-W - B +B power output Always 11 to 14 V O3-2 (PWE) - Body ground B - Body ground Ground Always Below 1 V O2-25 (SGND) - Body ground R - Body ground Ground Always Below 1 V If the result is not as specified, the ECU may be malfunctioning.
- CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK)Β
- Disconnect the DA, DD, DF, L11, L12 and L13 ECU connectors.
- Measure the resistance and voltage according to value(s) in the table below.CONNECTOR TERMINAL REFERENCE TABLE
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition L11-1 (GND3) - DA-41 (GND1) W-B - W - B Ground Always Below 1 Ξ© DA-40 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ξ© DA-40 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ξ© DF-1 (ALTB) - Body ground B - Body ground IG power supply Always 11 to 14 V L12-1 (AM2) - Body ground W - Body ground Battery power supply Always 11 to 14 V L13-6 (AM1) - Body ground W - Body ground Battery power supply Always 11 to 14 V L13-24 (DCTY) - Body ground W - Body ground Driver side door courtesy light switch input Driver side door is open Below 1 Ξ© Driver side door is closed 10 kΞ© or higher L12-21 (PCTY) - Body ground L - Body ground Front passenger side door courtesy light switch input Front passenger side door is open Below 1 Ξ© Front passenger side door is closed 10 kΞ© or higher L12-7 (RCTY) - Body ground R - Body ground Rear RH side door courtesy light switch input Rear RH side door is open Below 1 Ξ© Rear RH side door is closed 10 kΞ© or higher DD-12 (LCTY) - Body ground L - Body ground Rear LH side door courtesy light switch input Rear LH side door is open Below 1 Ξ© Rear LH side door is closed 10 kΞ© or higher If the result is not as specified, the wire harness side may have a malfunction.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
