CHECK CERTIFICATION ECU
Disconnect the L15 and L16 ECU connectors.
Measure the resistance and voltage according to the value(s) in the table below.
| Terminal No. (Symbols) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| L15-1 (+B1) - Body ground | L - Body ground | +B power supply | Always | 11 to 14 V |
| L15-18 (IG) - Body ground | L - Body ground | IG power supply | Engine switch on (IG) | 11 to 14 V |
| L15-17 (E) - 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 L15 and L16 ECU connectors.
Measure the voltage according to the value(s) in the table below.
| Terminal No. (Symbols) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| L15-2 (IND) - Body ground | L - Body ground | Security indicator signal | Security indicator illuminates (illuminates only for 60 sec. in alarm sounding state, (it is blinking when system is in armed state)) | 3 to 6 V |
| SSCL*1 (L16-7) - Body ground | BE - Body ground | Theft warning siren signal | Theft warning siren is sounding (Theft warning system is in alarm sounding state) | Pulse generation |
| IOUT*2 (L16-4) - Body ground | W - Body ground | Intrusion sensor signal input | No moving object is detected | 11 to 14 V |
| Moving object is detected during arming preparation state or armed state | Pulse generation | |||
| SSW1*2 (L16-5) - Body ground | R - Body ground | Intrusion sensor cancel switch signal | Intrusion sensor cancel switch ON | Below 1 V |
| Intrusion sensor cancel switch OFF | 11 to 14 V | |||
| INCS*3 (L16-21) - Body ground | P - Body ground | Tilt sensor signal input | Vehicle tilt is not detected | 11 to 14 V |
| Vehicle tilt is detected during arming preparation state or armed state | Pulse generation |
Tech Tips
*1: w/ Theft Warning Siren
*2: w/ Intrusion Sensor
*3: w/ Tilt Sensor
CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK)
Disconnect the DA and DF ECU connectors.
Measure the resistance according to the value(s) in the table below.
| Terminal No. (Symbols) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| DA-40 (GND2) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
| DA-40 (GND1) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
| DF-1 (ALTB) - Body ground | B - Body ground | ECU power supply | Always | 11 to 14 V |
CHECK FRONT DOOR ECU LH
Disconnect the N10 ECU connector.
Measure the resistance and voltage according to the value(s) in the table below.
| Terminal No. (Symbols) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| N10-11 (CPUB) - Body ground | B*1 - Body ground R*2 - Body ground |
ECU power supply | Always | 11 to 14 V |
| N10-6 (BDR) - Body ground | BE - Body ground | ECU power supply | Always | 11 to 14 V |
| N10-3 (SIG) - Body ground | L*1 - Body ground V*2 - Body ground |
IG power supply | Engine switch on (IG) | 11 to 14 V |
| N10-1 (GND) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
Tech Tips
*1: for LHD
*2: for RHD
If the result is not as specified, there may be a malfunction on the wire harness side.
Reconnect the N10 ECU connector.
Measure the voltage according to the value(s) in the table below.
| Terminal No. (Symbols) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| N10-23 (SID1) - Body ground | L - Body ground | Security indicator signal | Security indicator illuminates (illuminates only for 60 sec. in alarm sounding state (it is blinking when system is in armed state)) | 3 to 6 V |
CHECK FRONT DOOR ECU RH
Disconnect the N1 ECU connector.
Measure the resistance and voltage according to the value(s) in the table below.
| Terminal No. (Symbols) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| N1-11 (CPUB) - Body ground | R*1 - Body ground B*2 - Body ground |
ECU power supply | Always | 11 to 14 V |
| N1-6 (BDR) - Body ground | BE - Body ground | ECU power supply | Always | 11 to 14 V |
| N1-3 (SIG) - Body ground | V*1 - Body ground L*2 - Body ground |
IG power supply | Engine switch on (IG) | 11 to 14 V |
| N1-1 (GND) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
Tech Tips
*1: for LHD
*2: for RHD
If the result is not as specified, there may be a malfunction on the wire harness side.
Reconnect the N1 ECU connector.
Measure the voltage according to the value(s) in the table below.
| Terminal No. (Symbols) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| N1-23 (SID1) - Body ground | L - Body ground | Security indicator signal | Security indicator illuminates (illuminates only for 60 sec. in alarm sounding state (it is blinking when system is in armed state)) | 3 to 6 V |
CHECK MULTIPLEX NETWORK FRONT LIGHT ECU (FRONT CONTROLLER)
Disconnect the A50, A51, A52 and B14 ECU connectors.
Measure the resistance and voltage according to the value(s) in the table below.
| Terminal No. (Symbols) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| A52-5 (ALTB) - Body ground | L - Body ground | +B power supply | Always | 11 to 14 V |
| A52-1 (BATB) - Body ground | P - Body ground | +B power supply | Always | 11 to 14 V |
| A50-1 (FMB3) - Body ground | LG - Body ground | +B power supply | Always | 11 to 14 V |
| A50-5 (FMIG) - Body ground | Y - Body ground | IG power supply | Engine switch on (IG) | 11 to 14 V |
| A50-2 (E) - 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 A50, A51, A52 and B14 ECU connectors.
Measure the voltage and resistance according to the value(s) in the table below.
| Terminal No. (Symbols) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| A52-4 (SH-) - Body ground | W - Body ground | Security horn signal | Security horn is sounding (theft deterrent system is in alarm sounding state) | Pulse generation |
| B14-21 (HDCY) - Body ground | G - Body ground | Engine hood courtesy switch signal | Engine hood closed | 10 kΩ or higher |
| Engine hood open | Below 1 Ω |