Terminals Of Ecu
WARNING: This page is about a different variant/trim than selected.
- CHECK POWER MANAGEMENT CONTROL ECU
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Disconnect the A86, L135 and L136 connectors.
- Measure the voltage and resistance according to the value(s) in the table below.
Tester Connection Wiring Color Terminal Description Condition Specified Condition A86-2 (IG2D) - Body ground V - Body ground IG2 relay operation signal Always 131 to 230 Ω A86-23 (STP) - Body ground L - Body ground Stop light switch signal Brake pedal depressed 11 to 14 V A86-23 (STP) - Body ground L - Body ground Stop light switch signal Brake pedal released Below 1 V L135-1 (AM22) - Body ground W - Body ground +B power supply Always 9.5 to 16 V L136-7 (AM21) - Body ground W - Body ground +B power supply Always 9.5 to 16 V L135-6 (E1) - Body ground BR - Body ground Ground Always Below 1 Ω L136-4 (E12) - Body ground BR - Body ground Ground Always Below 1 Ω L136-24 (CA1L) - Body ground W - Body ground CAN communication line Always 10 kΩ or higher L136-25 (CA1H) - Body ground B - Body ground CAN communication line Always 10 kΩ or higher L136-17 (SSW2) - Body ground Y - Body ground Power switch signal Power switch pushed Below 1 Ω L136-17 (SSW2) - Body ground Y - Body ground Power switch signal Power switch not pushed 10 kΩ or higher L135-7 (SSW1) - Body ground B - Body ground Power switch signal Power switch pushed Below 1 Ω L135-7 (SSW1) - Body ground B - Body ground Power switch signal Power switch not pushed 10 kΩ or higher L136-1 (ACCD) - Body ground G - Body ground ACC relay operation signal Always 50.625 to 61.875 Ω L136-2 (IG1D) - Body ground B - Body ground IG1 relay operation signal Always 50.625 to 61.875 Ω L136-11 (LIN2) - Body ground L - Body ground LIN communication line Always 10 kΩ or higher If the result is not as specified, there may be a malfunction in the wire harness.
- Reconnect the A86, L135 and L136 connectors.
- Measure the voltage and check for pulses according to the value(s) in the table below.
Tester Connection Wiring Color Terminal Description Condition Specified Condition A86-2 (IG2D) - L135-6 (E1) V - BR IG2 signal Power switch on (IG) Output voltage at terminal AM21 or AM22 is -2 V or more A86-2 (IG2D) - L135-6 (E1) V - BR IG2 signal Power switch on (ACC) Below 1 V L135-9 (INDW) - L135-6 (E1) G - BR Warning signal Brake pedal depressed, park (P) selected, power switch on (ACC, IG) 8 to 14 V A86-22 (PCON) - L135-6 (E1) LG - BR P position signal Park (P) selected Pulse generation
(See waveform 1)A86-28 (PPOS) - L135-6 (E1) W - BR P position signal Park (P) selected Pulse generation
(See waveform 1)L136-17 (SSW2) - L135-6 (E1) Y - BR Power switch signal Power switch not pushed Output voltage at terminal AM21 or AM22 is -2 V or more L136-17 (SSW2) - L135-6 (E1) Y - BR Power switch signal Power switch pushed Below 1 V L135-7 (SSW1) - L135-6 (E1) B - BR Power switch signal Power switch not pushed Output voltage at terminal AM21 or AM22 is -2 V or more L135-7 (SSW1) - L135-6 (E1) B - BR Power switch signal Power switch pushed Below 1 V L136-1 (ACCD) - L135-6 (E1) G - BR ACC signal Power switch on (ACC) Output voltage at terminal AM21 or AM22 is -2 V or more L136-1 (ACCD) - L135-6 (E1) G - BR ACC signal Power switch off Below 1 V L136-2 (IG1D) - L135-6 (E1) B - BR IG1 signal Power switch on (IG) Output voltage at terminal AM21 or AM22 is -2 V or more L136-2 (IG1D) - L135-6 (E1) B - BR IG1 signal Power switch on (ACC) Below 1 V L135-8 (INDS) - L135-6 (E1) R - BR Vehicle condition signal Brake pedal depressed, park (P) selected 8 to 14 V L135-14 (SPDI) - L135-6 (E1) V - BR Vehicle speed signal Power switch on (IG), wheel rotated slowly Pulse generation
(See waveform 2)L136-20 (IMO) - L135-6 (E1) L - BR Immobiliser communication status Immobiliser communicating Pulse generation
(See waveform 3)L136-21 (IMI) - L135-6 (E1) R - BR Immobiliser communication status Immobiliser communicating Pulse generation
(See waveform 4)If the result is not as specified, the ECU may have a malfunction.
- Using an oscilloscope, check the signal waveform of the ECU.
- Waveform 1
Tester Connection CH1: A86-22 (PCON) - L135-6 (E1)
CH2: A86-28 (PPOS) - L135-6 (E1)Tool Setting 10 V/DIV., 10 ms./DIV. Vehicle Condition Power switch on (IG) - Waveform 2
Tester Connection L135-14 (SPDI) - L135-6 (E1) Tool Setting 5 V/DIV., 10 ms./DIV. Vehicle Condition Driving at approx. 20 km/h (12 mph) HINT:
The wavelength becomes shorter as the vehicle speed increases.
- Waveform 3
Tester Connection L136-20 (IMO) - L135-6 (E1) Tool Setting 5 V/DIV., 500 ms./DIV. Vehicle Condition Within 3 seconds after power switch on (READY), or within 3 seconds after power switch first turned on (IG) after battery disconnected and connected - Waveform 4
Tester Connection L136-21 (IMI) - L135-6 (E1) Tool Setting 5 V/DIV., 50 ms./DIV. Vehicle Condition Power switch on (IG)
- Waveform 1
- CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Disconnect the L62 connector.
- Measure the voltage and resistance according to the value(s) in the table below.
Tester Connection Wiring Color Terminal Description Condition Specified Condition L62-1 (+B) - Body ground B - Body ground +B power supply Always 11 to 14 V L62-9 (CANH) - Body ground BE - Body ground CAN communication line Always 10 kΩ or higher L62-10 (CANL) - Body ground P - Body ground CAN communication line Always 10 kΩ or higher L62-15 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω L62-16 (IG) - Body ground BE - Body ground IG power supply Power switch on (IG) 11 to 14 V L62-29 (LIN) - Body ground L - Body ground LIN communication line Always 10 kΩ or higher If the result is not as specified, there may be a malfunction in the wire harness.
- Reconnect the L62 connector.
- Check for pulses according to the value(s) in the table below.
Tester Connection Wiring Color Terminal Description Condition Specified Condition L62-34 (EFII) - L62-15 (E)*1 L - W-B Immobiliser communication status Immobiliser communicating Pulse generation
(See waveform 1)L62-35 (EFIO) - L62-15 (E)*1 R - W-B Immobiliser communication status Immobiliser communicating Pulse generation
(See waveform 1)L62-7 (CLG5) - L62-15 (E) G - W-B No. 1 indoor electrical key antenna assembly (for front floor) sensor signal Power switch off with door is opened No pulse generation L62-7 (CLG5) - L62-15 (E) G - W-B No. 1 indoor electrical key antenna assembly (for front floor) sensor signal Door is closed Pulse generation
(for 30 seconds)L62-8 (CG5B) - L62-15 (E) R - W-B No. 1 indoor electrical key antenna assembly (for front floor) sensor signal Power switch off with door is opened No pulse generation L62-8 (CG5B) - L62-15 (E) R - W-B No. 1 indoor electrical key antenna assembly (for front floor) sensor signal Door is closed Pulse generation
(for 30 seconds)L62-16 (IG) - Body ground BE - Body ground IG power supply Power switch off Below 1 V L62-16 (IG) - Body ground BE - Body ground IG power supply Power switch on (IG) 11 to 14 V L62-24 (CLG6) - L62-15 (E) GR - W-B No. 2 indoor electrical key antenna assembly (for center floor) sensor signal Power switch off with door is opened No pulse generation L62-24 (CLG6) - L62-15 (E) GR - W-B No. 2 indoor electrical key antenna assembly (for center floor) sensor signal Door is closed Pulse generation
(for 30 seconds)L62-25 (CG6B) - L62-15 (E) BR - W-B No. 2 indoor electrical key antenna assembly (for center floor) sensor signal Power switch off with door is opened No pulse generation L62-25 (CG6B) - L62-15 (E) BR - W-B No. 2 indoor electrical key antenna assembly (for center floor) sensor signal Door is closed Pulse generation
(for 30 seconds)L62-26 (CLG7) - L62-15 (E) G - W-B No. 3 indoor electrical key antenna assembly (for rear floor) sensor signal Power switch off with door is opened No pulse generation L62-26 (CLG7) - L62-15 (E) G - W-B No. 3 indoor electrical key antenna assembly (for rear floor) sensor signal Door is closed Pulse generation
(for 30 seconds)L62-27 (CG7B) - L62-15 (E) R - W-B No. 3 indoor electrical key antenna assembly (for rear floor) sensor signal Power switch off with door is opened No pulse generation L62-27 (CG7B) - L62-15 (E) R - W-B No. 3 indoor electrical key antenna assembly (for rear floor) sensor signal Door is closed Pulse generation
(for 30 seconds)- *1: for Canada
If the result is not as specified, the ECU may have a malfunction.
- Using an oscilloscope, check the signal waveform of the ECU.
- CHECK TRANSMISSION CONTROL ECU ASSEMBLY
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Disconnect the A23 and A24 connectors.
- Measure the voltage and resistance according to the value(s) in the table below.
Tester Connection Wiring Color Terminal Description Condition Specified Condition A24-1 (E1) - Body ground BR - Body ground Ground Always Below 1 Ω A24-5 (E02) - Body ground W-B - Body ground Ground Always Below 1 Ω A24-6 (E01) - Body ground W-B - Body ground Ground Always Below 1 Ω A23-16 (+B) - Body ground L - Body ground Ignition power supply Power switch on (IG) 11 to 14 V A23-16 (+B) - Body ground L - Body ground Ignition power supply Power switch off Below 1 V A23-15 (BATT) - Body ground SB - Body ground +B power supply Except power switch on (READY) 11 to 14 V A23-15 (BATT) - Body ground SB - Body ground +B power supply Power switch on (READY) 11 to 15.5 V A24-15 (CA1L) - Body ground P - Body ground CAN communication line Always 10 kΩ or higher A24-16 (CA1H) - Body ground BE - Body ground CAN communication line Always 10 kΩ or higher A24-24 (LIN) - Body ground L - Body ground LIN communication line Always 10 kΩ or higher - If the result is not as specified, there may be a malfunction in the wire harness.
- CHECK ID CODE BOX (IMMOBILISER CODE ECU) [for Canada]
- Disconnect the L10 connector.
- Measure the resistance and voltage according to the value(s) in the table below.
Tester Connection Wiring Color Terminal Description Condition Specified Condition L10-1 (+B) - L10-8 (GND) B - W-B +B power supply Always 11 to 14 V L10-8 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω L10-3 (LIN1) - Body ground L - Body ground LIN communication line Always 10 kΩ or higher If the result is not as specified, there may be a malfunction in the wire harness.