Terminals Of Ecu
- CHECK INTEGRATION RELAY
- Disconnect the I12 relay connector.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
I12 RELAY CONNECTOR TERMINALS SPECIFIED CONDITIONSSymbols (Terminal No.) Wiring color Condition Specified Condition L1 (I12-9) - Body ground L-W - Body ground with Power window
Master switch (Manual door lock operation) OFF --> LOCK10 kΩ or higher --> Below 1 Ω L1 (I12-9) - Body ground L-W - Body ground without Power window
Driver's door control switch (Manual operation) OFF --> LOCK10 kΩ or higher --> Below 1 Ω L1 (I12-9) - Body ground L-W - Body ground Passenger's door control switch (Manual operation) OFF --> LOCK 10 kΩ or higher --> Below 1 Ω L2 (I12-7) - Body ground G - Body ground Key in driver's door key cylinder LOCK --> Other position Below 1 Ω --> 10 kΩ or higher L2 (I12-7) - Body ground G - Body ground Key in passenger's door key cylinder LOCK --> Other position Below 1 Ω --> 10 kΩ or higher UL1 (I12-8) - Body ground L - Body ground with Power window Master switch (Manual door lock operation) OFF --> UNLOCK 10 kΩ or higher --> Below 1 Ω UL1 (I12-8) - Body ground L - Body ground without Power window Door control switch (Manual operation) OFF --> UNLOCK 10 kΩ or higher --> Below 1 Ω UL1 (I12-8) - Body ground L - Body ground Passenger's door control switch (Manual operation) OFF --> UNLOCK 10 kΩ or higher --> Below 1 Ω UL2 (I12-5) - Body ground L-B - Body ground Key in passenger's door key cylinder UNLOCK --> Other position Below 1 Ω --> 10 kΩ or higher UL3 (I12-6) - Body ground L-Y - Body ground Key in driver's door key cylinder UNLOCK --> Other position Below 1 Ω --> 10 kΩ or higher LSWD (I12-19) - Body ground W - Body ground Driver's door lock control knob LOCK --> UNLOCK 10 kΩ or higher --> Below 1 Ω LSWP (I12-18) - Body ground W-R - Body ground Front passenger's door lock control knob LOCK --> UNLOCK 10 kΩ or higher --> Below 1 Ω PCTY (I12-13) - Body ground R-W - Body ground Front passenger's door fully closed --> Opened 10 kΩ or higher --> Below 1 Ω GL5 (I12-23) - Body ground L-W - Body ground Glass hatch opener switch OFF --> ON 10 kΩ or higher --> Below 1 Ω If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the I12 relay connector.
- Measure the voltage according to the value(s) in the table below.
Standard voltage
STANDARD VOLTAGESymbols (Terminal No.) Wiring color Condition Specified Condition ACTD (I12-1) - Body ground R - Body ground Key in driver's door lock cylinder OFF --> LOCK 0 V --> 10 to 14 V --> Below 1 V ACTG (I12-2) - Body ground W - Body ground Glass hatch opener switch OFF --> ON 0 V --> 10 to 14 V --> Below 1 V If the result is not as specified, the integration relay may have a malfunction.
- CHECK INSTRUMENT PANEL J/B (INTEGRATION RELAY)
- Inspect the ID, IF, IH and IJ J/B connectors.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
STANDARD RESISTANCESymbols (Terminal No.) Wiring color Condition Specified Condition KSW (IJ-8) - Body ground L-B - Body ground No key in ignition switch lock cylinder --> Yes 10 kΩ or higher --> Below 1 Ω GND (IF-4) - Body ground W-B - Body ground Always Below 1 Ω GND (IH-10) - Body ground W-B - Body ground Always Below 1 Ω DCTY (ID-1) - Body ground R-W - Body ground Driver's door fully closed --> Opened 10 kΩ or higher --> Below 1 Ω P-DR (ID-14) - Body ground R-B - Body ground Rear LH door fully closed --> Opened 10 kΩ or higher --> Below 1 Ω P-DR (ID-15) - Body ground R-Y - Body ground Rear RH door fully closed --> Opened 10 kΩ or higher --> Below 1 Ω P-DR (ID-16) - Body ground R - Body ground - Back door fully closed --> Opened
- Glass hatch fully closed --> Opened
10 kΩ or higher --> Below 1 Ω If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the connectors.
- Measure the voltage according to the value(s) in the table below.
Standard voltage
STANDARD VOLTAGESymbols (Terminal No.) Wiring color Condition Specified Condition IG (IA-1) - Body ground B-Y - Body ground Always 10 to 14 V IG (IB-1) - Body ground W - Body ground Always 10 to 14 V KSW (IJ-8) - Body ground L-B - Body ground No key in ignition switch key cylinder --> Yes 10 to 14 V --> 0 V --> ACT+ (IK-2) - Body ground L - Body ground Key in driver's door lock cylinder OFF --> LOCK 0 V --> 10 to 14 V --> Below 1 V ACT+ (ID-9) Body ground L - Body ground Key in driver's door lock cylinder OFF --> UNLOCK 0 V --> 10 to 14 V --> Below 1 V ACT- (IK-5) - Body ground R - Body ground Key in driver's door lock cylinder OFF --> LOCK 0 V --> 10 to 14 V --> Below 1 V ACT- (ID-20) - Body ground R - Body ground Key in driver's door lock cylinder OFF --> UNLOCK 0 V --> 10 to 14 V --> Below 1 V If the result is not as specified, the integration relay or instrument panel J/B may have a malfunction.