| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000VJGZ |
| Model Year Start: 2016 | Model: Sienna | Prod Date Range: [12/2015 - ] |
| Title: DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM(w/ Smart Key System): TERMINALS OF ECU; 2016 - 2020 MY Sienna [12/2015 - ] | ||
TERMINALS OF ECU
1. CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU
(a) Remove the main body ECU.
(b) Measure the voltage and resistance according to the value(s) in the table below.
HINT:
Measure the values on the wire harness side with the connector disconnected.
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
2I-32 (IG) - Body ground |
- |
Ignition power supply (IG signal) |
Engine switch on (IG)→ off |
11 to 14 V → Below 1 V |
|
2I-29 (ACC) - Body ground |
- |
Ignition power supply (ACC signal) |
Engine switch on (ACC) → off |
11 to 14 V → Below 1 V |
|
2I-31 (ALTB) - Body ground |
- |
+B (power system alternator system) power supply |
Always |
11 to 14 V |
|
2I-11 (GND1) - Body ground |
- |
Ground |
Always |
Below 1 Ω |
If the result is not as specified, there may be a malfunction on the wire harness side.
(c) Reinstall the main body ECU.
(d) Measure the voltage according to the value(s) in the table below.
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
2I-2 (FLCY) - Body ground |
- |
Driver side door courtesy light switch input |
Driver side door CLOSED (OFF) |
Pulse generation |
|
Driver side door OPEN (ON) |
Below 1 V |
|||
|
2I-4 (FRCY) - Body ground |
- |
Passenger side courtesy light switch input |
Passenger side door CLOSED (OFF) |
Pulse generation |
|
Passenger side door OPEN (ON) |
Below 1 V |
|||
|
D13-6 (RCTY) - Body ground |
L - Body ground |
Rear courtesy light switch RH input |
Rear door RH CLOSED (OFF) |
Pulse generation |
|
Rear door RH OPEN (ON) |
Below 1 V |
|||
|
D12-3 (LCTY) - Body ground |
GR - Body ground |
Rear courtesy light switch LH input |
Rear door LH CLOSED (OFF) |
Pulse generation |
|
Rear door LH OPEN (ON) |
Below 1 V |
|||
|
D13-19 (BCTY) - Body ground |
GR - Body ground |
Back door courtesy light switch input |
Back door CLOSED (OFF) |
Pulse generation |
|
Back door OPEN (ON) |
Below 1 V |
|||
|
2F-16 (HORN) - Body ground |
LG - Body ground |
Vehicle horn signal |
Vehicle horn is sounding (Panic alarm system is in alarm sounding state) |
Below 1 V → 12 V |
|
2F-20 (BZR) - Body ground |
G - Body ground |
Wireless door lock buzzer signal |
Wireless door lock buzzer OFF |
Below 1 V |
|
Wireless door lock buzzer ON |
Pulse generation |
If the result is not as specified, the main body ECU or instrument panel junction block assembly may have a malfunction.
2. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
(a) Disconnect the certification ECU (smart key ECU assembly) connectors.
(b) Measure the resistance and voltage according to the value(s) in the table below.
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
D88-15 (E) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
|
D88-1 (+B) - D88-15 (E) |
G - W-B |
Battery power supply |
Always |
11 to 14 V |
|
D88-16 (IG) - D88-15 (E) |
B - W-B |
IG power supply |
Engine switch on (IG) |
11 to 14 V |
|
Engine switch on (IG) |
Below 1 V |
- If the result is not as specified, there may be a malfunction on the wire harness side.
(c) Reconnect the certification ECU (smart key ECU assembly) connectors.
(d) Measure the voltage according to the value(s) in the table below.
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
D87-16 (RSSI) - D88-15 (E) |
R - W-B |
Door control receiver output signal |
Engine switch off, all doors closed and transmitter switch not pressed |
11 to 14 V |
|
Engine switch off, all doors closed and transmitter switch pressed |
Below 2 V |
|||
|
D87-15 (RDA) - D88-15 (E) |
Y - W-B |
Door control receiver date input signal |
Engine switch off, all doors closed and transmitter switch not pressed |
11 to 14 V pulse generation at regular intervals |
|
Engine switch off, all doors closed and transmitter switch pressed |
Pulse generation |
|||
|
D87-5 (RCO) - D88-15 (E) |
V - W-B |
Supply battery to door control receiver |
Engine switch off, all doors closed and transmitter switch pressed |
4.5 to 5.5 V |
- If the result is not as specified, the certification ECU (smart key ECU assembly) may have a malfunction.
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