| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000VJGN |
| Model Year Start: 2016 | Model: Sienna | Prod Date Range: [12/2015 - ] |
| Title: DOOR LOCK: KEY REMINDER WARNING 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) Disconnect the D13 and D14 main body ECU connectors.
(c) Measure the resistance and voltage between each terminal of the wire harness connectors and body ground.
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
2I-2 (FLCY) - Body ground |
- |
Front door courtesy light switch LH input |
Driver door Closed (off) → Open (on) |
10 kΩ or higher → Below 1 Ω |
|
2I-11 (GND1) - Body ground |
- |
Ground |
Always |
Below 1 Ω |
|
2I-29 (ACC) - Body ground |
- |
Ignition power supply (ACC signal) |
Ignition switch ACC → off |
11 to 14 V → Below 1 V |
|
2I-30 (BECU) - Body ground |
- |
+B (power system signal system) power supply |
Always |
11 to 14 V |
|
2I-31 (ALTB) - Body ground |
- |
+B (power system alternator system) power supply |
Always |
11 to 14 V |
|
2I-32 (IG) - Body ground |
- |
Ignition power supply (IG signal) |
Ignition switch ON → off |
11 to 14 V → Below 1 V |
|
D13-17 (KSW) - Body ground |
R - Body ground |
Unlock warning switch input |
No key in ignition key cylinder (off) → Key inserted (on) |
10 kΩ or higher → Below 1 Ω |
|
D14-3 (GND2) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
HINT:
If the result is not as specified, there may be a malfunction on the wire harness side.
(d) Reinstall the main body ECU.
(e) Reconnect the D13 and D14 main body ECU connectors.
(f) Measure the voltage between each terminal of the wire harness side connectors and body ground.
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
D13-17 (KSW) - Body ground |
R - Body ground |
Unlock warning switch input |
No key in ignition key cylinder (off) → Key inserted (on) |
11 to 14 V → Below 1 V |
|
2H-34 (FLCY) - Body ground |
P - Body ground |
Front door courtesy light switch LH input |
Driver door Closed (off) →Open (on) |
11 to 14 V (Pulse generation) → Below 1 V |
If the result is not as specified, the main body ECU may have a malfunction.
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