| Last Modified: 11-29-2007 | 1.6 U | |
| Service Category: Vehicle Interior | Section: Door Lock | |
| Model Year: 2008 | Model: Sequoia | Doc ID: RM000002YKO005X |
| Title: DOOR LOCK: KEY REMINDER WARNING SYSTEM: TERMINALS OF ECU (2008 Sequoia) | ||
TERMINALS OF ECU
1. CHECK MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)
(a) Disconnect the H1, H4, DA, DB and DD ECU 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 |
|---|---|---|---|---|
|
DD-62 (GND1) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
|
DD-62 (GND2) - Body ground |
||||
|
DB-13 (BECU) - Body ground |
GR - Body ground |
Power source |
Always |
11 to 14 V |
|
DA-1 (ALTB) - Body ground |
B - Body ground |
|||
|
H4-24 (DCTY) - Body ground |
BR - Body ground |
Front door courtesy switch LH signal |
Switch pushed (Door closed) |
Below 1 Ω |
|
Switch Not pushed (Door open) |
10 kΩ or higher |
|||
|
H1-5 (KSW) - Body ground |
LG - Body ground |
Key unlock warning switch signal |
No key is in ignition key cylinder |
10 kΩ or higher |
|
Key is in ignition key cylinder |
Below 1 Ω |
HINT:
lf the result is not as specified, the ECU may have a malfunction.
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