Terminals Of Ecu
WARNING: This page is about a different car, the 2006 Toyota Tundra and 2005 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.
ECU TERMINALS REFERENCE
| Symbols (Terminal No.) | Wiring Color | Condition | STD Voltage (V) |
|---|---|---|---|
| ACTY - GND (B9-1 - B11-15) |
L-R-W-B | Door indicator does not light up | Below 1 V |
| Door indicator light up | 10 to 14 V | ||
| HCTY - GND (B9-5 - B11-15) |
L-W - W-B | Hood courtesy switch ON (Open) | Below 1 V |
| Hood courtesy switch OFF (Close) | 10 to 14 V | ||
| HR - GND (B9-6 - B11-15) |
W-R - W-B | Horn switch ON | Below 1 V |
| Horn switch OFF | 10 to 14 V | ||
| DIM*1
- GND (B9-7 - B11-15) |
W-L - W-B | Light control switch OFF | Below 1 V |
| Light control switch ON | 10 to 14 V | ||
| H-ON*1
- GND (B9-8 - B11-15) |
R-W - W-B | Light control switch OFF | Below 1 V |
| Light control switch ON | 10 to 14 V | ||
| BZR - GND (B9-9 - B11-15) |
LG - W-B | Buzzer does not sound | Below 1 V |
| Buzzer sound | 10 to 14 V | ||
| CGB - GND (B10-10 - B11-15) |
P-W-B | Cargo light switch ON | Below 1 V |
| Cargo light switch OFF | 10 to 14 V | ||
| CGLP - GND (B10-11 - B11-15) |
B-W - W-B | Cargo light switch ON | Below 1 V |
| Cargo light switch OFF | 10 to 14 V | ||
| HF - GND (B9-12 - B11-15) |
R-L - W-B | Headlight control switch position FLASH | Below 1 V |
| Headlight control switch position is except FLASH | 10 to 14 V | ||
| HU - GND (B9-13 - B11-15) |
Y-R - W-B | Headlight control switch position is Hi beam or FLASH | Below 1 V |
| Headlight control switch position is except Hi beam or FLASH | 10 to 14 V | ||
| TAIL - GND (B9-14 - B11-15) |
G - W-B | Light control switch TAIL or HEAD | Below 1 V |
| Light control switch OFF | 10 to 14 V | ||
| HEAD - GND (B9-15 - B11-15) |
G-Y - W-B | Light control switch HEAD | Below 1 V |
| Light control switch OFF or TAIL | 10 to 14 V | ||
| CGSW - GND (B9-16 - B11-15) |
W-G - W-B | Cargo light switch ON | Below 1 V |
| Cargo light switch OFF | 10 to 14 V | ||
| FFOG - GND (B9-17 - B11-15) |
G-B - W-B | Headlight dimmer switch LOW, fog lights switch OFF | Below 1 V |
| Headlight dimmer switch LOW, fog lights switch ON | 10 to 14 V | ||
| CHG - GND (B9-18 - B11-15) |
Y-G - W-B | Light control switch OFF | Below 1 V |
| Light control switch ON | 10 to 14 V | ||
| IG - GND (B10-1 - B11-15) |
B-R - W-B | Ignition switch LOCK or ACC | Below 1 V |
| Ignition switch ON | 10 to 14 V | ||
| ACC - GND (B10-3 - B11-15) |
GR - W-B | Ignition switch OFF | Below 1 V |
| Ignition switch ACC or ON | 10 to 14 V | ||
| HRLY - GND (B10-4 - B11-15) |
LG-R - W-B | Headlight relay ON | Below 1 V |
| Headlight relay OFF | 10 to 14 V | ||
| TRLY - GND (B10-5 - B11-15) |
LG - W-B | Taillight relay ON | Below 1 V |
| Taillight relay OFF | 10 to 14 V | ||
| MPX1 - (B10-7 -) |
W-L- | Multiplex communication circuit | - |
| ILE - GND (B10-8 - B11-15) |
L-B - W-B | Each door are opened | Below 1 V |
| All doors are closed | 10 to 14 V | ||
| BDR - GND (B10-9 - B11-15) |
L-W - W-B | Constant | 10 to 14 V |
| RLU - GND (B10-12 - B11-15) |
W-R - W-B | Rear left side power window UP operation | Below 1 V |
| RLD - GND (B10-13 - B11-15) |
L-W-B | Rear left side power window DOWN operation | Below 1 V |
| LSWL - GND (B10-14 - B11-15) |
P-L - W-B | Rear LH door courtesy switch ON (Unlock) | Below 1 V |
| Rear LH door courtesy switch OFF (Lock) | 10 to 14 V | ||
| DCTY - GND (B10-15 - B11-15) |
GR-R - W-B | Driver door courtesy switch ON (Open) | Below 1 V |
| Driver door courtesy switch OFF (Close) | 10 to 14 V | ||
| RLCY - GND (B10-16 - B11-15) |
R-W - W-B | Rear LH door courtesy switch ON (Open) | Below 1 V |
| Rear LH door courtesy switch OFF (Close) | 10 to 14 V | ||
| SH - GND (B10-18 - B11-15) |
L-R - W-B | Security horn not sounding | Below 1 V |
| Security horn sounding | 10 to 14 V | ||
| ACT+ - GND (B11-1 - B11-15) |
L-R - W-B | Power door lock not operating or operating to UNLOCK | Below 1 V |
| Power door lock operating to LOCK | 10 to 14 V | ||
| ACT- - GND (B11-2 - B11-15) |
L-B - W-B | Power door lock not operating or operating to LOCK | Below 1 V |
| Power door lock operating to UNLOCK twice | 10 to 14 V | ||
| PKB - GND (B11-3 - B11-15) |
LG-R - W-B | Parking brake is applied | Below 1 V |
| Parking brake is not applied | 10 to 14 V | ||
| RRCY - GND (B11-4 - B11-15) |
R-W - W-B | Rear RH door courtesy switch ON (Open) | Below 1 V |
| Rear RH door courtesy switch OFF (Close) | 10 to 14 V | ||
| RRU - GND (B11-5 - B11-15) |
G-Y - W-B | Rear right side power window UP operation | Below 1 V |
| RRD - GND (B11-6 - B11-15) |
L-W-B | Rear right side power window DOWN operation | Below 1 V |
| LSWR - GND (B11-7 - B11-15) |
P-B - W-B | Rear RH door unlock detection switch ON (Unlock) | Below 1 V |
| Rear RH door unlock detection switch OFF (Lock) | 10 to 14 V | ||
| PCTY - GND (B11-8 - B11-15) |
LG-B - W-B | Passenger door courtesy switch ON (Open) | Below 1 V |
| Passenger door courtesy switch OFF (Close) | 10 to 14 V | ||
| RDA - GND (B11-9 - B11-15) |
R-Y - W-B | Wireless door lock control system is operated | Below 1 V |
| Wireless door lock control system is not operated | 10 to 14 V | ||
| PRG - GND (B11-10-B11-15) |
V-W-B | Wireless door look receiver communication circuit | - |
| ACTD - GND (B11-14 - B11-15) |
R-B - W-B | Power door lock not operating or operating to UNLOCK | Below 1 V |
| Power door lock not operating to LOCK | 10 to 14 V | ||
| GND - Body ground (B11-15 - Body ground) |
W-B - Body ground | Constant | Below 1 V |
| MPX3*2
- (B11-16-) |
P - | Multiplex communication circuit | - |
| IND - GND (B11-17 - B11-15) |
B-O - W-B | Security indicator dies not lights up | Below 1 V |
| Security indicator lights up | 10 to 14 V | ||
| HIND*1
- GND (B11-18 - B11-15) |
R-G - W-B | Constant | Below 1 V |
| Light control switch HI or FLASH | 10 to 14 V | ||
| MPX2 - (B11-19-) |
B - | Multiplex communication circuit | - |
| OBD2 - (B11-20 - -) |
W - | DLC3 communication circuit | - |
| Key unlock warning switch OFF (key not inserted) | 10 to 14 V | ||
| HORN - GND (B11-21 - B11-15) |
B-Y - W-B | Horn switch OFF | Below 1 V |
| Horn switch ON | 10 to 14 V | ||
| KSW - GND (B11-22 - B11-15) |
Y-G - W-B | Key unlock warning switch ON (Key inserted) | Below 1 V |
| Key unlock warning switch OFF (Key not inserted) | 10 to 14 V | ||
| KSW2 - GND (B11-23 - B11-15) |
Y-G - W-B | Key unlock warning switch ON (Key inserted) | Below 1 V |
| Key unlock warning switch OFF (Key not inserted) | 10 to 14 V | ||
| BECU - GND (B11-25 - B11-15) |
W-R - W-B | Constant | 10 to 14 V |
HINT:
*1 : w/ Daytime running light
*2 : w/ Sliding roof