TERMINALS OF ECU
1. TERMINALS OF ECU
*1 |
Component without harness connected (Brake Actuator (Skid Control ECU)) |
Terminal No. (Symbol) |
Terminal Description |
---|---|
1 (GND2) |
Pump motor ground |
2 (+BM) |
Motor relay power supply |
3 (+BS) |
Solenoid relay power supply |
4 (GND1) |
Skid control ECU ground |
5 (FL-) |
Front wheel speed LH (-) signal input |
6 (RL+) |
Rear wheel speed LH (+) signal input |
8 (RR+) |
Rear wheel speed RH (+) signal input |
9 (FR+) |
Front wheel speed RH (+) signal input |
10 (FR-) |
Front wheel speed RH (-) signal input |
11 (D/G) |
Diagnosis tester communication line |
13 (STP2) |
Stop light control relay input |
14 (CANL) |
CAN communication line L |
16 (TS) |
Sensor check input |
17 (CSW) |
VSC OFF switch input |
20 (FSW+) |
Brake pedal load sensing switch input |
26 (FL+) |
Front wheel speed LH (+) signal input |
27 (RL-) |
Rear wheel speed LH (-) signal input |
28 (IG1) |
ECU power supply |
29 (RR-) |
Rear wheel speed RH (-) signal input |
30 (STP) |
Stop light switch input |
33 (SP1) |
Speed signal output for speedometer |
35 (CANH) |
CAN communication line H |
39 (STP0) |
Stop light control relay output |
2. TERMINAL INSPECTION
(a) Disconnect the connector and measure the voltage and resistance on the wire harness side.
*1 |
Front view of wire harness connector (to Brake Actuator (Skid Control ECU)) |
HINT:
Voltage cannot be measured with the connector connected to the skid control ECU because the connector is watertight.
Standard
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
A42-1 (GND2) - Body ground |
W-B - Body ground |
Pump motor ground |
Always |
Below 1 Ω |
A42-2 (+BM) - Body ground |
Y - Body ground |
Motor relay power supply |
Always |
11 to 14 V |
A42-3 (+BS) - Body ground |
GR - Body ground |
Solenoid relay power supply |
Always |
11 to 14 V |
A42-4 (GND1) - Body ground |
W - Body ground |
Skid control ECU ground |
Always |
Below 1 Ω |
A42-13 (STP2) - Body ground |
R - Body ground |
Stop light control relay input |
Stop light switch ON → OFF (Brake pedal depressed → released) |
8 to 14 V → Below 1.5 V |
A42-17 (CSW) - Body ground |
LG - Body ground |
VSC OFF switch input |
VSC OFF switch held ON → OFF (Not pressed) |
Below 1 Ω → 10 kΩ or higher |
A42-20 (FSW+) - Body ground |
R - Body ground |
Brake pedal load sensing switch input |
Brake pedal load sensing switch OFF → ON (Brake pedal depressed → released) |
950 to 1050 Ω → 203 to 223 Ω |
A42-28 (IG1) - Body ground |
GR - Body ground |
ECU power supply |
Ignition switch ON |
11 to 14 V |
A42-30 (STP) - Body ground |
P - Body ground |
Stop light switch input |
Stop light switch ON → OFF (Brake pedal depressed → released) |
8 to 14 V → Below 1.5 V |
A42-39 (STP0) - Body ground |
BR - Body ground |
Stop light control relay output |
Ignition switch ON |
11 to 14 V |
Noise Occurs or Sound Skips when Portable Player Plays
CAUTION / NOTICE / HINT
HINT:
Perform this check with the portable player volume set at an appropriate
level.
Make sure that there are no obstructions between the portable player
and navigation receiver assembly that may block signals, an ...
Certification ECU Communication Stop Mode
DESCRIPTION
Detection Item
Symptom
Trouble Area
Certification ECU Communication Stop Mode
"Smart Access/Smart Key/Wireless Tuner" is not displayed on
"CAN Bus Check&q ...
Dtc Check / Clear
DTC CHECK / CLEAR
1. CHECK DTC
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(d) Turn the Techstream on.
(e) Read the DTCs following the display on the Techstream. Enter the following
menu ...