TERMINALS OF ECU
Text in Illustration
*a |
Component without harness connected (Skid Control ECU [Brake Actuator Assembly]) |
- |
- |
Terminal No. (Symbol) |
Terminal Description |
---|---|
1 (GND2) |
Pump motor ground |
2 |
- (Not used) |
3 (EXI)*1 |
4WD detection switch (Transfer shift actuator assembly) input |
A.D.D. position switch (Differential motor actuator assembly) signal input |
|
4 |
- (Not used) |
5 (EXI4)*1 |
L4 detection switch (Transfer shift actuator assembly) input |
6 |
- (Not used) |
7 (STP2)*2 |
Stop light switch assembly input |
8 |
- (Not used) |
9 |
- (Not used) |
10 (CANL) |
CAN communication line L |
11 (EXI3) |
Back up light sw input |
12 (IG1) |
ECU power supply input |
13 (BM) |
Motor relay power supply |
14 (SP1) |
Speed signal output for speedometer |
15 (RR-) |
Rear wheel speed RH (-) signal input |
16 (RR+) |
Rear wheel speed RH (+) power supply output |
17 (FL-) |
Front wheel speed LH (-) signal input |
18 (FL+) |
Front wheel speed LH (+) power supply output |
19 |
- (Not used) |
20 |
- (Not used) |
21 |
- (Not used) |
22 (CANH) |
CAN communication line H |
23 |
- (Not used) |
24 (TS)*3 |
Sensor check input |
25 (GND1) |
Skid control ECU (Brake actuator assembly) ground |
26 (STPO)*2 |
STOP Relay output |
27 (HDCS) |
4WD identification signal input*1 |
28 (RL-) |
Rear wheel speed LH (-) signal input |
29 (RL+) |
Rear wheel speed LH (+) power supply output |
30 (FR-) |
Front wheel speed RH (-) signal input |
31 (FR+) |
Front wheel speed RH (+) power supply output |
32 |
- (Not used) |
33 (CSW) |
VSC OFF switch input |
34 |
- (Not used) |
35 (STP) |
STOP Relay input |
36 |
- (Not used) |
37 |
- (Not used) |
38 (+BS) |
Solenoid relay power supply |
1. TERMINAL INSPECTION
(a) Disconnect the connector and measure the voltage or resistance on the wire harness side.
Text in Illustration
*a |
Front view of wire harness connector (to Skid Control ECU [Brake Actuator Assembly]) |
- |
- |
HINT:
Voltage cannot be measured with the connector connected to the skid control (brake actuator assembly) as the connector is watertight.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
S1-1 (GND2) - Body ground |
W-B - Body ground |
Pump motor ground |
Always |
Below 1 Ω |
S1-3 (EXI) - Body ground*1 |
LG - Body ground |
4WD detection switch (Transfer shift actuator assembly) input |
|
11 to 14 V |
A.D.D. position switch (Differential motor actuator assembly) signal input |
|
11 to 14 V |
||
S1-5 (EXI4) - Body ground*1 |
GR - Body ground |
L4 detection switch (Transfer shift actuator assembly) input |
|
11 to 14 V |
S1-7 (STP2) - Body ground |
L - Body ground |
Stop light switch assembly input |
Stop light switch assembly on → off (Brake pedal depressed → released) |
8 to 14 V → Below 1.5 V |
S1-12 (IG1) - Body ground |
G - Body ground |
ECU power supply input |
Ignition switch ON |
11 to 14 V |
S1-13 (BM) - Body ground |
B - Body ground |
Motor relay power supply |
Always |
11 to 14 V |
S1-14 (SP1) - Body ground |
G - Body ground |
Speed signal output for speedometer |
Ignition switch ON |
11 to 14 V |
S1-25 (GND1) - Body ground |
W-B - Body ground |
Skid control ECU (Brake actuator assembly) ground |
Always |
Below 1 Ω |
S1-26 (STPO) - Body ground |
B - Body ground |
STOP Relay output |
Ignition switch ON |
11 to 14 V |
S1-33 (CSW) - Body ground |
GR - Body ground |
VSC OFF switch input |
VSC OFF switch pressed and held → released |
Below 1 Ω → 10 kΩ or higher |
S1-35 (STP) - Body ground |
SB - Body ground |
STOP Relay input |
Stop light switch assembly on → off (Brake pedal depressed → released) |
8 to 14 V → Below 1.5 V |
S1-38 (+BS) - Body ground |
R - Body ground |
Solenoid relay power supply |
Always |
11 to 14 V |
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Installation
INSTALLATION
CAUTION / NOTICE / HINT
HINT:
Perform "Inspection After Repairs" after replacing the fuel injector assembly
(See page ).
PROCEDURE
1. INSTALL FUEL INJECTOR ASSEMBLY
HINT:
Perform "Inspection After Repairs" after replacing the fuel injector assembly
(See p ...
Reassembly
REASSEMBLY
CAUTION / NOTICE / HINT
HINT:
Use the same procedures for both the LH and RH sides.
The procedure described below is for the LH side.
PROCEDURE
1. INSTALL SIDE TURN SIGNAL LIGHT ASSEMBLY (w/ Side Turn Signal Light)
2. INSTALL OUTER MIRROR COVER (w/o Side Turn Si ...