| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001QINM |
| Model Year Start: 2021 | Model: RAV4 | Prod Date Range: [08/2020 - 12/2021] |
| Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster): TERMINALS OF ECU; 2021 MY RAV4 RAV4 HV [08/2020 - 12/2021] | ||
TERMINALS OF ECU
TERMINALS OF ECU
|
*a |
Component without harness connected (Skid Control ECU (Brake Booster with Master Cylinder Assembly)) |
- |
- |
|
Terminal No. (Symbol) |
Terminal Description |
|---|---|
|
1 (MRI1) |
Motor power supply input 1 |
|
2 (MRI2) |
Motor power supply input 2 |
|
3 (STPO) |
Stop light control relay (Stop light switch assembly) output |
|
4 |
- (Not used) |
|
5 (FR-) |
Front speed sensor RH (-) signal input |
|
6 (STP2) |
Stop light control relay (Stop light switch assembly) input |
|
7 (RL-) |
Rear speed sensor LH (-) signal input |
|
8 (CSW) |
VSC OFF switch input |
|
9 (RR-) |
Rear speed sensor RH (-) signal input |
|
10 (HZRI) |
Brake hold switch (Integration control and panel assembly) input |
|
11 (SP1) |
Speed sensor signal output |
|
12 (IG2) |
IG2 power source input |
|
13 |
- (Not used) |
|
14 (BI) |
+B power source input |
|
15 (BS) |
Solenoid power supply input |
|
16 (IG1) |
IG1 power source input |
|
17 |
- (Not used) |
|
18 (FR+) |
Front speed sensor RH (+) power supply output |
|
19 (CTY) |
Front door courtesy light switch assembly input |
|
20 (RL+) |
Rear speed sensor LH (+) power supply output |
|
21 |
- (Not used) |
|
22 (RR+) |
Rear speed sensor RH (+) power supply output |
|
23 (GND6) |
Skid control ECU (Brake booster with master cylinder assembly) ground 6 |
|
24 (GND5) |
Skid control ECU (Brake booster with master cylinder assembly) ground 5 |
|
25 (GND4) |
Skid control ECU (Brake booster with master cylinder assembly) ground 4 |
|
26 (GND3) |
Skid control ECU (Brake booster with master cylinder assembly) ground 3 |
|
27 (GND2) |
Skid control ECU (Brake booster with master cylinder assembly) ground 2 |
|
28 (GND) |
Skid control ECU (Brake booster with master cylinder assembly) ground |
|
29 (MRO1) |
Motor power supply output 1 |
|
30 (MRO2) |
Motor power supply output 2 |
|
31 (FL+) |
Front speed sensor LH (+) power supply output |
|
32 (FL-) |
Front speed sensor LH (-) signal input |
|
33 (STP) |
Stop light switch assembly input |
|
34 (CA2L) |
CAN communication line 2 (L) |
|
35 (CA2H) |
CAN communication line 2 (H) |
|
36 (LBL) |
Brake fluid level warning switch input |
|
37 (CA1H) |
CAN communication line 1 (H) |
|
38 (CA1L) |
CAN communication line 1 (L) |
|
39 (VCSK) |
Brake pedal stroke sensor assembly power supply output |
|
40 (SKS2) |
Brake pedal stroke sensor assembly signal input 2 |
|
41 (SKG) |
Brake pedal stroke sensor assembly ground |
|
42 (SKS) |
Brake pedal stroke sensor assembly signal input |
TERMINAL INSPECTION
(a) Disconnect the connector and measure the voltage or resistance on the wire harness side.
|
*a |
Front view of wire harness connector (to Skid Control ECU (Brake Booster with Master Cylinder Assembly)) |
- |
- |
HINT:
The voltage cannot be measured with the connector connected to the skid control ECU (brake booster with master cylinder assembly) as the connector is watertight.
Standard
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
A42-1 (MRI1) - Body ground |
B - Body ground |
Motor power supply input 1 |
Always |
11 to 14 V |
|
A42-2 (MRI2) - Body ground |
G - Body ground |
Motor power supply input 2 |
Always |
11 to 14 V |
|
A42-3 (STPO) - Body ground |
L - Body ground |
Stop light control relay (Stop light switch assembly) output |
Ignition switch ON |
11 to 14 V |
|
A42-6 (STP2) - Body ground |
BE - Body ground |
Stop light control relay (Stop light switch assembly) input |
Brake pedal depressed → released |
11 to 14 V → Below 1.5 V |
|
A42-8 (CSW) - Body ground |
L - Body ground |
VSC OFF switch input |
VSC OFF switch pressed and held → released |
Below 1 Ω → 10 kΩ or higher |
|
A42-10 (HZRI) - Body ground |
LG - Body ground |
Brake hold switch (Integration control and panel assembly) input |
Brake hold switch (integration control and panel assembly) pressed and held → released |
Below 1 Ω → 10 kΩ or higher |
|
A42-12 (IG2) - Body ground |
R - Body ground |
IG2 power source input |
Ignition switch ON |
11 to 14 V |
|
A42-14 (B1) - Body ground |
SB - Body ground |
+B power source input |
Always |
11 to 14 V |
|
A42-15 (BS) - Body ground |
BE - Body ground |
Solenoid power supply input |
Always |
11 to 14 V |
|
A42-16 (IG1) - Body ground |
GR - Body ground |
IG1 power source input |
Ignition switch ON |
11 to 14 V |
|
A42-19 (CTY) - Body ground |
V - Body ground |
Front door courtesy light switch assembly input |
Driver door closed → open |
Pulse generation → Below 1.5 V |
|
A42-23 (GND6) - Body ground |
W-B - Body ground |
Skid control ECU (Brake booster with master cylinder assembly) ground 6 |
Always |
Below 1 Ω |
|
A42-24 (GND5) - Body ground |
W-B - Body ground |
Skid control ECU (Brake booster with master cylinder assembly) ground 5 |
Always |
Below 1 Ω |
|
A42-25 (GND4) - Body ground |
W-B - Body ground |
Skid control ECU (Brake booster with master cylinder assembly) ground 4 |
Always |
Below 1 Ω |
|
A42-26 (GND3) - Body ground |
W-B - Body ground |
Skid control ECU (Brake booster with master cylinder assembly) ground 3 |
Always |
Below 1 Ω |
|
A42-27 (GND2) - Body ground |
W-B - Body ground |
Skid control ECU (Brake booster with master cylinder assembly) ground 2 |
Always |
Below 1 Ω |
|
A42-28 (GND) - Body ground |
LA - Body ground |
Skid control ECU (Brake booster with master cylinder assembly) ground |
Always |
Below 1 Ω |
|
A42-33 (STP) - Body ground |
G - Body ground |
Stop light switch assembly input |
Stop light switch assembly on → off (Brake pedal depressed → released) |
11 to 14 V → Below 1.5 V |
|
A42-36 (LBL) - Body ground |
R - Body ground |
Brake fluid level warning switch input |
Brake fluid level warning switch off → on |
1.84 to 2.16 kΩ → Below 1 Ω |
|
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