Toyota 4Runner: System Diagram
SYSTEM DIAGRAM
|
Terminal No. (Symbol) |
Wire Harness Side |
|
|---|---|---|
|
F14 |
1 (CANH) |
CAN communication line (V Bus) |
|
2 (CANL) |
CAN communication line (V Bus) |
|
|
3 (MSSL) |
Steering Pad Switch Assembly |
|
|
4 |
- |
|
|
5 |
- |
|
|
6 (LINT) |
Drive monitor switch*1 |
|
|
7 (RR) |
Clearance warning ECU assembly*2 |
|
|
8 (S) |
Engine oil pressure switch assembly |
|
|
9 (TIRE) |
Tire pressure warning ECU |
|
|
10 (IL2-) |
Each part that uses the illumination signal |
|
|
11 (ILL-) |
Each part that uses the illumination signal |
|
|
12 (RL) |
Clearance warning ECU assembly*2 |
|
|
13 (MGND) |
Ground |
|
|
14 (SW) |
Brake master cylinder sub-assembly (Brake fluid level warning switch)*7 |
|
|
15 (B) |
ECU-B fuse |
|
|
16 |
- |
|
|
17 (IG+) |
GAUGE fuse |
|
|
18 (BK) |
Clearance warning ECU assembly*2 |
|
|
19 (E3) |
Fuel sender gauge assembly |
|
|
20 (E1) |
Ground |
|
|
21 (STP+) |
Automatic running boards warning light signal*3 |
|
|
22 (STPA) |
Ground*3 |
|
|
23 (MSCH) |
CAN communication line (MS Bus)*4 |
|
|
24 (MSCL) |
CAN communication line (MS Bus)*4 |
|
|
25 (B) |
Turn signal flasher assembly |
|
|
26 (CHG-) |
Generator assembly |
|
|
27 (WLVL) |
Level warning switch assembly*5 |
|
|
28 (+S) |
Speed signal for other systems (Output) |
|
|
29 (SI) |
Speed signal for other systems (Input) |
|
|
30 (CHK) |
ECM |
|
|
31 (OP) |
Clearance warning ECU assembly*2 |
|
|
32 (FL) |
Clearance warning ECU assembly*2 |
|
|
33 (B) |
Turn signal flasher assembly |
|
|
34 |
- |
|
|
35 (FR) |
Clearance warning ECU assembly*2 |
|
|
36 (TC) |
Light control rheostat*6 |
|
|
37 (RHIG) |
Light control rheostat*6 |
|
|
38 (TR) |
Light control rheostat*6 |
|
|
39 (E2) |
Light control rheostat*6 |
|
|
40 (L) |
Fuel sender gauge assembly |
|
- *1: w/ CRAWL Control
- *2: w/ Intuitive Parking Assist System
- *3: w/Automatic Running Board System
- *4: w/ Seat Position Memory
- *5: w/ Level Warning Switch Assembly
- *6: w/ Light Control Rheostat
- *7: for 2WD
1. INPUT AND OUTPUT SIGNALS OF COMBINATION METER ASSEMBLY
(a) Meter or Gauge
|
Meter or Gauge |
Communication Signal |
Sender |
Communication Line |
Receiver |
|---|---|---|---|---|
|
Speedometer |
Vehicle speed |
Skid control ECU (Brake Actuator Assembly) *3 Master cylinder solenoid (Skid control ECU *4) |
CAN |
Combination meter assembly |
|
Tachometer |
Engine speed |
ECM |
CAN |
Combination meter assembly |
|
Fuel receiver gauge |
Fuel level |
Fuel sender gauge assembly |
CAN |
Combination meter assembly |
|
Fuel injection |
ECM |
CAN |
Combination meter assembly |
|
|
Engine coolant temperature receiver gauge |
Engine coolant temperature |
ECM |
CAN |
Combination meter assembly |
(b) Warning or Indicator
|
Warning or Indicator |
Communication Signal |
Sender |
Communication Line |
Receiver |
|---|---|---|---|---|
|
Driver and passenger side seat belt warning light |
Driver side seat belt buckle switch |
Main body ECU (Multiplex network body ECU) |
CAN |
Combination meter assembly |
|
Passenger side seat belt buckle switch |
Airbag sensor assembly |
CAN |
Combination meter assembly |
|
|
Open door warning light |
Each door courtesy switch |
Main body ECU (Multiplex network body ECU) |
CAN |
Combination meter assembly |
|
High beam indicator light |
High beam indicator light |
Main body ECU (Multiplex network body ECU) |
CAN |
Combination meter assembly |
|
Cruise indicator light |
Cruise main indicator |
ECM |
CAN |
Combination meter assembly |
|
Set indicator light |
Set indicator |
ECM |
CAN |
Combination meter assembly |
|
Oil pressure warning light |
Oil pressure warning |
Engine oil pressure switch assembly |
Direct line |
Combination meter assembly |
|
SRS warning light |
SRS warning light |
Airbag sensor assembly |
CAN |
Combination meter assembly |
|
Tire pressure warning light |
Tire pressure warning |
Tire pressure warning ECU |
Direct line |
Combination meter assembly |
|
MIL (Check engine warning light) |
MIL (Check engine warning light) |
ECM |
Direct line |
Combination meter assembly |
|
Charge warning light |
Charge warning light |
Generator assembly |
Direct line |
Combination meter assembly |
|
Head indicator light*1 |
Head indicator light |
Main body ECU (Multiplex network body ECU) |
CAN |
Combination meter assembly |
|
Tail indicator light*2 |
Taillight |
Main body ECU (Multiplex network body ECU) |
CAN |
Combination meter assembly |
|
Slip indicator light |
Slip indicator |
Skid control ECU (Brake Actuator Assembly) *3 Master cylinder solenoid (Skid control ECU *4) |
CAN |
Combination meter assembly |
|
VSC OFF indicator light |
VSC OFF indicator |
Skid control ECU (Brake Actuator Assembly) *3 Master cylinder solenoid (Skid control ECU *4) |
CAN |
Combination meter assembly |
|
AUTO LSD indicator light*3 |
AUTO LSD indicator |
Skid control ECU (Brake Actuator Assembly) *3 Master cylinder solenoid (Skid control ECU *4) |
CAN |
Combination meter assembly |
|
A-TRAC indicator light*4 |
4WD indicator |
Four wheel drive control ECU |
CAN |
Combination meter assembly |
|
CRAWL indicator light*5 |
CRAWL indicator |
Skid control ECU (Brake Actuator Assembly) *3 Master cylinder solenoid (Skid control ECU *4) |
CAN |
Combination meter assembly |
|
Downhill assist control indicator light*6 |
4WD indicator |
Four wheel drive control ECU |
CAN |
Combination meter assembly |
|
TRAC OFF indicator light |
TRAC OFF indicator |
Skid control ECU (Brake Actuator Assembly) *3 Master cylinder solenoid (Skid control ECU *4) |
CAN |
Combination meter assembly |
|
ABS warning light |
ABS warning light |
Skid control ECU (Brake Actuator Assembly) *3 Master cylinder solenoid (Skid control ECU *4) |
CAN |
Combination meter assembly |
|
Brake warning light |
Brake warning light |
Skid control ECU (Brake Actuator Assembly) *3 Master cylinder solenoid (Skid control ECU *4) |
CAN |
Combination meter assembly |
|
Brake fluid level warning switch |
Brake master cylinder sub-assembly (Brake fluid level warning switch)*3 |
Direct line |
||
|
Skid control ECU (Brake Actuator Assembly) *3 Master cylinder solenoid (Skid control ECU *4) |
CAN |
|||
|
Parking brake switch |
Main body ECU (Multiplex network body ECU) |
CAN |
||
|
4WD indicator light*7,*8 |
4WD indicator |
Four wheel drive control ECU |
CAN |
Combination meter assembly |
|
4LO indicator light*4 |
4LO indicator |
Four wheel drive control ECU |
CAN |
Combination meter assembly |
|
Center differential lock indicator light*7, *9 |
4WD indicator |
Four wheel drive control ECU |
CAN |
Combination meter assembly |
|
A/T P indicator light*7 |
A/T P indicator |
Four wheel drive control ECU |
CAN |
Combination meter assembly |
|
Rear differential lock indicator light*10 |
4WD indicator |
Four wheel drive control ECU |
CAN |
Combination meter assembly |
|
Front fog indicator light |
Front fog indicator |
Main body ECU (Multiplex network body ECU) |
CAN |
Combination meter assembly |
|
Fuel level warning light |
Fuel level |
Fuel sender gauge assembly |
Direct line |
Combination meter assembly |
|
Turn indicator light |
Turn indicator light |
Turn signal flasher assembly |
Direct line |
Combination meter assembly |
|
Eco driving indicator light |
Ecology lamp indicator |
ECM |
CAN |
Combination meter assembly |
|
KDSS indicator light*11 |
KDSS indicator |
Stabilizer control ECU |
CAN |
Combination meter assembly |
|
Smart key indicator light*12 |
Smart key indicator |
Certification ECU (Smart key ECU assembly) |
CAN |
Combination meter assembly |
|
Multi terrain select indicator light*5 |
Multi terrain select indicator |
Skid control ECU (Brake Actuator Assembly) *3 Master cylinder solenoid (Skid control ECU *4) |
CAN |
Combination meter assembly |
|
PPS warning light |
PPS warning light |
Power steering ECU assembly |
CAN |
Combination meter assembly |
|
Master warning light |
warning |
Each ECU |
CAN |
Combination meter assembly |
|
Automatic Running Boards warning light*13 |
Automatic Running Boards warning |
Side Auto Step Controller ECU Assembly |
Direct line |
Combination meter assembly |
|
Shift position indicator |
Shift position |
ECM |
CAN |
Combination meter assembly |
- *1: for U.S.A.
- *2: except U.S.A.
- *3: for 2WD
- *4: for 4WD
- *5: w/ CRAWL Control
- *6: w/ Downhill Assist Control System
- *7: for VF2A Transfer
- *8: for VF2BM Transfer
- *9: for VF4BM Transfer
- *10: w/ Rear Differential Lock
- *11: w/ Kinetic Dynamic Suspension System
- *12: w/ Smart Key System
- *13: w/ Automatic Running Board System
(c) Multi-information Display
|
Multi-information Display |
Communication Signal |
Sender |
Communication Line |
Receiver |
|---|---|---|---|---|
|
ODO/TRIP meter |
ODO/TRIP change |
ODO/TRIP switch |
Direct line |
Combination meter assembly |
|
ODO signal |
Skid control ECU (Brake Actuator Assembly) *8 Master cylinder solenoid (Skid control ECU *9) |
CAN |
||
|
Eco driving indicator zone display |
Eco-zone indicator level |
ECM |
CAN |
Combination meter assembly |
|
Road surface freezing |
Outside temperature |
Air conditioning amplifier assembly |
CAN |
Combination meter assembly |
|
Direction*1 |
Direction |
Navigation receiver assembly |
CAN |
Combination meter assembly |
|
Outside Temperature |
Outside temperature |
Air conditioning amplifier assembly |
CAN |
Combination meter assembly |
|
Average fuel consumption |
Engine speed |
ECM |
CAN |
Combination meter assembly |
|
Fuel injection |
||||
|
Vehicle speed |
Skid control ECU (Brake Actuator Assembly) *8 Master cylinder solenoid (Skid control ECU *9) |
CAN |
||
|
ODO |
||||
|
Current Fuel Consumption |
Engine speed |
ECM |
CAN |
Combination meter assembly |
|
Fuel injection |
||||
|
Vehicle speed |
Skid control ECU (Brake Actuator Assembly) *8 Master cylinder solenoid (Skid control ECU *9) |
CAN |
||
|
Total driving distance |
||||
|
Cruising Range |
Engine speed |
ECM |
CAN |
Combination meter assembly |
|
Fuel injection |
||||
|
Vehicle speed |
Skid control ECU (Brake Actuator Assembly) *8 Master cylinder solenoid (Skid control ECU *9) |
CAN |
||
|
Total driving distance |
||||
|
Fuel level |
Fuel sender gauge assembly |
Direct line |
||
|
Elapsed Time |
Engine speed |
ECM |
CAN |
Combination meter assembly |
|
Steering pad switch assembly (DISP switch) |
Steering pad switch assembly (DISP switch) |
Direct line |
||
|
Vehicle Speed |
Engine speed |
ECM |
CAN |
Combination meter assembly |
|
Vehicle speed |
Skid control ECU (Brake Actuator Assembly) *8 Master cylinder solenoid (Skid control ECU *9) |
CAN |
||
|
Steering Angle |
Steering angle |
Spiral cable sub-assembly (Steering angle sensor) |
CAN |
- |
|
Setting |
Customized setting |
- |
- |
Combination meter assembly |
|
Open door message |
Each door courtesy switch |
Main body ECU (Multiplex network body ECU) |
CAN |
Combination meter assembly |
|
Clearance sonar system message*2 |
Clearance sonar system message |
Clearance warning ECU assembly |
Direct line |
Combination meter assembly |
|
Smart Key system message*3 |
Smart Key system message |
Certification ECU (Smart key ECU assembly) |
CAN |
Combination meter assembly |
|
Release parking brake message |
Parking brake switch |
Main body ECU (Multiplex network body ECU) |
CAN |
Combination meter assembly |
|
Vehicle speed |
Skid control ECU (Brake Actuator Assembly) *8 Master cylinder solenoid (Skid control ECU *9) |
CAN |
||
|
A/T fluid temperature high message |
A/T fluid temperature high message |
ECM |
CAN |
Combination meter assembly |
|
Sliding roof message*4 |
Sliding roof message |
Main body ECU (Multiplex network body ECU) |
CAN |
Combination meter assembly |
|
Washer level message*5 |
Washer level message |
Level warning switch assembly |
Direct line |
Combination meter assembly |
|
Maintenance required message*6 |
Oil maintenance required message |
Combination meter assembly |
- |
Combination meter assembly |
|
Smart door unlock mode setting display*3 |
Smart door unlock mode setting |
Certification ECU (Smart key ECU assembly) |
CAN |
Combination meter assembly |
|
Multi-information display change |
Multi-information display change |
Steering pad switch assembly (DISP switch) |
Direct line |
Combination meter assembly |
|
Multi terrain select display*7 |
Multi terrain select |
Drive monitor switch |
LIN |
Combination meter assembly |
- *1: for Navigation Receiver Type
- *2: w/ Intuitive Parking Assist System
- *3: w/ Smart Key System
- *4: w/ Sliding Roof System
- *5: w/ Level Warning Switch Assembly
- *6: for U.S.A.
- *7: w/ CRAWL Control
- *8: for 2WD
- *9: for 4WD
(d) Buzzer
|
Buzzer |
Communication Signal |
Sender |
Communication Line |
Receiver |
|---|---|---|---|---|
|
Key reminder buzzer*1 |
Driver side door courtesy switch |
Main body ECU (Multiplex network body ECU) |
CAN |
Combination meter assembly |
|
Ignition switch |
||||
|
Shift down reject buzzer |
Shift down reject buzzer |
ECM |
CAN |
Combination meter assembly |
|
Seat belt warning buzzer |
Driver side seat belt buckle switch |
Main body ECU (Multiplex network body ECU) |
CAN |
Combination meter assembly |
|
Front passenger side door courtesy switch |
||||
|
Driver side door courtesy switch |
||||
|
Parking brake switch |
||||
|
Front passenger side seat belt buckle switch |
Airbag sensor assembly |
CAN |
||
|
Shift position R |
ECM |
CAN |
||
|
Shift position P |
||||
|
Vehicle speed |
Skid control ECU (Brake Actuator Assembly) *7 Master cylinder solenoid (Skid control ECU *8) |
CAN |
||
|
Driving with any door opened warning buzzer |
Vehicle speed |
Skid control ECU (Brake Actuator Assembly) *7 Master cylinder solenoid (Skid control ECU *8) |
CAN |
Combination meter assembly |
|
Each door courtesy switch |
Main body ECU (Multiplex network body ECU) |
|||
|
Smart key warning buzzer*2 |
Ignition switch |
Main body ECU (Multiplex network body ECU) |
CAN |
Combination meter assembly |
|
Engine immobiliser certification buzzer |
Certification complete |
Certification ECU (Smart key ECU assembly) |
CAN |
Combination meter assembly |
|
Driving with parking brake unreleased warning buzzer |
Parking brake switch |
Main body ECU (Multiplex network body ECU) |
CAN |
Combination meter assembly |
|
Vehicle speed |
Skid control ECU (Brake Actuator Assembly) *7 Master cylinder solenoid (Skid control ECU *8) |
CAN |
||
|
Sliding roof open warning*3 |
Sliding roof open warning buzzer request |
Main body ECU (Multiplex network body ECU) |
CAN |
Combination meter assembly |
|
4WD buzzer*4 |
4WD buzzer request |
Four wheel drive control ECU |
CAN |
Combination meter assembly |
|
Downhill assist control buzzer*5 |
Meter buzzer request |
Skid control ECU (Brake Actuator Assembly) *7 Master cylinder solenoid (Skid control ECU *8) |
CAN |
Combination meter assembly |
|
Hill-start assist control buzzer |
Meter buzzer request |
Skid control ECU (Brake Actuator Assembly) *7 Master cylinder solenoid (Skid control ECU *8) |
CAN |
Combination meter assembly |
|
Master warning buzzer |
Each system warning |
Skid control ECU (Brake Actuator Assembly) *7 Master cylinder solenoid (Skid control ECU *8) |
CAN |
Combination meter assembly |
|
Main body ECU (Multiplex network body ECU) |
||||
|
ECM |
||||
|
Certification ECU (Smart key ECU assembly)*2 |
||||
|
Drive monitor switch*6 |
LIN |
- *1: w/o Smart Key System
- *2: w/ Smart Key System
- *3: w/ Sliding Roof System
- *4: for 4WD
- *5: w/ Downhill Assist Control System
- *6: w/ CRAWL Control
- *7: for 2WD
- *8: for 4WD
(e) Others
|
Signal |
Communication Signal |
Sender |
Communication Line |
Receiver |
|---|---|---|---|---|
|
Vehicle speed signal |
Vehicle speed |
Skid control ECU (Brake Actuator Assembly) *7 Master cylinder solenoid (Skid control ECU *8) |
Direct Line |
Combination meter assembly |
|
Vehicle speed |
Combination meter assembly |
Direct Line |
ECM |
|
|
Tire pressure warning ECU |
||||
|
Clearance warning ECU assembly*1 |
||||
|
Navigation receiver assembly*2 |
||||
|
Radio and display receiver assembly*3 |
||||
|
Voltage inverter assembly*4 |
||||
|
Power management control ECU*4 |
||||
|
Telematics transceiver*5 |
||||
|
Stereo Component Amplifier Assembly*6 |
- *1: w/ Intuitive Parking Assist System
- *2: for Navigation Receiver Type
- *3: for Radio and Display Type
- *4: w/ Smart Key System
- *5: w/ Safety Connect System
- *6: for 9 Speakers Type
- *7: for 2WD
- *8: for 4WD
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use these procedures to troubleshoot the meter/gauge system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
...
Customize Parameters
CUSTOMIZE PARAMETERS
1. METER/GAUGE SYSTEM
(a) Combination Meter
NOTICE:
Record the current settings before customizing.
When the customer requests a change in a function, first make s ...
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Data Signal Circuit between Navigation Receiver Assembly and Stereo Jack Adapter
DESCRIPTION
The No. 1 stereo jack adapter assembly sends the sound data signal or image data
signal from a USB device to the navigation receiver assembly via this circuit.
WIRING DIAGRAM
PROCEDURE
1.
CHECK HARNESS AND CONNECTOR ( ...
Removal
REMOVAL
PROCEDURE
1. REMOVE NO. 1 ENGINE UNDER COVER SUB-ASSEMBLY
2. REMOVE REAR ENGINE UNDER COVER ASSEMBLY
3. REMOVE FRONT FENDER APRON SEAL RH
4. REMOVE FRONT NO. 1 FENDER APRON TO FRAME SEAL RH
5. REMOVE NO. 1 OIL COOLER INLET HOSE AND NO ...
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