CAUTION / NOTICE / HINT
HINT:
*: Use the Techstream.
PROCEDURE
1. |
VEHICLE BROUGHT TO WORKSHOP |
|
2. |
CUSTOMER PROBLEM ANALYSIS |
(a) Confirm problem symptoms (See page ).
|
3. |
INSPECT BATTERY VOLTAGE* |
(a) Measure the voltage of the battery.
Standard voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.
|
4. |
CHECK DTC* |
(a) Check and record DTCs.
|
5. |
CLEAR DTC* |
(a) Clear the DTCs.
|
6. |
PROBLEM SYMPTOM CONFIRMATION |
Result |
Proceed to |
---|---|
Symptom does not occur |
A |
Symptom occurs |
B |
B | ![]() |
GO TO STEP 8 |
|
7. |
SYMPTOM SIMULATION |
(a) Perform symptom simulation (See page ).
|
8. |
CHECK CAN COMMUNICATION SYSTEM* |
(a) Check for DTCs (See page ).
Result |
Proceed to |
---|---|
CAN communication system DTC is not output |
A |
CAN communication system DTC is output |
B |
HINT:
B | ![]() |
PROCEED TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) |
|
9. |
CHECK FOR DTC* |
(a) Check for DTCs (See page ).
HINT:
Refer to Diagnostic Trouble Code Chart when any DTCs are output (See page
).
Result |
Proceed to |
---|---|
DTC is not output |
A |
DTC is output |
B |
B | ![]() |
GO TO STEP 11 |
|
10. |
PROBLEM SYMPTOMS TABLE |
(a) Refer to Problem Symptoms Table (See page
).
|
11. |
CIRCUIT INSPECTION |
|
12. |
IDENTIFICATION OF PROBLEM |
|
13. |
REPAIR OR REPLACE |
|
14. |
CONFIRMATION TEST |
NEXT | ![]() |
END |
Speed Signal Circuit
DESCRIPTION
The vehicle speed signal consists of pulses sent to the side auto step controller
ECU assembly from the main body ECU (multiplex network body ECU).
WIRING DIAGRAM
PROCEDURE
1.
INSPECT MAIN BODY ECU (MULTIPLEX NETWORK ...
System Diagram
SYSTEM DIAGRAM
Communication Table
Transmitting ECU
Receiving ECU
Signal
Communication Method
Multiplex network master switch assembly
Front power window regulator motor ...