Toyota Corolla Cross: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
- Use the following procedure listed to troubleshoot the Dynamic Torque Control AWD System.
- *: Use the GTS.
PROCEDURE
|
1. |
VEHICLE BROUGHT TO WORKSHOP |
|
|
2. |
INSPECT AUXILIARY BATTERY VOLTAGE |
Standard voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step.
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|
3. |
CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* |
(a) Use the GTS to check if the CAN communication system is functioning normally.
Click here .gif)
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Result |
Proceed to |
|---|---|
|
CAN DTC is not output |
A |
|
CAN DTC is output |
B |
| B |  |
GO TO CAN COMMUNICATION SYSTEM |
|
|
4. |
CHECK DTC AND FREEZE FRAME DATA* |
(a) Check for DTCs.
Chassis > Four Wheel Drive > Trouble Codes(b) Check for freeze frame data.
HINT:
Record or print DTCs and freeze frame data if necessary.
(c) Clear the DTCs and freeze frame data.
Chassis > Four Wheel Drive > Clear DTCs(d) Recheck for DTCs.
Chassis > Four Wheel Drive > Trouble Codes|
Result |
Proceed to |
|---|---|
|
DTC does not reoccur |
A |
|
DTC does reoccur |
B |
| B | |
GO TO STEP 7 |
|
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5. |
PROBLEM SYMPTOMS TABLE |
Click here
|
Result |
Proceed to |
|---|---|
|
Fault not listed in problem symptoms table |
A |
|
Fault listed in problem symptoms table |
B |
| B | |
GO TO STEP 7 |
|
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6. |
OVERALL ANALYSIS AND TROUBLESHOOTING* |
(a) Terminals of ECU.
Click here
(b) Data List / Active Test.
Click here
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7. |
REPAIR OR REPLACE |
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8. |
CONFIRMATION TEST |
| NEXT | |
END |
READ NEXT:
Calibration
CALIBRATION
NOTICE:
Initial AWD functions such as acceleration are sometimes affected unless
backup memory is cleared.
When the yaw rate and acceleration sensor (airbag ECU assembly) is rep
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms. If
multiple suspected areas are listed, the potential causes of the symptoms are
listed in
Terminals Of Ecu
TERMINALS OF ECU
CHECK 4WD ECU ASSEMBLY
(a) Measure the voltage and resistance of the connector.
Terminal No. (Symbol)
Terminal Description
Condition
S
SEE MORE:
Installation
INSTALLATION
CAUTION / NOTICE / HINT
COMPONENTS (INSTALLATION)
Procedure
Part Name Code
1
VACUUM PUMP ASSEMBLY
29300
-
-
*1
NO. 1 VACUUM PUMP
Data List / Active Test
DATA LIST / ACTIVE TEST DATA LIST NOTICE:
In the following table, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
HINT: Using the GTS to read the Data List allows the values or states of
