Toyota Corolla Cross: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
- Use the following procedure to troubleshoot the tire pressure warning system.
- Make sure that the wireless door lock control system has exited diagnostic mode before performing the following procedure.
- *: Use the GTS.
PROCEDURE
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1. |
VEHICLE BROUGHT TO WORKSHOP |
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2. |
CUSTOMER PROBLEM ANALYSIS |
(a) Interview the customer to confirm the problem.
HINT:
It is important to collect as much specific information as possible from the customer to allow for a quick repair.
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3. |
ADJUST TIRE PRESSURE* |
(a) Using the GTS, display the Data List.
(b) Set the pressure of each tire to the specified value.
NOTICE:
Refer to the link as the procedure for adjusting the tire pressures differs depending on the temperature of the tires.
Click here .gif)
(c) Display "ID Tire Inflation Pressure" in the Data List and check that the tire pressure values match the adjusted pressure amount.
HINT:
It may take a few minutes until the values are displayed.
(d) Perform initialization.
Click here
HINT:
- The warning threshold value changes depending on the driving conditions during initialization. As a result, the tire pressure warning light may not turn off even if the tire pressure is adjusted to the specified pressure.
- The tire pressure warning system illuminates the tire pressure warning light
to warn the driver when any of the following condition is met:
- Due to the operation of the tire pressure warning reset switch (steering pad switch assembly), the tire pressure drops to approximately 75% or less of the tire pressure set during system initialization.
- The tire pressure drastically decreases (approximately 25 kPa (0.25
kgf/cm2, 3.6 psi) or more within several minutes) to approximately 75% or
less of the tire pressure* when the tires are warmed.
*: If initialization is performed and the vehicle is driven for a certain period of time, the tire pressure set during system initialization is adjusted and set to the tire pressure when the tires are warmed from the driving conditions.
NOTICE:
If the tire pressure is decreased approximately 25 kPa (0.25 kgf/cm2, 3.6 psi) or more in order to adjust the tire pressure, even if the adjusted tire pressure is 75% or more than the tire pressure set during system initialization, the tire pressure warning light may illuminate if the tire pressure drops below 75% of the tire pressure set when the tires are warmed. In this case, perform initialization again.
HINT:
The tire pressure warning pressure (pressure at which the tire pressure warning light is illuminated) cannot be set to approximately 75% or less of a specified tire pressure value.
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Result |
Proceed to |
|---|---|
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Tire pressure warning light remains on |
A |
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Tire pressure warning light goes off |
B |
| B | .gif) |
GO TO STEP 11 |
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4. |
CHECK ECU CONNECTED TO CAN BUS* |
(a) Check the ECUs connected to the CAN bus.
- for Gasoline Model: Click here
- for HEV Model: Click here
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Result |
Proceed to |
|---|---|
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No malfunction appears |
A |
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Malfunction appears |
B |
| B | |
GO TO CAN COMMUNICATION SYSTEM
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|
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5. |
CHECK FOR DTC (CAN COMMUNICATION SYSTEM)* |
(a) Check for DTCs.
- for Gasoline Model: Click here
- for HEV Model: Click here
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Result |
Proceed to |
|---|---|
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CAN system DTCs are not output |
A |
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CAN system DTCs are output |
B |
| B | |
GO TO CAN COMMUNICATION SYSTEM
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|
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6. |
CHECK DTC AND FREEZE FRAME DATA* |
(a) Check and record DTCs and Freeze Frame Data.
Click here
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Result |
Proceed to |
|---|---|
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DTCs are output |
A |
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DTCs are not output |
B |
| B | |
GO TO STEP 8 |
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7. |
DTC CHART |
(a) Refer to Diagnostic Trouble Code Chart.
| NEXT | |
GO TO STEP 10 |
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8. |
PROBLEM SYMPTOMS TABLE |
(a) Refer to Problem Symptoms Table.
Click here
|
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9. |
CIRCUIT INSPECTION* |
(a) Refer to Electronic Circuit Inspection Procedure.
Click here
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10. |
REPAIR OR REPLACE |
(a) Repair or replace parts based on the diagnosis result.
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11. |
CONFIRMATION TEST* |
(a) Check the Data List to confirm that the tire inflation pressure has been received.
Click here
(b) Perform initialization.
Click here
(c) Confirm that the initialization has been completed.
| NEXT | |
END |
READ NEXT:
Operation Check
OPERATION CHECK
CHECK TIRE PRESSURE WARNING SYSTEM FUNCTION
(a) Using the Data List, check that the current tire pressure is normal.
Click here
(1) Slowly reduce the tire pressure of the front
Registration
REGISTRATION
PROCEDURE
1. BEFORE REGISTRATION
NOTICE:
The transmitter ID is written on the tire pressure warning valve and transmitter.
It is not possible to read the transmitter ID after in
Initialization
INITIALIZATION
NOTICE:
Initialization can be confirmed through the tire pressure warning light.
If the ignition switch is turned off during initialization, the tire pressure
warning ECU a
SEE MORE:
Parts Location
PARTS LOCATION ILLUSTRATION
*1 SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)
*2 NO. 1 ENGINE ROOM RELAY BLOCK
- IGP-MAIN RELAY
*3 PARK/NEUTRAL POSITION SWITCH
*4 STARTER ASSEMBLY
*5 ECM
- - ILLUSTRATION
*1 NO. 1 INDOOR ELECTRICA
Lost Communication With ECM/PCM "A" Missing Message (U010087,...,U113387)
DESCRIPTION The combination meter assembly communicates with each ECU via CAN communication.
DTC No. Detection Item
DTC Detection Condition Trouble Area
U010087 Lost Communication With ECM/PCM "A" Missing Message
Diagnosis Condition:
The ignition switch is ON
