Toyota Corolla Cross: Cancellation of 4WD Control (C1299)
DESCRIPTION
While driving, if the heat generated by the transmission coupling assembly exceeds a certain amount or if the estimated oil temperature of the transfer exceeds a certain amount, the 4WD ECU assembly cancels 4WD control and stores DTC C1299.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C1299 |
Cancellation of 4WD Control |
When one of the following conditions is met:
|
|
PROCEDURE
|
1. |
CHECK VEHICLE USAGE |
(a) Check that there has been no unintended vehicle usage.
OK:
There is no evidence of rough use (the vehicle has not been driven on damaged or snowy roads, etc. for a long time).
| NG | .gif) |
CHECK FOR INTERMITTENT PROBLEMS |
|
.gif)
|
2. |
CHECK FOR DTC (ELECTRONICALLY CONTROLLED BRAKE SYSTEM) |
(a) Check if the electronically controlled brake system DTC is output.
Chassis > Brake/EPB > Trouble Codes(b) Read the DTCs using the GTS.
|
Result |
Proceed to |
|---|---|
|
Electronically controlled brake system DTCs are not output |
A |
|
Electronically controlled brake system DTCs are output |
B |
| B | |
GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM |
|
|
3. |
CHECK RELATED PART |
(a) Check the condition, size and tire pressure of the front and rear tires.
Click here .gif)
(b) Inspect the suspension and ball joint, etc. for rattle.
(c) Inspect the drive shaft and propeller shaft rotation condition.
| NG | |
REPAIR OR REPLACE MALFUNCTIONING PARTS |
|
|
4. |
RECONFIRM DTC |
(a) Clear the DTC.
Chassis > Four Wheel Drive > Clear DTCs(b) Start the engine.
(c) Drive the vehicle at a speed of 20 km/h (12 mph) or more and check that the same DTC is output.
Chassis > Four Wheel Drive > Trouble Codes|
Result |
Proceed to |
|---|---|
|
DTC is output |
A |
|
DTC is not output |
B |
| B | |
CHECK FOR INTERMITTENT PROBLEMS |
|
|
5. |
REPLACE 4WD ECU ASSEMBLY |
Click here
|
|
6. |
RECONFIRM DTC |
(a) Clear the DTC.
Chassis > Four Wheel Drive > Clear DTCs(b) Start the engine.
(c) Drive the vehicle at a speed of 20 km/h (12 mph) or more and check that the same DTC is output.
Chassis > Four Wheel Drive > Trouble Codes|
Result |
Proceed to |
|---|---|
|
DTC is output |
A |
|
DTC is not output |
B |
| A | |
REPLACE TRANSMISSION COUPLING ASSEMBLY |
| B | |
END |
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DESCRIPTION
The 4WD ECU assembly outputs DTC C1337 if a difference in tire size is detected.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
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DESCRIPTION
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ECU assembly stores a DTC.
When a malfunction occurs in communication with the ECM, skid control ECU (br
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DESCRIPTION
The 4WD ECU assembly is connected to the combination meter assembly via the CAN
communication system.
If the 4WD ECU assembly stores any DTCs which are related to the dynamic torque
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Refrigerant Gas Fluid Leak or Seal Failure (P05347A)
DESCRIPTION This DTC is stored if the amount of refrigerant in the air conditioning system is insufficient.
The air conditioning amplifier assembly receives the ambient temperature signal, refrigerant pressure signal, etc. from various sensors.
Based on these signals, the air conditioning amplif
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 order of probability in the "Suspected Area" column of the
table. Check each symptom
