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7D1-46 TRANSFER CONTROL SYSTEM Diagnosis Before determining a trouble (Non-trouble mode) 1. When shifting from 2H to 4H: 1-1-1 When the flashing frequency of the 4WD indicator is changed from 2Hz to 4Hz (Shift on the fly) If the load is too large to shift the gears synchronously, the operation is repeated up to 3 times. If the shifting synchronization). • High speed (since the difference of relative revolutions of gears to be shifted synchronously is too large, required work load per unit time becomes larger). Step 1-1-1: Stop the vehicle or decrease the speed and operate as required again.
1-1-2 When the flashing frequency of the 4WD indicator is changed from 2Hz to 4Hz (Rigid and free wheel Hub) / Block out of meshing spline in transfer case. Step 1-1-2: Run the vehicle forward and backward several meters and operate as required again.
1-2 When the flashing of 4WD indicator at 2Hz continues more than 11.5 seconds (repetition of 3 times of above No.1 is counted) (Shift on the fly) If there is difference of revolutions and phases between the front wheel and the axle, connecting the front ∗ , the indicator flashes at a frequency of 2Hz. In the above case, the indicator continues flashing at a frequency of 2Hz until the Step 1-2: While the vehicle is running, check it is safe around the vehicle and then accelerate or decelerate the vehicle while going straight. When the vehicle is at a stop, run the vehicle forward and backward several meters.
2. When shifting from 4H to 2H 2-1 When 4WD indicator continues flashing at 2Hz When shifting from 4H to 2H, the 4WD indicator continues flashing at 2Hz until separation in the transfer and the separation of the front wheel axle are completed ∗ . When torsional torque is accumulated in the drive system, separation in the transfer and separation of the front axle ∗ is difficult. In such a case, they can be separated by removing the torsional torque of the drive system. Step 2-1: While the vehicle is running, check it is safe around the vehicle and then accelerate or decelerate the vehicle while going straight. When the vehicle is in stop, run the vehicle several meters forward and backward. ∗: Shift on the fly only.
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