Code No. C1295:
Transfer Position Error <4WD>
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- If there is any
problem in the CAN bus lines, an incorrect diagnosis code may be set. Prior to this diagnosis,
diagnose the CAN bus lines (Refer to GROUP 54C - CAN Bus Diagnostics Table
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- Whenever ECU is replaced, ensure that the CAN bus lines are normal.
- When the hydraulic unit (integrated with ASTC-ECU) is replaced, always carry out
the calibration of the steering wheel sensor and the G and yaw rate sensor (Refer to ).
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OPERATION
The transfer position switch output signal is sent to ASTC-ECU via the CAN bus lines from transfer-ECU.
DIAGNOSIS CODE SET CONDITION
This diagnosis code will be set when the transfer-ECU detects a fault in the transfer system.
PROBABLE CAUSES
Current trouble
- The CAN bus line is defective.
- Malfunction of transfer
- Malfunction of transfer position switch
- Malfunction of the transfer-ECU
- Malfunction of the hydraulic unit assembly (integrated with ASTC-ECU)
Past trouble
- Carry out diagnosis with particular emphasis on the back-up lamp
switch, connector(s) or wiring harness between the back-up lamp switch to the junction block
or ETACS-ECU. For diagnosis procedures, refer to How to treat past trouble (GROUP 00 - How
to Use Troubleshooting/Inspection Service Points ).
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STEP 1. M.U.T.-III CAN bus diagnosis.
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Use M.U.T.-III to diagnose the CAN bus lines.
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Q.
Is the check result normal?
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 Go to Step 3.
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 Repair the CAN bus lines (Refer to GROUP 54C - CAN Bus Diagnosis Table ).
On completion, go to Step 2.
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STEP 2. Diagnosis code recheck after resetting CAN bus lines.
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(1)Erase the diagnosis code.
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(2)Turn the ignition switch to the "ON" position.
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(3)Check if the diagnosis code is set.
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(4)Turn the ignition switch to the "LOCK" (OFF) position.
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Q.
Is diagnosis code No. C1295 set?
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Go to Step 3.
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Intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent
Malfunctions ).
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STEP 3. Use M.U.T.-III to confirm a diagnosis code of other systems.
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Check if the diagnosis code is set in the transfer-ECU (Refer to GROUP 22A - Diagnosis
Code Chart <M/T> or GROUP 23A - Diagnosis Code
Chart <A/T-ES4>, <A/T-SS4)>).
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Q.
Is the diagnosis code set?
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Troubleshoot the transfer-ECU diagnosis code. Then go to Step 5.
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Go to Step 4.
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STEP 4. Check whether the diagnosis code is set again.
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(1)Erase the diagnosis code.
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(2)Turn the ignition switch to the "ON" position.
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(3)Check if the diagnosis code is set.
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(4)Turn the ignition switch to the "LOCK" (OFF) position.
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Q.
Is diagnosis code No. C1295 set?
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Replace the hydraulic unit assembly (integrated with ASTC-ECU) (Refer to ).
Then go to Step 5.
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Intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent
Malfunctions ).
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STEP 5. Check whether the diagnosis code is set again.
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(1)Erase the diagnosis code.
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(2)Turn the ignition switch to the "ON" position.
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(3)Check if the diagnosis code is set.
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(4)Turn the ignition switch to the "LOCK" (OFF) position.
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Q.
Is diagnosis code No. C1295 set?
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Return to Step 1.
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The procedure is complete.
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