44Code No. C1915:
Transmitter OFF mode, Tyre1
Code No. C1925: Transmitter OFF mode, Tyre2
Code
No. C1935: Transmitter OFF mode, Tyre3
Code No. C1945: Transmitter OFF mode, Tyre4
Code
No. C1955: Transmitter OFF mode, Tyre5
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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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DIAGNOSTIC FUNCTION
When the TPMS transmitter(s) is in the OFF MODE, this code is set.
PROBABLE CAUSES
The most likely causes for this diagnosis code to be set are:
- OFF mode cancellation not performed
- Damaged wiring harness and connector
- Malfunction of TPMS transmitter
- Malfunction of ETACS-ECU
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STEP 1. M.U.T.-III CAN bus diagnosis.
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Use the 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 Diagnostics 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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Recheck if diagnosis code Nos. C1915, C1925, C1935, C1945 or C1955 is set.
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(1)Turn the ignition switch from the "LOCK" (OFF) to "ON" position.
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(2)Check if the diagnosis code is set.
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(3)Turn the ignition switch to the "LOCK" (OFF) position.
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Q.
Is diagnosis code Nos. C1915, C1925, C1935, C1945 or C1955 set?
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Go to Step 3.
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The procedure is complete.
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STEP 3. Check whether the diagnosis code is set again.
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Recheck if the diagnosis code is set.
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(1)Drive the vehicle for 5 minutes.
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(2)Turn the ignition switch from the "LOCK" (OFF) to "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.
Are the all diagnosis code Nos. C1915, C1925, C1935, C1945 and C1955 set?
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Replace the TPMS transmitter (Refer to ), of all the
4 wheels, and register ID codes (Refer to ). Then go to Step
4.
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Register the ID codes (Refer to ). Then go to Step
4.
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STEP 4. Check whether the diagnosis code is set again.
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Recheck if the diagnosis code is set.
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(1)Turn the ignition switch from the "LOCK" (OFF) to "ON" position.
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(2)Check if the diagnosis code is set.
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(3)Turn the ignition switch to the "LOCK" (OFF) position.
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Q.
Is diagnosis code Nos. C1915, C1925, C1935, C1945 or C1955 set?
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Replace the ETACS-ECU (Refer to GROUP 54A - ETACS-ECU), and register
the ID codes (Refer to ). Then start over at Step 1.
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The procedure is complete.
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