Code No. C1900:
Tyre ID code No. registration
| caution |
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  ).
|
DIAGNOSTIC FUNCTION
When the ID codes of the TPMS transmitter is not stored in ETACS-ECU, and/or
when ETACS-ECU is replaced with a new one, this code is set. If the ID registration mode is
terminated forcibly or timeout after 1 or more TPMS transmitters are registered in the ID registration
mode, the ID codes in the ETACS-ECU is erased, and this diagnosis code is set.
PROBABLE CAUSES
The most likely causes for this diagnosis code to be set is:
- Damaged wiring harness and connector
- Malfunction of ETACS-ECU
- ID code registration failed
|
|
STEP 1. M.U.T.-III CAN bus diagnosis.
|
|
|
Use the M.U.T.-III to diagnose the CAN bus lines.
|
|
|
Q.
Is the check result normal?
|
|
|
 Go to Step 3.
|
|
|
|
|
|
 Repair the CAN bus lines (Refer to GROUP 54C - CAN Bus Diagnostics Table ).
On completion, go to Step 2.
|
|
|
|
|
|
STEP 2. Check whether the diagnosis code is set again.
|
|
|
Recheck if the diagnosis code is set.
|
|
|
(1)Turn the ignition switch from the "LOCK" (OFF) to "ON" position.
|
|
|
(2)Check if the diagnosis code is set.
|
|
|
(3)Turn the ignition switch to the "LOCK" (OFF) position.
|
|
|
Q.
Is diagnosis code No. C1900 set?
|
|
|
Register the ID codes (Refer to ). Then go to Step
3.
|
|
|
|
|
|
The procedure is complete.
|
|
|
|
|
|
STEP 3. Check whether the diagnosis code is set again.
|
|
|
Recheck if the diagnosis code is set.
|
|
|
(1)Turn the ignition switch from the "LOCK" (OFF) to "ON" position.
|
|
|
(2)Check if the diagnosis code is set.
|
|
|
(3)Turn the ignition switch to the "LOCK" (OFF) position.
|
|
|
Q.
Is diagnosis code No. C1900 set?
|
|
|
Replace the ETACS-ECU (Refer to GROUP 54A - ETACS-ECU), and register
the ID codes (Refer to ). Then start over at Step 4.
|
|
|
|
|
|
The procedure is complete.
|
|
|
|
|
|
STEP 4. Check whether the diagnosis code is set again.
|
|
|
Recheck if the diagnosis code is set.
|
|
|
(1)Turn the ignition switch from the "LOCK" (OFF) to "ON" position.
|
|
|
(2)Check if the diagnosis code is set.
|
|
|
(3)Turn the ignition switch to the "LOCK" (OFF) position.
|
|
|
Q.
Is diagnosis code No. C1900 set?
|
|
|
Go to Step 1.
|
|
|
|
|
|
The procedure is complete.
|
|
|
|