[Previous][Next]
DTC C1707: Implausible coding data
 
 
caution
  • If there is any problem in the CAN bus lines, an incorrect DTC may be set. Prior to this diagnosis, diagnose the CAN bus lines (Refer to GROUP 54C - CAN Bus Diagnostics Table ).
  • Whenever ECU is replaced, ensure that the CAN bus lines are normal.
  • When DTC C1707 is set in electric parking brake ECU, the DTC may also be set in ETACS-ECU. When the DTC is set in ETACS-ECU, carry out the diagnosis of the DTC for ETACS-ECU first.
 
 
DTC SET CONDITIONS
When received invalid coding data from the ETACS-ECU, this DTC is set.
 
 
TROUBLESHOOTING HINTS
  • The CAN bus line is defective.
  • Malfunction of the ETACS-ECU coding data
  • Malfunction of the ETACS-ECU
  • ETACS-ECUs have been interchanged between two vehicles.
  • Malfunction of the electric parking brake ECU
  • Electric parking brake ECUs have been interchanged between two vehicles.
 
 
DIAGNOSIS
STEP 1. ETACS-ECU coding data check
  • Item: Auto release type for EPB
OK: Type 7
  • Item: Brake type for EPB
OK: Type 3
Is the check result normal?
Go to Step 2.
Replace the ETACS-ECU (Refer to GROUP 54A - ETACS-ECU ).
 
STEP 2. Using scan tool (M.U.T.-IIISE), check whether the DTC is set again.
Check again if the DTC is set.
(1) Erase the DTC.
(2) Turn the ignition switch to the LOCK (OFF) position.
(3) Turn the ignition switch to the ON position.
(4) Check the DTC.
Is the DTC C1707 set?
Replace the electric parking brake ECU (Refer to ).
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ).