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DTC B1E17 Taillight(RH) deactivated (FET failure)
 
 
cautionBefore replacing the ECU, ensure that the power supply circuit, the ground circuit and the communication circuit are normal.
 
 
TROUBLE JUDGMENT
DTC No. B1E17 will be set when the right taillight control circuit in the ETACS-ECU fails.
 
 
TECHNICAL DESCRIPTION (COMMENT)
DTC No. B1E17 will be set when the ETACS-ECU detects a short to ground in its right taillight control circuit.
 
 
TROUBLESHOOTING HINTS
  • The right taillight control circuit fails
  • The ETACS-ECU may be defective
 
 
DIAGNOSIS
Using scan tool (M.U.T.-IIISE), read the DTC.
Check if the DTC No. B16A7 is set to the ETACS-ECU.
Is the DTC set?
Carry out the troubleshooting for DTC No. B16A7. On completion, replace the ETACS-ECU when it has not been replaced as the troubleshooting process for DTC No. B16A7. This is because DTC No. B1E17 cannot be erased.
Replace the ETACS-ECU.