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DTC B1703: Transponder ID unmatched
 
 
cautionWhenever the ECU is replaced, ensure that the power supply circuit, the ground circuit and the communication circuit are normal.
 
 
TROUBLE JUDGMENT
When the key ID that is sent from the transponder does not correspond to the key ID registered in the ETACS-ECU, the ETACS-ECU stores DTC No.B1703.
noteDTC No.B1703 is always set along with MFI system DTC No.P0513.
 
 
 
TROUBLESHOOTING HINTS
  • Ignition key (key ID) is not registered
  • The ETACS-ECU may be defective.
 
 
 
 
DIAGNOSIS
Register all the ignition key IDs again, and recheck the DTC.
(1)
cautionTo prevent damage to scan tool (M.U.T.-III), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (M.U.T.-III).
Connect scan tool (M.U.T.-III). Refer to "How to connect the Scan Tool (M.U.T.-III) ."
(2) Register all the ignition keys again (Refer to ).
(3) Turn the ignition switch from the "LOCK" (OFF) position to the ON position.
(4) Check that DTC No.B1703 is not reset.
Is DTC No.B1703 set?
Replace the ETACS-ECU. After registering the ID codes, check if the DTC is stored.
The diagnosis is complete. If another DTC is stored, refer to DTC Chart .