B2775

ENGINE IMMOBILISER SYSTEM (w/ Smart Key System): B2775: Interior Verification Abnormal (To Theft Deterrent ECU)

DTC B2775 - Interior Verification Abnormal (To Theft Deterrent ECU)

DESCRIPTION

This DTC is output when: 1) there is no response from the certification ECU, 2) the ECU communication ID was unable to be registered properly, 3) a communication error occurs between the transponder key ECU and certification ECU.





INSPECTION PROCEDURE

PROCEDURE

1. CHECK FOR DTC
(a) Delete the DTC.
(b) Check for DTCs when turning the power switch ON (IG) without inserting the key into the key slot.

Result:





B -- NORMAL
A -- Continue to next step.
2. CHECK CERTIFICATION ECU (VERIFICATION)
(a) Check that the smart indicator on the meter is ON.

Result:





B -- GO TO SMART KEY SYSTEM (for Door lock)
A -- Continue to next step.
3. CHECK TRANSPONDER KEY ECU
(a) Insert the key into the key slot.
(b) Check that the power switch can be turned ON (IG).
OK:
Power switch can be turned ON (IG).
OK -- REREGISTER ECU COMMUNICATION ID CODE
NG -- Continue to next step.
4. CHECK FOR DTC (IMMOBILISER SYSTEM DTC)
(a) Check for DTCs and note any codes that are output.
(b) Delete the DTC.
(c) Recheck for DTCs. Try to prompt the DTC by simulating the original activity that the DTC suggests.

Result:





NG -- GO TO DTC CHART
OK -- Continue to next step.
5. REREGISTER ECU COMMUNICATION ID CODE
(a) Reregister the ECU communication ID code with a transponder key ECU and certification ECU.
(b) Check that the power switch can be turned ON (IG) even if the key is not inserted into the key slot.
OK:
Power switch can be turned ON (IG) without key in key slot
OK -- NORMAL
NG -- Continue to next step.
6. CHECK TRANSPONDER KEY ECU (OPERATION)
(a) Temporarily replace the transponder key ECU with a new or normally functioning one.
(b) Check that the power switch can be turned ON (ACC or IG) and the hybrid control system can be started.

Result:





C -- GO TO SMART KEY SYSTEM
B -- REPLACE CERTIFICATION ECU
A -- END (TRANSPONDER KEY ECU IS DEFECTIVE)