B2417

DTC B2417: OSS authenticate error

CAUTION:
When replacing the ECU, always check that the communication circuit is normal.

DTC SET CONDITION

When abnormal data is received from OSS-ECU as a result of the certification communication with OSS-ECU, KOS-ECU sets the DTC B2417.

TECHNICAL DESCRIPTION (COMMENT)

When abnormal data is received from OSS-ECU, KOS-ECU determines that a problem has occurred.

TROUBLESHOOTING HINTS

- Malfunction of OSS-ECU (OSS-ECUs have been interchanged between two vehicles.)
- Malfunction of KOS-ECU

DIAGNOSIS

STEP 1. Using scan tool MB991958, read the other system diagnostic trouble code.

Check again if the DTC is set to the OSS-ECU.

(1)
CAUTION:
To prevent damage to scan tool (MB991958), always turn the power supply mode of the engine switch to the OFF position before connecting or disconnecting scan tool (MB991958).

Connect scan tool MB991958. Refer to "How to connect scan tool (M.U.T.-III) Reading and Clearing Diagnostic Trouble Codes."

(2)Erase the DTC.

(3)Turn the power supply mode of the engine switch to ON.

(4)Check if DTC is set.

(5)Turn the power supply mode of the engine switch to OFF.

Q. Is the DTC set?

YES Perform troubleshooting for the OSS-ECU (Refer to troubleshooting Keyless Operation System (KOS)).
On completion, go to Step 2.
NO Go to Step 2.
STEP 2. Using scan tool MB991958, read the diagnostic trouble code.

Check again if the DTC is set to the KOS-ECU.

(1)
CAUTION:
To prevent damage to scan tool (MB991958), always turn the power supply mode of the engine switch to the OFF position before connecting or disconnecting scan tool (MB991958).

Connect scan tool MB991958. Refer to "How to connect scan tool (M.U.T.-III) Reading and Clearing Diagnostic Trouble Codes."

(2)Erase the DTC.

(3)Turn the power supply mode of the engine switch to ON.

(4)Check if DTC is set.

(5)Turn the power supply mode of the engine switch to OFF.

Q. Is the DTC set?

YES Perform troubleshooting for the KOS-ECU (Refer to troubleshooting Keyless Operation System (KOS)).
On completion, go to Step 3.
NO Go to Step 3.
STEP 3. Recheck for diagnostic trouble code.

Check again if the DTC is set to the KOS-ECU.

(1)Erase the DTC.

(2)Turn the power supply mode of the engine switch from OFF to ON.

(3)Check if DTC is set.

(4)Turn the power supply mode of the engine switch to OFF.

Q. Is the DTC set?

YES Replace KOS-ECU and register the ID codes (Refer to ID Codes Registration Procedure).
NO The trouble can be an intermittent malfunction How to Cope With Intermittent Malfunctions).