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DTC B2417: OSS authenticate error
 
 
cautionWhen 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)
cautionTo 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) ."
(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.
Is the DTC set?
Perform troubleshooting for the OSS-ECU (Refer to troubleshooting ). On completion, go to Step 2.
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)
cautionTo 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) ."
(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.
Is the DTC set?
Perform troubleshooting for the KOS-ECU (Refer to troubleshooting ). On completion, go to Step 3.
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.
Is the DTC set?
Replace KOS-ECU and register the ID codes (Refer to ).
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction ).