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Home >> Mitsubishi >> 2012 >> Lancer Evolution L4-2.0L Turbo (4B11T/C) >> Repair and Diagnosis >> A L L Diagnostic Trouble Codes ( DTC ) >> Testing and Inspection >> B Code Charts >> B2400

B2400




DTC B2400: KOS key registration fail

CAUTION:

- If DTC B2400 is set, diagnose the CAN bus lines.
- When replacing the ECU, always check that the communication circuit is normal.














DTC SET CONDITION

If the registration of the keyless operation key ID to KOS-ECU fails, KOS-ECU sets DTC B2400.

TECHNICAL DESCRIPTION (COMMENT)

Assuming that another keyless operation key has already been registered with KOS-ECU, if the registration of the keyless operation key ID fails when a new keyless operation key is added or the existing key is replaced, KOS-ECU determines that there is a problem.

TROUBLESHOOTING HINTS

- Keyless operation key ID registration failure
- Malfunction of the keyless operation key
- Malfunction of CAN bus line
- Battery drain of keyless operation key
- Damaged wiring harness and connectors
- Malfunction of receiver antenna assembly
- Malfunction of receiver antenna module
- Malfunction of KOS-ECU

DIAGNOSIS

Required Special Tools:

- MB991958: Scan Tool (M.U.T.-III Sub Assembly)
- MB991824: Vehicles Communication Interface (V.C.I.)
- MB991827: M.U.T.-III USB Cable
- MB991910: M.U.T.-III Main Harness A

STEP 1. Using scan tool MB991958, diagnose the CAN bus line.





(1)
CAUTION:
To prevent damage to scan tool (MB991958), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (MB991958).

Connect scan tool MB991958 to the data link connector.
(2)Turn the ignition switch to the "ON" position.
(3)Diagnose the CAN bus line.
(4)Turn the ignition switch to the "LOCK" (OFF) position.

Q. Is the CAN bus line found to be normal?

YES Go to Step 2.

NO Repair the CAN bus line CAN Bus Diagnostics Chart).

STEP 2. Replace the battery in the keyless operation key and recheck the diagnostic trouble code.

Replace the battery of the keyless operation key for which the DTC is set, and check whether the DTC is reset.

(1)Turn the ignition switch from the "LOCK" (OFF) position to the "ON" position.

(2)Check if the DTC is set.

Q. Is the DTC set?

YES Go to Step 3.
NO The procedure is complete (Discharged battery).
STEP 3. Replace the keyless operation key and recheck the diagnostic trouble code.

Replace the keyless operation key for which the DTC is set with a new one, register the key ID and keyless operation key ID (Refer to ID registration procedure manual - ID codes registration judgement table), and check whether the DTC is reset.

(1)Turn the ignition switch from the "LOCK" (OFF) position to the "ON" position.

(2)Check if the DTC is set.

Q. Is the DTC set?

YES Go to Step 4.
NO The procedure is complete.
STEP 4. Check receiver antenna module connector C-08, receiver antenna assembly connector D-14, KOS-ECU connector C-05 and intermittent connector C-41 for loose, corroded or damaged terminals, or terminals pushed back in the connector.

Q. Is the receiver antenna module connector C-08, receiver antenna assembly connector D-14, KOS-ECU connector C-05 and intermittent connector C-41 in good condition?

YES Go to Step 5.
NO Repair the defective connector.
STEP 5. Check the wiring harness between the receiver antenna assembly connector D-14 (terminal Nos.1, 8, 12, 3, 5) and the KOS-ECU connector C-05 (terminal Nos.12, 32, 7, 9, 13) for open circuit.

(1)Disconnect receiver antenna assembly connector D-14 and KOS-ECU connector C-05, and check the wiring harness.





(2)Check the wiring harness between receiver antenna assembly connector D-14 (terminal No.1) and KOS-ECU connector C-05 (terminal No.12).
OK: Continuity exists (2ohms or less)





(3)Check the wiring harness between receiver antenna assembly connector D-14 (terminal No.8) and KOS-ECU connector C-05 (terminal No.32).
OK: Continuity exists (2ohms or less)





(4)Check the wiring harness between receiver antenna assembly connector D-14 (terminal No.12) and KOS-ECU connector C-05 (terminal No.7).
OK: Continuity exists (2ohms or less)





(5)Check the wiring harness between receiver antenna assembly connector D-14 (terminal No.3) and KOS-ECU connector C-05 (terminal No.9).
OK: Continuity exists (2ohms or less)





(6)Check the wiring harness between receiver antenna assembly connector D-14 (terminal No.5) and KOS-ECU connector C-05 (terminal No.13).
OK: Continuity exists (2ohms or less)
Q. Is the wiring harness between receiver antenna assembly connector D-14 (terminal Nos.1, 8, 12, 3, 5) and the KOS-ECU connector C-05 (terminal Nos.12, 32, 7, 9, 13) in good condition?

YES : Go to Step 6.

NO (receiver antenna assembly connector D-14 terminal No.1 - KOS-ECU connector C-05 terminal No.12.) : Repair the wiring harness between receiver antenna assembly connector D-14 (terminal No.1) and the KOS-ECU connector C-05 (terminal No.12).

NO (receiver antenna assembly connector D-14 terminal No.8 - KOS-ECU connector C-05 terminal No.32.) : Repair the wiring harness between receiver antenna assembly connector D-14 (terminal No.8) and the KOS-ECU connector C-05 (terminal No.32).

NO (receiver antenna assembly connector D-14 terminal No.12 - KOS-ECU connector C-05 terminal No.7.) : Repair the wiring harness between receiver antenna assembly connector D-14 (terminal No.12) and the KOS-ECU connector C-05 (terminal No.7).

NO (receiver antenna assembly connector D-14 terminal No.3 - KOS-ECU connector C-05 terminal No.9.) : Repair the wiring harness between receiver antenna assembly connector D-14 (terminal No.3) and the KOS-ECU connector C-05 (terminal No.9).

NO (receiver antenna assembly connector D-14 terminal No.5 - KOS-ECU connector C-05 terminal No.13.) : Repair the wiring harness between receiver antenna assembly connector D-14 (terminal No.5) and the KOS-ECU connector C-05 (terminal No.13).

STEP 6. Check the wiring harness between the receiver antenna assembly connector D-14 (terminal Nos.1, 8, 12, 3, 5) and the ground for short circuit.

(1)Disconnect receiver antenna assembly connector D-14, and check the wiring harness.





(2)Check the wiring harness between receiver antenna assembly connector D-14 (terminal No.1) and ground.
OK: No continuity





(3)Check the wiring harness between receiver antenna assembly connector D-14 (terminal No.8) and ground.
OK: No continuity





(4)Check the wiring harness between receiver antenna assembly connector D-14 (terminal No.12) and ground.
OK: No continuity





(5)Check the wiring harness between receiver antenna assembly connector D-14 (terminal No.3) and ground.
OK: No continuity





(6)Check the wiring harness between receiver antenna assembly connector D-14 (terminal No.5) and ground.
OK: No continuity
Q. Is the wiring harness between receiver antenna assembly connector D-14 (terminal Nos.1, 8, 12, 3, 5) and the ground in good condition?

YES : Go to Step 7.

NO (receiver antenna assembly connector D-14 terminal No.1 - ground.) : Repair the wiring harness between receiver antenna assembly connector D-14 (terminal No.1) and the ground.

NO (receiver antenna assembly connector D-14 terminal No.8 - ground.) : Repair the wiring harness between receiver antenna assembly connector D-14 (terminal No.8) and the ground.

NO (receiver antenna assembly connector D-14 terminal No.12 - ground.) : Repair the wiring harness between receiver antenna assembly connector D-14 (terminal No.12) and the ground.

NO (receiver antenna assembly connector D-14 terminal No.3 - ground.) : Repair the wiring harness between receiver antenna assembly connector D-14 (terminal No.3) and the ground.

NO (receiver antenna assembly connector D-14 terminal No.5 - ground.) : Repair the wiring harness between receiver antenna assembly connector D-14 (terminal No.5) and the ground.

STEP 7. Replace the receiver antenna assembly, and check whether the diagnostic trouble code is reset.

(1)Turn the ignition switch from the "LOCK" (OFF) position to the "ON" position.

(2)Check if the DTC is set.

Q. Is the DTC set?

YES Go to Step 8.
NO The procedure is complete.
STEP 8. Check the wiring harness between the receiver antenna module connector C-08 (terminal Nos. 2, 1, 8, 12) and the KOS-ECU connector C-05 (terminal Nos. 11, 12, 32, 7) for open circuit.

(1)Disconnect receiver antenna module connector C-08 and KOS-ECU connector C-05, and check the wiring harness.





(2)Check the wiring harness between receiver antenna module connector C-08 (terminal No.2) and KOS-ECU connector C-05 (terminal No.11).
OK: Continuity exists (2ohms or less)





(3)Check the wiring harness between receiver antenna module connector C-08 (terminal No.1) and KOS-ECU connector C-05 (terminal No.12).
OK: Continuity exists (2ohms or less)





(4)Check the wiring harness between receiver antenna module connector C-08 (terminal No.8) and KOS-ECU connector C-05 (terminal No.32).
OK: Continuity exists (2ohms or less)





(5)Check the wiring harness between receiver antenna module connector C-08 (terminal No.12) and KOS-ECU connector C-05 (terminal No.7).
OK: Continuity exists (2ohms or less)
Q. Is the wiring harness between receiver antenna module connector C-08 (terminal Nos. 2, 1, 8, 12) and the KOS-ECU connector C-05 (terminal Nos. 11, 12, 32, 7) in good condition?

YES : Go to Step 9.

NO (receiver antenna module connector C-08 terminal No.2 - KOS-ECU connector C-05 terminal No.11.) : Repair the wiring harness between receiver antenna module connector C-08 (terminal No. 2) and the KOS-ECU connector C-05 (terminal No. 11).

NO (receiver antenna module connector C-08 terminal No.1 - KOS-ECU connector C-05 terminal No.12.) : Repair the wiring harness between receiver antenna module connector C-08 (terminal No. 1) and the KOS-ECU connector C-05 (terminal No. 12).

NO (receiver antenna module connector C-08 terminal No.8 - KOS-ECU connector C-05 terminal No.32.) : Repair the wiring harness between receiver antenna module connector C-08 (terminal No. 8) and the KOS-ECU connector C-05 (terminal No. 32).

NO (receiver antenna module connector C-08 terminal No.12 - KOS-ECU connector C-05 terminal No.7.) : Repair the wiring harness between receiver antenna module connector C-08 (terminal No. 12) and the KOS-ECU connector C-05 (terminal No. 7).

STEP 9. Check the wiring harness between the receiver antenna module connector C-08 (terminal Nos.2, 1, 8, 12) and the ground for short circuit.

(1)Disconnect receiver antenna module connector C-08, and check the wiring harness.





(2)Check the wiring harness between receiver antenna module connector C-08 (terminal No.2) and ground.
OK: No continuity





(3)Check the wiring harness between receiver antenna module connector C-08 (terminal No.1) and ground.
OK: No continuity





(4)Check the wiring harness between receiver antenna module connector C-08 (terminal No.8) and ground.
OK: No continuity





(5)Check the wiring harness between receiver antenna module connector C-08 (terminal No.12) and ground.
OK: No continuity
Q. Is the wiring harness between receiver antenna module connector C-08 (terminal Nos.2, 1, 8, 12) and the ground in good condition?

YES : Go to Step 10.

NO (receiver antenna module connector C-08 terminal No.2 - ground.) : Repair the wiring harness between receiver antenna module connector C-08 (terminal No.2) and the ground.

NO (receiver antenna module connector C-08 terminal No.1 - ground.) : Repair the wiring harness between receiver antenna module connector C-08 (terminal No.1) and the ground.

NO (receiver antenna module connector C-08 terminal No.8 - ground.) : Repair the wiring harness between receiver antenna module connector C-08 (terminal No.8) and the ground.

NO (receiver antenna module connector C-08 terminal No.12 - ground.) : Repair the wiring harness between receiver antenna module connector C-08 (terminal No.12) and the ground.

STEP 10. Replace the receiver antenna module, and check whether the diagnostic trouble code is reset.

(1)Turn the ignition switch from the "LOCK" (OFF) position to the "ON" position.

(2)Check if the DTC is set.

Q. Is the DTC set?

YES Replace KOS-ECU and register the ID codes (Refer to ID registration procedure manual - ID codes registration judgement table).
NO The procedure is complete.
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