Wireless Control Module (Wcm) - Lancer: Diagnosis Mitsubishi Lancer X рестайлинг

STANDARD FLOW OF DIAGNOSTIC TROUBLESHOOTING

Refer to TROUBLESHOOTING .

HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)

Required Special Tools

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

Scheme 5

1. Ensure that the ignition switch is at the "LOCK" (OFF) position.
2. Start up the personal computer.
3. Connect special tool MB991827 to special tool MB991824 and the personal computer.
4. Connect special tool MB991910 to special tool MB991824.
5. Connect special tool MB991910 to the data link connector.
6. Turn the power switch of special tool MB991824 to the "ON" position. NOTE: When special tool MB991824 is energized, special tool MB991824 indicator light will be illuminated in a green color.
7. Start the M.U.T.-III system on the personal computer. NOTE: Disconnecting scan tool MB991958 is the reverse of the connecting sequence, making sure that the ignition switch is at the "LOCK" (OFF) position.

HOW TO READ AND ERASE DIAGNOSTIC TROUBLE CODES

Required Special Tools

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

Note. If the battery voltage is low, diagnostic trouble codes will not be set. Check the battery if scan tool MB991958 does not display.

1. Connect scan tool MB991958 to the data link connector.
2. Turn the ignition switch to the "ON" position.
3. Select "System select" from the start-up screen.
4. Select "From 2006 MY" of "Model Year." When the "Vehicle Information" is displayed, check the contents.
5. Select "WCM" from "System List", and press the "OK" button. NOTE: When the "Loading Option Setup" list is displayed, check the applicable item.
6. Select "Diagnostic Trouble Code." to read the DTC.
7. If a DTC is set, it is shown.
8. Choose "Erase DTCs" to erase the DTC.

DIAGNOSTIC TROUBLE CODE CHART

DIAGNOSTIC TROUBLE CODE CHART

DTC SET CONDITION

WCM checks that the engine control module data has been received via the CAN bus lines, and if not, sets the DTC No. B1731.

TROUBLESHOOTING HINTS

1. Malfunction of CAN bus line
2. Malfunction of WCM
3. Malfunction of ETACS-ECU
4. Damaged wiring harness and connectors
5. Malfunction of engine control module

DIAGNOSIS

Required Special Tools

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

Scheme 6

1. STEP 1. Using scan tool MB991958, diagnose the CAN bus line. 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. Turn the ignition switch to the "ON" position. Diagnose the CAN bus line. 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. (Refer to «DIAGNOSIS»(ref-592553-S00268715102014011000000) ).
2. STEP 2. Using scan tool MB991958, read the engine control module diagnostic trouble code. Check again if the DTC is set to the engine control module. Q: Is the DTC set? YES: Troubleshoot the MFI system (Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592554-S34172480472014011000000) < 2.0L Engine Non-turbo > or «DIAGNOSTIC TROUBLE CODE CHART»(ref-592555-S21340300262014011000000) < 2.0L Engine Turbo > or «DIAGNOSTIC TROUBLE CODE CHART»(ref-592556-S26682004632014011000000) < 2.4L Engine >). NO: Go to Step 3.
3. STEP 3. Using scan tool MB991958, read the other system diagnostic trouble code. Check if DTC U0100 is set to ETACS-ECU. Q: Is the DTC set? YES: Go to Step 5 . NO: Go to Step 4.
4. STEP 4. Recheck for diagnostic trouble code. Check again if the DTC is set to the WCM. Turn the ignition switch from "LOCK" (OFF) position to "ON" position. Check if DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). After registering the ID codes, go to Step 6 . NO: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) ).
5. STEP 5. Recheck for diagnostic trouble code. Check again if the DTC is set to the WCM. Turn the ignition switch from "LOCK" (OFF) position to "ON" position. Check if DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Replace the engine control module and record the VIN (Refer to «HOW TO PERFORM VEHICLE IDENTIFICATION NUMBER (VIN) WRITING»(ref-592551-S08939969392014011000000) ). Then go to Step 6. NO: The procedure is complete.
6. STEP 6. Recheck for diagnostic trouble code. Check again if the DTC is set to the WCM. Turn the ignition switch from "LOCK" (OFF) position to "ON" position. Check if DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Replace the ETACS-ECU. NO: The procedure is complete.

WCM sets DTC B1761 when no VIN is recorded in it.

1. VIN not programmed
2. Malfunction of the WCM

Required Special Tools

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

Scheme 7

1. STEP 1. Using scan tool MB991958, diagnose the CAN bus line. 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. Turn the ignition switch to the "ON" position. Diagnose the CAN bus line. 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. (Refer to «DIAGNOSIS»(ref-592553-S00268715102014011000000) ).
2. STEP 2. Register the VIN and recheck the diagnostic trouble code. Register VIN in WCM (Refer to «HOW TO PERFORM VEHICLE IDENTIFICATION NUMBER (VIN) WRITING»(ref-592551-S08939969392014011000000) ) and recheck if the DTC is set. Turn the ignition switch from the "LOCK" (OFF) position to the "ON" position. Check if DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). NO: The procedure is complete.

DTC B1A08: Keyless/KOS key1 Performance; DTC B1A09: Keyless/KOS key2 Performance; DTC B1A0A: Keyless/KOS key3 Performance; DTC B1A0B: Keyless/KOS key4 Performance; DTC B1A0C: Keyless key 5 Performance; DTC B1A0D: Keyless key 6 Performance; DTC B1A0E: Keyless key 7 Performance; DTC B1A0F: Keyless key 8 Performance

The door locking/unlocking code is automatically updated every time the doors are locked (rolling code). WCM stores DTC B1A08, B1A09, B1A0A, B1A0B, B1A0C, B1A0D, B1A0E, or B1A0F when it receives wrong signal (rolling code out of synchronization) from the transmitter.

1. Rolling code out of synchronization
2. Malfunction of the transmitter
3. Malfunction of the WCM

1. STEP 1. Synchronize the rolling code and recheck the diagnostic trouble code. Synchronize the rolling code. Push the lock button or unlock button of transmitter twice or more. If the keyless operation does not resume by the procedure above, register the key again (Refer to «CUSTOMIZATION FUNCTION»(ref-592550-S28751554082014011000000) ). Recheck if the diagnostic trouble code is set. Push the lock button or unlock button of transmitter. Check if the diagnostic trouble code is set. Q: Is the DTC set? YES: Go to Step 2. NO: The diagnosis is complete.
2. STEP 2. Check whether the diagnostic trouble code is reset. Replace the transmitter by which the diagnostic trouble code is set with a new one, register the key (Refer to «INSPECTION PROCEDURE 5: KEYLESS ENTRY SYSTEM DOES NOT WORK.»(ref-592550-S35212663662014011000000) ), and recheck if the diagnostic trouble code is set. Push the lock button or unlock button of transmitter. Check if the diagnostic trouble code is set. Q: Is the DTC set? YES: Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). NO: The diagnosis is complete.

DTC B1A10: Keyless/KOS key 1 Low Battery; DTC B1A11: Keyless/KOS key 2 Low Battery; DTC B1A12: Keyless/KOS key 3 Low Battery; DTC B1A13: Keyless/KOS key 4 Low Battery; DTC B1A14: Keyless key 5 Low Battery; DTC B1A15: Keyless key 6 Low Battery; DTC B1A16: Keyless key 7 Low Battery; DTC B1A17: Keyless key 8 Low Battery

WCM sets DTC B1A10, B1A11, B1A12, B1A13, B1A14, B1A15, B1A16, or B1A17 when it receives low battery voltage signal from the transmitter.

1. Battery failure in the transmitter
2. Malfunction of the transmitter
3. Malfunction of WCM

1. STEP 1. Replace the battery in the transmitter and recheck the diagnostic trouble code. Replace the battery in the transmitter by which the DTC is set with a new one, and recheck if the DTC is set (Refer to «TRANSMITTER»(ref-592550-S23545289962014011000000) ). Replace the battery in the transmitter by which the DTC is set. Use the transmitter to lock/unlock the doors. Check if the DTC is set. Q: Is the DTC set? YES: Go to Step 2. NO: The diagnosis is complete (Discharged battery).
2. STEP 2. Replace the transmitter and recheck the diagnostic trouble code. Replace the transmitter by which the DTC is set with a new one, register the key ID and the keyless entry secret code (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ), and recheck if the DTC is set. Use the transmitter to lock/unlock the doors. Check if the DTC is set. Q: Is the DTC set? YES: Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). NO: The diagnosis is complete.

DTC B1A24: Key ID Not Registered

WCM sets DTC B1A24 when the encrypted code was not registered in it.

1. Key ID not registered
2. Malfunction of the ignition key
3. Malfunction of WCM

Required Special Tools

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

Scheme 8

1. STEP 1. Using scan tool MB991958, diagnose the CAN bus line. 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. Turn the ignition switch to the "ON" position. Diagnose the CAN bus line. 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. (Refer to «DIAGNOSIS»(ref-592553-S00268715102014011000000) ).
2. STEP 2. Register the key ID and recheck the diagnostic trouble code. Register the key ID of the ignition key (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ), and recheck if the DTC is set. Turn the ignition switch from the "LOCK" (OFF) position to the "ON" position. Check if the DTC is set. Q: Is the DTC set? YES: Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). NO: The procedure is complete.

DTC B1A25: Key ID Unmatched

WCM sets DTC B1A25 when the received key ID is different from the one registered in it.

1. Malfunction of the ignition key
2. Accessory key not registered
3. Accessory WCM not registered
4. Key is registered to another vehicle
5. Malfunction of WCM

Required Special Tools

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

Scheme 9

1. STEP 1. Using scan tool MB991958, diagnose the CAN bus line. 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. Turn the ignition switch to the "ON" position. Diagnose the CAN bus line. 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. (Refer to «DIAGNOSIS»(ref-592553-S00268715102014011000000) ).
2. STEP 2. Register the key ID and recheck the diagnostic trouble code. Register the key ID of the ignition key (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ), and recheck if the DTC is set. Turn the ignition switch from the "LOCK" (OFF) position to the "ON" position. Check if the DTC is set. Q: Is the DTC set? YES: Go to Step 3. NO: The procedure is complete.
3. STEP 3. Replace the ignition key and recheck the diagnostic trouble code. Replace the ignition key by which the DTC is set with the other key, and recheck if the DTC is set. Turn the ignition switch from the "LOCK" (OFF) position to the "ON" position. Check if the DTC is set. Q: Is the DTC set? YES: Go to Step 4. NO: Go to Step 5 .
4. STEP 4. Register the key ID and recheck the diagnostic trouble code. Register the key ID of the ignition key (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ), and recheck if the DTC is set. Turn the ignition switch from the "LOCK" (OFF) position to the "ON" position. Check if the DTC is set. Q: Is the DTC set? YES: Go to Step 5. NO: The procedure is complete.
5. STEP 5. Replace the ignition key and recheck the diagnostic trouble code. Replace the ignition key with a new one, register the key ID and keyless ID of the new key, (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ), and recheck if the DTC is set. Turn the ignition switch from the "LOCK" (OFF) position to the "ON" position. Check if the DTC is set. Q: Is the DTC set? YES: Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). NO: The procedure is complete.

DTC B1A28: Engine Control Module Authenticate Error

WCM sets DTC B1A28 when the ignition key certification result and the engine control module starting condition do not match.

1. Malfunction of CAN bus line
2. Malfunction of WCM
3. Engine control module malfunction
4. VIN registered in engine control module unmatched

Required Special Tools

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

Scheme 10

1. STEP 1. Using scan tool MB991958, diagnose the CAN bus line. 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. Turn the ignition switch to the "ON" position. Diagnose the CAN bus line. 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. (Refer to «DIAGNOSIS»(ref-592553-S00268715102014011000000) ).
2. STEP 2. Using scan tool MB991958, read the engine control module diagnostic trouble code. Check again if the DTC is set to the engine control module. Q: Is the DTC set? YES: Troubleshoot the MFI system (Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592554-S34172480472014011000000) < 2.0L Engine Non-turbo > or «DIAGNOSTIC TROUBLE CODE CHART»(ref-592555-S21340300262014011000000) < 2.0L Engine Turbo > or «DIAGNOSTIC TROUBLE CODE CHART»(ref-592556-S26682004632014011000000) < 2.4L Engine >). NO: Go to Step 3.
3. STEP 3. Using scan tool MB991958, read the diagnostic trouble code. Check if the DTC is set to the WCM. Turn the ignition switch from the "LOCK" (OFF) position to the "ON" position. Check if the DTC is set. Q: Is DTC B1761 or B2206 set other than B1A28? YES: Perform the troubleshooting for each DTC. Refer to «DTC B1761: VIN CODE NOT PROGRAMMED»(ref-592550-S03938756802014011000000) and «DTC B2206: VIN CODE MISMATCH»(ref-592550-S07076304232014011000000) . NO: Go to Step 4.
4. STEP 4. Recheck for diagnostic trouble code. Check again if the DTC is set to the WCM. Turn the ignition switch from the "LOCK" (OFF) position to the "ON" position. Check if the DTC is set. Q: Is the DTC set? YES: Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). Then go to Step 5. NO: The diagnosis is complete.
5. STEP 5. Recheck for diagnostic trouble code. Check again if the DTC is set to the WCM. Turn the ignition switch from the "LOCK" (OFF) position to the "ON" position. Check if the DTC is set. Q: Is the DTC set? YES: Replace the engine control module and record VIN (Refer to «HOW TO PERFORM VEHICLE IDENTIFICATION NUMBER (VIN) WRITING»(ref-592551-S08939969392014011000000) ). NO: The procedure is complete.

DTC B1A35: Transponder Read Error

WCM sets DTC B1A35 when it cannot receive data from the transponder.

1. Malfunction of the ignition key
2. Malfunction of WCM
3. Interference of the encrypted code

Required Special Tools

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

Scheme 11

1. STEP 1. Using scan tool MB991958, diagnose the CAN bus line. 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. Turn the ignition switch to the "ON" position. Diagnose the CAN bus line. 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. (Refer to «DIAGNOSIS»(ref-592553-S00268715102014011000000) ).
2. STEP 2. Check the ignition key inserted in the key cylinder for interference. Q: Are there other ignition keys or anything that interferes with the communication (things that generate radio waves such as magnets or air-cleaning device that has a power plug) near the ignition key inserted in the key cylinder? YES: Move away or remove other ignition keys or anything that interferes with the communication, and go to Step 3. NO: Go to Step 3.
3. STEP 3. Recheck for diagnostic trouble code. Check again if the DTC is set to the WCM. Turn the ignition switch from the "LOCK" (OFF) position to the "ON" position. Check if the DTC is set. Q: Is the DTC set? YES: Go to Step 4. NO: The procedure is complete.
4. STEP 4. Replace the ignition key and recheck the diagnostic trouble code. Replace the ignition key by which the DTC is set with the other key, and recheck if the DTC is set. Turn the ignition switch from the "LOCK" (OFF) position to the "ON" position. Check if the DTC is set. Q: Is the DTC set? YES: Go to Step 5. NO: Go to Step 6 .
5. STEP 5. Register the key ID and recheck the diagnostic trouble code. Register the key ID of the ignition key (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ), and recheck if the DTC is set. Turn the ignition switch from the "LOCK" (OFF) position to the "ON" position. Check if the DTC is set. Q: Is the DTC set? YES: Go to Step 6. NO: The procedure is complete.
6. STEP 6. Replace the ignition key and recheck the diagnostic trouble code. Replace the ignition key by which the DTC is set with a new one, register the key ID of the new key, (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ), and recheck if the DTC is set. Turn the ignition switch from the "LOCK" (OFF) position to the "ON" position. Check if the DTC is set. Q: Is the DTC set? YES: Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). NO: The procedure is complete.

WCM sets DTC B2101 or B2012 when the actual state of the ignition switch and the ignition switch position information received from ETACS-ECU via CAN do not match.

1. Malfunction of CAN bus line
2. Malfunction of the WCM
3. Malfunction of the ignition switch
4. Damaged wiring harness and connectors
5. Malfunction of ETACS-ECU

Required Special Tools

1. 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 (Vehicles with CAN communication system)

Scheme 12

1. STEP 1. Using scan tool MB991958, diagnose the CAN bus line. 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. Turn the ignition switch to the "ON" position. Diagnose the CAN bus line. 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. (Refer to «DIAGNOSIS»(ref-592553-S00268715102014011000000) ).
2. STEP 2. Check ETACS-ECU connector C-317 and WCM connector C-09 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is ETACS-ECU connector C-317 and WCM connector C-09 in good condition? YES: Go to Step 3. NO: Repair the defective connector.
3. STEP 3. Check the wiring harness between WCM connector C-09 (terminal No. 9) and ETACS-ECU connector C-317 (terminal No. 5). Check the power supply line for open circuit. NOTE: Also check joint connector (1) C-03 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If joint connector (1) C-03 is damaged, repair or replace the damaged component(s) as described in «HARNESS CONNECTOR INSPECTION»(ref-592557-S11382637462014011000000) . Q: Is the wiring harness between WCM connector C-09 (terminal No. 9) and ETACS-ECU connector C-317 (terminal No. 5) in good condition? YES: Go to Step 4. NO: The wiring harness may be damaged or the connector(s) may have loose, corroded or damaged terminals, or terminals pushed back in the connector.
4. STEP 4. Using scan tool MB991958, check data list. Use the ETACS-ECU data list to check the signals related to the ignition voltage. Turn the ignition switch from "LOCK" (OFF) position to "ON" position. IGNITION SWITCH ON CONDITIONS Item No. Item name Normal conditions Item 254 IG voltage Battery positive voltage Q: Does scan tool MB991958 display the item "IG voltage" as normal condition? YES: Go to Step 5. NO: Diagnose the ETACS-ECU. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592558-S22710001632014011000000) .
5. STEP 5. Recheck for diagnostic trouble code. Check again if the DTC is set to the WCM. Erase the DTC. Turn the ignition switch from "LOCK" (OFF) position to "ON" position. Check if DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Replace WCM and register the ID codes. (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) .) NO: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) ).

If the vehicle information data transmitted from the ETACS-ECU via the CAN bus lines is different from that registered in the WCM, the WCM sets the DTC No. B2204.

1. Malfunction of WCM
2. Malfunction of ETACS-ECU

Required Special Tools

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

Scheme 13

1. STEP 1. Using scan tool MB991958, diagnose the CAN bus line. 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. Turn the ignition switch to the "ON" position. Diagnose the CAN bus line. 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. (Refer to «DIAGNOSIS»(ref-592553-S00268715102014011000000) ).
2. STEP 2. Using scan tool MB991958, read the ETACS-ECU diagnostic trouble code Check if a coding-related DTC is set in the ETACS-ECU. Q: Is the DTC set? YES: Troubleshoot the ETACS. (Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592558-S22710001632014011000000) .) NO: Go to Step 3.
3. STEP 3. Recheck for diagnostic trouble code. Check again if the DTC is set to the WCM. Erase the DTC. Turn the ignition switch from "LOCK" (OFF) position to "ON" position. Check if DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). NO: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) ).

WCM sets DTC B2206 when chassis number registered in it and the VIN that has been transmitted on the CAN bus do not match.

1. Malfunction of WCM
2. VIN registered in engine ECU unmatched
3. WCM being registered to another vehicle

Required Special Tools

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

Scheme 14

1. STEP 1. Check the VIN registered in the engine control module and the VIN of the vehicle. Check if the VIN registered in the engine control module matches with the VIN of the vehicle. 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. On the system selection screen of the M.U.T.-III, select "MFI/GDI/Diesel". Select "Coding." Select "VIN Information." Compare with the VIN of the vehicle. Q: Does the VIN of the engine control module match with the VIN of the vehicle? YES: Go to Step 2. NO: Write the VIN to the engine control module. (Refer to «HOW TO PERFORM VEHICLE IDENTIFICATION NUMBER (VIN) WRITING»(ref-592551-S08939969392014011000000) ). Record VIN and go to Step 2.
2. STEP 2. Recheck for diagnostic trouble code. Check again if the DTC is set to the WCM. Turn the ignition switch to the "ON" position. Check if the DTC is set. Q: Is the DTC set? YES: Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). After registering the ID codes, go to Step 3. NO: The procedure is complete.
3. STEP 3. Recheck for diagnostic trouble code. Check again if the DTC is set to the WCM. Turn the ignition switch to the "ON" position. Check if the DTC is set. Q: Is the DTC set? YES: Replace the engine control module and record the VIN (Refer to «HOW TO PERFORM VEHICLE IDENTIFICATION NUMBER (VIN) WRITING»(ref-592551-S08939969392014011000000) ). NO: The procedure is complete.

WCM sets the DTC B2352 when open or short circuit to the ground in the antenna is detected.

TROUBLESHOOTING HINT

Malfunction of WCM (Open circuit in antenna)

Required Special Tools

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

Recheck for diagnostic trouble code.

Check again if the DTC is set to the WCM.

1. Connect scan tool MB991958 to the data link connector. Erase the DTC.
2. Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
3. Check if DTC is set.
4. Turn the ignition switch to the "LOCK" (OFF) position.

Q: Is the DTC set?

Scheme 15

1. YES: Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ).
2. NO: The procedure is complete.

If the keyless ID registered transmitter is not registered to the WCM, the WCM sets the DTC No. B2401.

1. Malfunction of CAN bus line
2. Failure of transmitter registration process
3. Malfunction of WCM

Required Special Tools

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

Scheme 16

1. STEP 1. Using scan tool MB991958, diagnose the CAN bus line. 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. Turn the ignition switch to the "ON" position. Diagnose the CAN bus line. 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. (Refer to «DIAGNOSIS»(ref-592553-S00268715102014011000000) ).
2. STEP 2. Register the transmitter and recheck the diagnostic trouble code. Register the keyless ID (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ), and recheck if the DTC is set. Erase the DTC. Turn the ignition switch from the "LOCK" (OFF) position to the "ON" position. Check if the DTC is set. Q: Is the DTC set? YES: Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). NO: The procedure is complete.

WCM sets DTC B2416 when it determines an abnormal status within itself.

Malfunction of WCM

Required Special Tools

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

Recheck for diagnostic trouble code.

Check again if the DTC is set to the WCM.

1. Connect scan tool MB991958 to the data link connector.
2. Erase the DTC.
3. Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
4. Check if DTC is set.
5. Turn the ignition switch to the "LOCK" (OFF) position.

Q: Is the DTC set?

Scheme 17

1. YES: Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ).
2. NO: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) ).

WCM incorporates EEPROM (nonvolatile memory), and that EEPROM stores the TPMS, WCM and immobilizer information. When the data in EEPROM is failed, this code is set.

The most likely causes for this DTC to set are

1. Damaged wiring harness and connector
2. Malfunction of WCM

Required Special Tools

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

1. STEP 1. M.U.T.-III CAN bus diagnostics Use scan tool to diagnose the CAN bus lines. Q: Is the check result normal? YES: Go to Step 2. NO: Repair the CAN bus lines (Refer to «CAN BUS DIAGNOSTICS TABLE»(ref-592553-S29310113992014011000000) ). On completion, go to Step 2.
2. STEP 2. Diagnostic trouble code check Turn the ignition switch to the "LOCK" (OFF) position. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC C1608 set? YES: Replace the WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). Then go to Step 3. NO: The procedure is complete.
3. STEP 3. Diagnostic trouble code check Turn the ignition switch to the "LOCK" (OFF) position. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC C1608 set? YES: Start over at Step 1 . NO: The procedure is complete.

When the ID registration information of the TPMS transmitter is not stored in the WCM, and/or when the WCM is replaced with a new one, this code is set. If the ID registration mode is terminated forcibly or time-out after one or more TPMS transmitters are registered in the ID registration mode, the ID information in the WCM is erased, and this diagnostic trouble code is set.

The most likely causes for this DTC to set are

1. Damaged wiring harness and connector
2. Malfunction of TPMS transmitter
3. Malfunction of WCM
4. ID code registration failed.

Required Special Tools

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

1. STEP 1. M.U.T.-III CAN bus diagnostics Use scan tool to diagnose the CAN bus lines. Q: Is the check result normal? YES: Go to Step 2. NO: Repair the CAN bus lines (Refer to «CAN BUS DIAGNOSTICS TABLE»(ref-592553-S01090254822014011000000) ). On completion, go to Step 2.
2. STEP 2. Diagnostic trouble code check Turn the ignition switch to the "LOCK" (OFF) position. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC C1900 set? YES: Register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). Then go to Step 3. NO: The procedure is complete.
3. STEP 3. Recheck for diagnostic trouble code. Check again if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC C1900 reset? YES: Replace the WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). Then start over at Step 1 . NO: The procedure is complete.

WCM receives the wheel speed information from ASC-ECU via the CAN-bus line. Although WCM receives the information that the wheel is not currently rotated from ASC-ECU, if the TPMS transmitter sends the information that the wheel is rotated, this code is set.

The most likely causes for this DTC to set are

1. Damaged wiring harness and connector
2. Malfunction of TPMS transmitter
3. Malfunction of WCM
4. Malfunction of ASC-ECU
5. Malfunction of ETACS-ECU

Required Special Tools

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

1. STEP 1. M.U.T.-III CAN bus diagnostics Use scan tool to diagnose the CAN bus lines. Q: Is the check result normal? YES: Go to Step 3 . NO: Repair the CAN bus lines (Refer to «CAN BUS DIAGNOSTICS TABLE»(ref-592553-S01090254822014011000000) ). On completion, go to Step 2.
2. STEP 2. Diagnostic trouble code recheck after resetting CAN bus lines Turn the ignition switch to the "LOCK" (OFF) position. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC C1901 set? YES: Go to Step 3. NO: The procedure is complete.
3. STEP 3. Check for other diagnostic trouble code. Check if the diagnostic trouble code is set from ASC-ECU (Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592559-S25956359272014011000000) ). Q: Is the check result normal? YES: Go to Step 4. NO: Carry out the troubleshooting for ASC-ECU (Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592559-S25956359272014011000000) ). Then go to Step 6 .
4. STEP 4. Check for other diagnostic trouble code. Check if the diagnostic trouble code is set from ETACS-ECU (Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592558-S22710001632014011000000) ). Q: Is the check result normal? YES: Go to Step 5. NO: Troubleshoot the set DTC (Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592558-S22710001632014011000000) ). Then go to Step 6 .
5. STEP 5. Check the TPMS transmitter acceleration. Check the acceleration value of each TPMS transmitter by the air pressure of data list (Refer to «DATA LIST REFERENCE TABLE»(ref-592550-S02351303142014011000000) ). OK: Acceleration value: 5G or less Q: Is the check result OK? YES: Replace the WCM and register ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). Then go to Step 6. NO: Replace the TPMS transmitter and register ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). Then go to Step 6.
6. STEP 6. Recheck for diagnostic trouble code. Turn the ignition switch to the "LOCK" (OFF) position. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC C1901 set? YES: Start over at Step 1 . NO: The procedure is complete.

The most likely causes for this DTC to set are

1. Low battery that is incorporated into the TPMS transmitter
2. Damaged wiring harness and connector
3. Registered IDs unmatched
4. Malfunction of TPMS transmitter
5. Malfunction of WCM

Required Special Tools

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

1. STEP 1. M.U.T.-III CAN bus diagnostics Use scan tool to diagnose the CAN bus lines. Q: Is the check result normal? YES: Go to Step 3 . NO: Repair the CAN bus lines (Refer to «CAN BUS DIAGNOSTICS TABLE»(ref-592553-S01090254822014011000000) ). On completion, go to Step 2.
2. STEP 2. Diagnostic trouble code recheck after resetting CAN bus lines Q: Is the DTC C1910, C1920, C1930, C1940, C1911, C1921, C1931 or C1941 set? YES: Go to Step 3. NO: The procedure is complete.
3. STEP 3. Check for TPMS transmitter. Identify the TPMS transmitter which the DTC is set by TPMS transmitter check (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). NOTE: The TPMS transmitter which cannot be checked may be faulty or the ID code may not be registered, thus do not replace it, but register the ID code. If the transmitter is faulty, it is replaced in the ID code registration process. Q: Are there any TPMS transmitters which are identified? YES: Among the checked TPMS transmitters, replace the TPMS transmitters to which the DTC is set. Then register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). Then go to Step 4. NO: Even when no transmitter is checked, register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). Then go to Step 4.
4. STEP 4. Diagnostic trouble code recheck after register the ID codes Turn the ignition switch to the "LOCK" (OFF) position. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC C1910, C1920, C1930, C1940, C1911, C1921, C1931 or C1941 set? YES: Replace the WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). Then start over at Step 1 . NO: The procedure is complete.

When the tire pressure included in the signal from the TPMS transmitter is less than the specified value, WCM sets this code.

The most likely causes for this DTC to set is

1. Drop of tire pressure
2. Loose TPMS transmitter mounting nut
3. Flat tire
4. TPMS transmitter malfunction
5. WCM malfunction
6. CAN-bus line malfunction

Required Special Tools

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

1. STEP 1. M.U.T.-III CAN bus diagnostics Use scan tool to diagnose the CAN bus lines. Q: Is the check result normal? YES: Go to Step 3 . NO: Repair the CAN bus lines (Refer to «CAN BUS DIAGNOSTICS TABLE»(ref-592553-S01090254822014011000000) ). On completion, go to Step 2.
2. STEP 2. Diagnostic trouble code recheck after resetting CAN bus lines Q: Is DTC C1912, C1922, C1932 or C1942 set? YES: Go to Step 3. NO: The procedure is complete.
3. STEP 3. Tire check Check that there is no abnormality for the items below. Flat tire Cracked tire Air leak from valve Loose TPMS transmitter mounting nut (Refer to «TPMS TRANSMITTER»(ref-592550-S25164672862014011000000) ). Q: Is the check result normal? YES: Go to Step 4. NO: Repair or replace it. Then go to Step 4.
4. STEP 4. Diagnostic trouble code check Turn the ignition switch to the "ON" position, and adjust the pressure to the recommended tire pressure. Check if the DTC is set. Q: Is DTC C1912, C1922, C1932 or C1942 set? YES: Go to Step 5. NO: The procedure is complete.
5. STEP 5. Diagnostic trouble code check Drive the vehicle for five minutes. NOTE: Even within 5 minutes, if the TPMS warning light goes out, finish the driving and perform the operation (2). Check if the DTC is set. Q: Is DTC C1912, C1922, C1932 or C1942 set? YES: Go to Step 6. NO: The procedure is complete.
6. STEP 6. Tire pressure check by M.U.T.-III Perform the transmitter check using the M.U.T.-III (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ), and check the tire pressure values of all the wheels. Check the tire pressure of all the wheels using the tire pressure gauge. Compare the measured value (1) with (2). OK: 20 kPa (2.9 psi) or less NOTE: Do not replace the TPMS transmitter which cannot be checked. Q: Is the check result OK? YES: Replace the WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). Then go to Step 9 . NO: Go to Step 7.
7. STEP 7. Tire pressure check by M.U.T.-III Perform the transmitter check using the M.U.T.-III (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ), and check the tire pressure values of all the wheels. Check the tire pressure of all the wheels using the tire pressure gauge. Compare the measured value (1) with (2). OK: 20 kPa (2.9 psi) or less Q: Is the check result OK? YES: Replace the WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). Then go to Step 9 . NO: Replace the TPMS transmitter and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). Then go to Step 8.
8. STEP 8. Recheck for diagnostic trouble code. Turn the ignition switch to the "LOCK" (OFF) position. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC C1912, C1922, C1932 or C1942 set? YES: Replace the WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). Then go to Step 9. NO: The procedure is complete.
9. STEP 9. Recheck for diagnostic trouble code. Turn the ignition switch to the "LOCK" (OFF) position. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC C1912, C1922, C1932 or C1942 set? YES: Start over at Step 1 . NO: The procedure is complete.

The most likely causes for this DTC to set are

1. Low battery that is incorporated into the TPMS transmitter
2. Damaged wiring harness and connector
3. Registered IDs unmatched
4. Malfunction of TPMS transmitter
5. Malfunction of WCM

Required Special Tools

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

1. STEP 1. M.U.T.-III CAN bus diagnostics Use scan tool to diagnose the CAN bus lines. Q: Is the check result normal? YES: Go to Step 3 . NO: Repair the CAN bus lines (Refer to «CAN BUS DIAGNOSTICS TABLE»(ref-592553-S01090254822014011000000) ). On completion, go to Step 2.
2. STEP 2. Diagnostic trouble code recheck after resetting CAN bus lines Q: Is the DTC C1913, C1923, C1933, C1943, C1914, C1924, C1934 or C1944 set? YES: Go to Step 3. NO: The procedure is complete.
3. STEP 3. Check for TPMS transmitter. Identify the TPMS transmitter which the DTC is set by TPMS transmitter check (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). NOTE: The TPMS transmitter which cannot be checked may be faulty or the ID code may not be registered, thus do not replace it, but register the ID code. If the transmitter is faulty, it is replaced in the ID code registration process. Q: Are there any TPMS transmitters which are identified? YES: Among the checked TPMS transmitters, replace the TPMS transmitters to which the DTC is set. Then register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). Then go to Step 4. NO: Even when no transmitter is checked, register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). Then go to Step 4.
4. STEP 4. Diagnostic trouble code recheck after register the ID codes Turn the ignition switch to the "LOCK" (OFF) position. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC C1913, C1923, C1933, C1943, C1914, C1924, C1934 or C1944 set? YES: Replace the WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). Then start over at Step 1 . NO: The procedure is complete.

When the TPMS transmitter(s) is in the OFF MODE, this code is set.

The most likely causes for this DTC to set are

1. OFF mode cancellation not performed
2. Damaged wiring harness and connector
3. Malfunction of TPMS transmitter
4. Malfunction of WCM

Required Special Tools

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

1. STEP 1. M.U.T.-III CAN bus diagnostics Use scan tool to diagnose the CAN bus lines. Q: Is the check result normal? YES: Go to Step 3 . NO: Repair the CAN bus lines (Refer to «CAN BUS DIAGNOSTICS TABLE»(ref-592553-S01090254822014011000000) ). On completion, go to Step 2.
2. STEP 2. Diagnostic trouble code recheck after resetting CAN bus lines Turn the ignition switch to the "LOCK" (OFF) position. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is DTC C1915, C1925, C1935 or C1945 set? YES: Go to Step 3. NO: The procedure is complete.
3. STEP 3. Diagnostic trouble code check Drive the vehicle for five minutes. Turn the ignition switch to the "LOCK" (OFF) position. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Are the all DTC C1915, C1925, C1935 and C1945 set? YES: Replace the TPMS transmitters of all the four wheels, and register ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). Then go to Step 4. NO: Register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). Then go to Step 4.
4. STEP 4. Diagnostic trouble code recheck after register the ID codes Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is DTC C1915, C1925, C1935 or C1945 set? YES: Replace the WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). Then start over at Step 1 . NO: The procedure is complete.

If the CAN-B circuit malfunctions, the WCM sets DTC U0019.

The CAN bus line may be defective

Required Special Tools

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

Scheme 18

1. STEP 1. Using scan tool MB991958, diagnose the CAN bus line 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. Refer to " «HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)»(ref-592552-S08493997622014011000000) ." Turn the ignition switch to the "ON" position. Diagnose the CAN bus line. 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. (Refer to «DIAGNOSIS»(ref-592553-S00268715102014011000000) ).
2. STEP 2. Recheck for diagnostic trouble code. Check again if the DTC is set to the WCM. Erase the DTC. Turn the ignition switch from "LOCK" (OFF) position to "ON" position. Check if DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). NO: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) ).

DIAGNOSTIC FUNCTION

If the signal from ETACS-ECU cannot be received, the WCM sets DTC U0141.

1. Malfunction of CAN bus line
2. Malfunction of WCM
3. Malfunction of ETACS-ECU

Required Special Tools

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

Scheme 19

1. STEP 1. Using scan tool MB991958, diagnose the CAN bus line. 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. Refer to " «HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)»(ref-592550-S18506152292014011000000) ." Turn the ignition switch to the "ON" position. Diagnose the CAN bus line. 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. (Refer to «DIAGNOSIS»(ref-592553-S00268715102014011000000) ).
2. STEP 2. Using scan tool MB991958, read the ETACS-ECU diagnostic trouble code. Check again if the DTC is set to the ETACS-ECU. Q: Is the DTC set? YES: Diagnose the ETACS-ECU (Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592558-S22710001632014011000000) ). NO: Go to Step 3.
3. STEP 3. Using scan tool MB991958, read the other system diagnostic trouble code. Check if DTC U0141 is set to the combination meter. Q: Is the DTC set? YES: Go to Step 4. NO: Go to Step 5 .
4. STEP 4. Recheck for diagnostic trouble code. Check again if the DTC is set to the WCM. Erase the DTC. Turn the ignition switch from "LOCK" (OFF) position to "ON" position. Check if DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Replace the ETACS-ECU. NO: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) ).
5. STEP 5. Recheck for diagnostic trouble code. Check again if the DTC is set to the WCM. Erase the DTC. Turn the ignition switch from "LOCK" (OFF) position to "ON" position. Check if DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). NO: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) ).

If no signal from SRS-ECU can be received, WCM sets diagnostic trouble code U0151.

1. The CAN bus line may be defective
2. The SRS-ECU may be defective
3. Malfunction of WCM

Required Special Tools

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

Scheme 20

1. STEP 1. Using scan tool MB991958, diagnose the CAN bus line. 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. Refer to " «HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)»(ref-592550-S18506152292014011000000) ." Turn the ignition switch to the "ON" position. Diagnose the CAN bus line. 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. (Refer to «DIAGNOSIS»(ref-592553-S00268715102014011000000) ).
2. STEP 2. Using scan tool MB991958, read the SRS-ECU diagnostic trouble code. Check again if the DTC is set to the SRS-ECU. Q: Is the DTC set? YES: Troubleshoot the SRS (Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592560-S19798167232014011000000) ). NO: Go to Step 3.
3. STEP 3. Using scan tool MB991958, read the other system diagnostic trouble code. Check if DTC U0151 is set to the combination meter. Q: Is the DTC set? YES: Go to Step 4. NO: Go to Step 5 .
4. STEP 4. Recheck for diagnostic trouble code. Check again if the DTC is set to the WCM. Erase the DTC. Turn the ignition switch from "LOCK" (OFF) position to "ON" position. Check if DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Replace the SRS-ECU. NO: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) ).
5. STEP 5. Recheck for diagnostic trouble code. Check again if the DTC is set to the WCM. Erase the DTC. Turn the ignition switch from "LOCK" (OFF) position to "ON" position. Check if DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). NO: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) ).

When the signals from occupant classification-ECU cannot be received, the WCM sets DTC U0154.

1. The CAN bus line may be defective.
2. The WCM may be defective.
3. The occupant classification-ECU may be defective.

Required Special Tools

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

Scheme 21

1. STEP 1. Using scan tool MB991958, diagnose the CAN bus line. 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. Refer to " «HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)»(ref-592550-S18506152292014011000000) ." Turn the ignition switch to the "ON" position. Diagnose the CAN bus line. 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. (Refer to «DIAGNOSIS»(ref-592553-S00268715102014011000000) ).
2. STEP 2. Using scan tool MB991958, read the SRS-ECU diagnostic trouble code. Check if DTC is set to the SRS-ECU. Q: Is the DTC set? YES: Troubleshoot the SRS. (Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592560-S29190877602014011000000) ). NO: Go to Step 3.
3. STEP 3. Using scan tool MB991958, read the other system diagnostic trouble code. Check if DTC U0154 is set to the combination meter. Q: Is the DTC set? YES: Go to Step 4. NO: Go to Step 5 .
4. STEP 4. Recheck for diagnostic trouble code. Check again if the DTC is set to the WCM. Erase the DTC. Turn the ignition switch from "LOCK" (OFF) position to "ON" position. Check if DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Replace the occupant classification-ECU. NO: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) ).
5. STEP 5. Recheck for diagnostic trouble code. Check again if the DTC is set to the WCM. Erase the DTC. Turn the ignition switch from "LOCK" (OFF) position to "ON" position. Check if DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). NO: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) ).

TROUBLE JUDGMENT

If no signal from the combination meter can be received, WCM sets DTC U0155.

1. Malfunction of CAN bus line
2. Combination meter malfunction
3. Malfunction of WCM

Required Special Tools

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

Scheme 22

1. STEP 1. Using scan tool MB991958, diagnose the CAN bus line. 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. Refer to " «HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)»(ref-592550-S18506152292014011000000) ." Turn the ignition switch to the "ON" position. Diagnose the CAN bus line. 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. (Refer to «DIAGNOSIS»(ref-592553-S00268715102014011000000) ).
2. STEP 2. Using scan tool MB991958, read the combination meter diagnostic trouble code. Check if DTC is set to the combination meter. Q: Is the DTC set? YES: Troubleshoot the combination meter (Refer to «DIAGNOSIS»(ref-592561-S11597034512014011000000) ). NO: Go to Step 3.
3. STEP 3. Using scan tool MB991958, read the A/C-ECU < vehicles with A/C > or heater control unit < vehicles without A/C > diagnostic trouble code. Check if the DTC U0155 is set to the A/C-ECU < vehicles with A/C > or heater control unit < vehicles without A/C >. Q: Is the DTC set? YES: Go to Step 4. NO: Go to Step 5 .
4. STEP 4. Recheck for diagnostic trouble code. Check again if the DTC is set to the WCM. Erase the DTC. Turn the ignition switch from "LOCK" (OFF) position to "ON" position. Check if DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Replace the combination meter. NO: The trouble can be an intermittent malfunction such as a poor connection or open circuit in the CAN bus lines between the combination meter and the WCM. (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) )
5. STEP 5. Recheck for diagnostic trouble code. Check again if the DTC is set to the WCM. Erase the DTC. Turn the ignition switch from "LOCK" (OFF) position to "ON" position. Check if DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). NO: The trouble can be an intermittent malfunction such as a poor connection or open circuit in the CAN bus lines between the combination meter and the WCM. (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) )

If the signal from A/C-ECU < vehicles with A/C > or heater control unit < vehicles without A/C > cannot be received, the WCM sets DTC U0164.

1. The CAN bus line may be defective.
2. The A/C-ECU < vehicles with A/C > or heater control unit < vehicles without A/C > may be defective.
3. The WCM may be defective.

Required Special Tools

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

Scheme 23

1. STEP 1. Using scan tool MB991958, diagnose the CAN bus line 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. Refer to " «HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)»(ref-592550-S18506152292014011000000) ." Turn the ignition switch to the "ON" position. Diagnose the CAN bus line. 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. (Refer to «DIAGNOSIS»(ref-592553-S00268715102014011000000) ).
2. STEP 2. Using scan tool MB991958, read the A/C < vehicles with A/C > or heater < vehicles without A/C > diagnostic trouble code Check if DTC is set to the A/C-ECU < vehicles with A/C > or heater control unit < vehicles without A/C >. Q: Is the DTC set? YES: Troubleshoot the A/C < vehicles with A/C > or heater < vehicles without A/C > (Refer to (vehicles without A/C) «DIAGNOSTIC TROUBLE CODE CHART»(ref-592562-S20723457832014011000000) or (vehicles with A/C) «DIAGNOSTIC TROUBLE CODE CHART»(ref-592563-S12432691712014011000000) ). NO: Go to Step 3.
3. STEP 3. Using scan tool MB991958, read the other system diagnostic trouble code. Check if DTC U0164 is set to the combination meter. Q: Is the DTC set? YES: Go to Step 4. NO: Go to Step 5 .
4. STEP 4. Recheck for diagnostic trouble code. Check again if the DTC is set to the WCM. Erase the DTC. Turn the ignition switch from "LOCK" (OFF) position to "ON" position. Check if DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Replace the A/C-ECU < vehicles with A/C > or heater control unit < vehicles without A/C >. NO: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) ).
5. STEP 5. Recheck for diagnostic trouble code. Check again if the DTC is set to the WCM. Erase the DTC. Turn the ignition switch from "LOCK" (OFF) position to "ON" position. Check if DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). NO: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) ).

When the signals from radio and CD player or CD changer cannot be received, the WCM sets DTC U0184.

1. The CAN bus line may be defective.
2. The WCM may be defective.
3. The radio and CD player or CD changer may be defective.

Required Special Tools

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

Scheme 24

1. STEP 1. Using scan tool MB991958, diagnose the CAN bus line. 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. Refer to " «HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)»(ref-592550-S18506152292014011000000) ." Turn the ignition switch to the "ON" position. Diagnose the CAN bus line. 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. (Refer to «DIAGNOSIS»(ref-592553-S00268715102014011000000) ).
2. STEP 2. Using scan tool MB991958, read the audio diagnostic trouble code. Check again if the DTC is set to the audio. Q: Is the DTC set? YES: Troubleshoot the radio and CD player. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592564-S36645085972014011000000) . NO: Go to Step 3.
3. STEP 3. Using scan tool MB991958, read the other system diagnostic trouble code. Check if DTC U0184 is set to the combination meter. Q: Is the DTC set? YES: Go to Step 4. NO: Go to Step 5 .
4. STEP 4. Recheck for diagnostic trouble code. Check again if the DTC is set to the WCM. Erase the DTC. Turn the ignition switch from "LOCK" (OFF) position to "ON" position. Check if DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Replace the radio and CD player or CD changer. NO: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) ).
5. STEP 5. Recheck for diagnostic trouble code. Check again if the DTC is set to the WCM. Erase the DTC. Turn the ignition switch from "LOCK" (OFF) position to "ON" position. Check if DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). NO: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) ).

If the signal from satellite radio tuner cannot be received, the WCM sets DTC U0195.

1. The satellite radio tuner may be defective.
2. The WCM may be defective.
3. The CAN bus may be defective.

Required Special Tools

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

Scheme 25

1. STEP 1. Using scan tool MB991958, diagnose the CAN bus line. 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. Refer to " «HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)»(ref-592550-S18506152292014011000000) ." Turn the ignition switch to the "ON" position. Diagnose the CAN bus line. 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. (Refer to «DIAGNOSIS»(ref-592553-S00268715102014011000000) ).
2. STEP 2. Using scan tool MB991958, read the satellite radio tuner diagnostic trouble code. Check if DTC is set to the satellite radio tuner. Q: Is the DTC set? YES: Troubleshoot the satellite radio. (Refer to «DIAGNOSIS»(ref-592565-S22205269402014011000000) .) NO: Go to Step 3.
3. STEP 3. Using scan tool MB991958, read the other system diagnostic trouble code. Check if DTC U0195 is set to the combination meter. Q: Is the DTC set? YES: Go to Step 4. NO: Go to Step 5 .
4. STEP 4. Recheck for diagnostic trouble code. Check again if the DTC is set to the WCM. Erase the DTC. Turn the ignition switch from "LOCK" (OFF) position to "ON" position. Check if DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Replace the satellite radio tuner. NO: The trouble can be an intermittent malfunction such as a poor connection or open circuit in the CAN bus lines between the satellite radio tuner and the WCM. (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) )
5. STEP 5. Recheck for diagnostic trouble code. Check again if the DTC is set to the WCM. Erase the DTC. Turn the ignition switch from "LOCK" (OFF) position to "ON" position. Check if DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). NO: The trouble can be an intermittent malfunction such as a poor connection or open circuit in the CAN bus lines between the satellite radio tuner and the WCM. (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) )

When the signals from audio visual navigation unit cannot be received, the WCM sets DTC U0245.

1. The CAN bus line may be defective.
2. The WCM may be defective.
3. The audio visual navigation unit may be defective.

Required Special Tools

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

Scheme 26

1. STEP 1. Using scan tool MB991958, diagnose the CAN bus line 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. Refer to " «HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)»(ref-592550-S18506152292014011000000) ." Turn the ignition switch to the "ON" position. Diagnose the CAN bus line. 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. (Refer to «DIAGNOSIS»(ref-592553-S00268715102014011000000) ).
2. STEP 2. Using scan tool MB991958, read the audio visual navigation unit diagnostic trouble code. Check if DTC is set to the audio visual navigation unit. Q: Is the DTC set? YES: Troubleshoot the MMCS. (Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592566-S10168943422014011000000) .) NO: Go to Step 3.
3. STEP 3. Using scan tool MB991958, read the other system diagnostic trouble code. Check if DTC U0245 is set to the combination meter. Q: Is the DTC set? YES: Go to Step 4. NO: Go to Step 5 .
4. STEP 4. Recheck for diagnostic trouble code. Check again if the DTC is set to the WCM. Erase the DTC. Turn the ignition switch from "LOCK" (OFF) position to "ON" position. Check if DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Replace the audio visual navigation unit. NO: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) ).
5. STEP 5. Recheck for diagnostic trouble code. Check again if the DTC is set to the WCM. Erase the DTC. Turn the ignition switch from "LOCK" (OFF) position to "ON" position. Check if DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). NO: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) ).

TPMS DTC SET CONDITION

WCM receives the wheel speed information from ASC-ECU via the CAN-bus line. If WCM cannot receive the information about the wheel speed sensor from ASC-ECU, this code is set.

The most likely causes for this DTC to set are

1. Damaged wiring harness and connector
2. Malfunction of ASC-ECU
3. Malfunction of WCM
4. Malfunction of ETACS-ECU

Required Special Tools

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

1. STEP 1. M.U.T.-III CAN bus diagnostics Use scan tool to diagnose the CAN bus lines. Q: Is the check result normal? YES: Go to Step 3 . NO: Repair the CAN bus lines (Refer to «CAN BUS DIAGNOSTICS TABLE»(ref-592553-S01090254822014011000000) ). On completion, go to Step 2.
2. STEP 2. Diagnostic trouble code recheck after resetting CAN bus lines Turn the ignition switch to the "LOCK" (OFF) position. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC U1412 set? YES: Go to Step 3. NO: The procedure is complete.
3. STEP 3. Check for other diagnostic trouble code. Check if the diagnostic trouble code is set from ASC-ECU (Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592559-S25956359272014011000000) ). Q: Is the check result normal? YES: Go to Step 4. NO: Carry out the troubleshooting for ASC-ECU (Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592559-S25956359272014011000000) ). Then go to Step 5 .
4. STEP 4. Check for other diagnostic trouble code. Check if the diagnostic trouble code is set from ETACS-ECU (Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592558-S22710001632014011000000) ). Q: Is the check result normal? YES: Replace the WCM and register ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). Then go to Step 5. NO: Carry out the troubleshooting (Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592558-S22710001632014011000000) ). Then go to Step 5.
5. STEP 5. Recheck for diagnostic trouble code. Check again if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC U1412 reset? YES: Start over at Step 1 . NO: The procedure is complete.

If the vehicle information data is not registered to the combination meter, the WCM sets DTC U1415.

1. The CAN bus line may be defective.
2. The WCM may be defective.
3. The ETACS-ECU may be defective.

Required Special Tools

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

Scheme 27

1. STEP 1. Using scan tool MB991958, diagnose the CAN bus line. 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. Refer to " «HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)»(ref-592550-S18506152292014011000000) ." Turn the ignition switch to the "ON" position. Diagnose the CAN bus line. 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. (Refer to «DIAGNOSIS»(ref-592553-S00268715102014011000000) ).
2. STEP 2. Using scan tool MB991958, read the ETACS-ECU diagnostic trouble code. Check if a coding-related DTC is set to the ETACS-ECU. Q: Is the DTC set? YES: Troubleshoot the ETACS-ECU. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592558-S22710001632014011000000) . NO: Go to Step 3.
3. STEP 3. Recheck for diagnostic trouble code. Check again if the DTC is set to the WCM. Erase the DTC. Turn the ignition switch from "LOCK" (OFF) position to "ON" position. Check if DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). NO: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) ).

DTC SET CONDITIONS

WCM communicates with ETACS-ECU via CAN bus lines. This diagnostic trouble code is set when the vehicle information received from the ETACS-ECU is invalid.

Required Special Tools

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

Scheme 28

1. STEP 1. Using scan tool MB991958, diagnose the CAN bus line. 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. Refer to " «HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)»(ref-592550-S18506152292014011000000) ." Turn the ignition switch to the "ON" position. Diagnose the CAN bus line. 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. (Refer to «DIAGNOSIS»(ref-592553-S00268715102014011000000) ).
2. STEP 2. Using scan tool MB991958, read the other system diagnostic trouble code. Check if DTC is set to the ETACS-ECU or engine control module. Q: Is the DTC set? YES (DTC is set to ETACS-ECU.): Troubleshoot the ETACS. (Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592558-S22710001632014011000000) .) YES (DTC is set to the engine control module.): Troubleshoot the MFI system. (Refer to «DIAGNOSIS»(ref-592554-S34172480472014011000000) < 2.0-Non turbo > or «DIAGNOSIS»(ref-592555-S21340300262014011000000) < 2.0-Turbo > or «DIAGNOSIS»(ref-592556-S26682004632014011000000) < 2.4L Engine >.) NO: Go to Step 3.
3. STEP 3. Check part number of ETACS-ECU Check the part number of ETACS-ECU. OK: 8637A465 Q: Is the check result normal? YES: Go to Step 4. NO: Replace ETACS-ECU.
4. STEP 4. Check part number of WCM Check the part number of WCM. OK: MN141352 Q: Is the check result normal? YES: Go to Step 5. NO: Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ).
5. STEP 5. Recheck for diagnostic trouble code. Check again if the DTC is set to the WCM. Erase the DTC. Turn the ignition switch from "LOCK" (OFF) position to "ON" position. Check if DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). NO: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) ).

TROUBLE SYMPTOM CHART

TROUBLE SYMPTOM CHART

Inspection Procedure 1: Scan Tool Cannot Communicate With WCM

1. Malfunction of the power supply or ground of WCM
2. Malfunction of CAN bus line
3. Malfunction of WCM

Required Special Tools

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

Scheme 29

1. STEP 1. Using scan tool MB991958, diagnose the CAN bus line. 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. Refer to " «HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)»(ref-592550-S18506152292014011000000) ." Turn the ignition switch to the "ON" position. Diagnose the CAN bus line. 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. (Refer to «DIAGNOSIS»(ref-592553-S00268715102014011000000) ).
2. STEP 2. Check the power supply circuit and the ground circuit to WCM. Refer to «INSPECTION PROCEDURE 4 "ABNORMALITY IN WCM POWER SUPPLY AND GROUND CIRCUITS.»(ref-592550-S01375859012014011000000) " . Q: Are the power supply circuit and the ground circuit to WCM in good condition? YES: Go to Step 3. NO: Repair the power supply circuit and the ground circuit to WCM.
3. STEP 3. Retest the system Check if scan tool can communicate with WCM. Q: Does the scan tool cannot communicate with WCM in good condition? YES: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) ). NO: Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ).

1. Malfunction of the ignition key
2. Damaged wiring harness and connectors
3. Malfunction of WCM
4. Ignition key registered for other vehicle

Required Special Tools

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

1. STEP 1. Check the ignition key inserted in the key cylinder for interference. Q: Are there other ignition keys or anything that interferes with the communication (things that generate radio waves such as magnets and an air-cleaning device that has a power plug) near the ignition key inserted in the key cylinder? YES: Move away or remove other ignition keys or things that interfere with the communication (things that generate radio waves such as magnets and a air-cleaning device that has a power plug) near the ignition key. Then, go to step 2. NO: Go to Step 3 .
2. STEP 2. Retest the system Check that the ignition key can be registered. Q: Is the ignition key that cannot be registered using scan tool? YES: Go to Step 3. NO: The procedure is complete.
3. STEP 3. Check which ignition key cannot be registered. Q: Can any one of the ignition keys be registered? YES (Only some keys): Replace the key that cannot be registered and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). After registering the ID codes, go to Step 5 . NO (All keys): Go to Step 4.
4. STEP 4. Retest the system Check the scan tool screen when the key was not able to be registered. Q: Is the error message of scan tool screen "Abnormality in key"? YES (Abnormality in key): Carry out DTC B1A25: Key ID unmatched and DTC B1A35: Transponder read error (Refer to «DTC B1A25: KEY ID UNMATCHED»(ref-592550-S14498323942014011000000) , «DTC B1A35: TRANSPONDER READ ERROR»(ref-592550-S30710544902014011000000) ). Then, go to Step 5. NO (ECU internal error): Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ).
5. STEP 5. Retest the system Check that the ignition key can be registered. Q: Is the ignition key that cannot be registered using scan tool? YES: Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ). NO: The procedure is complete.

1. Malfunction of battery
2. Malfunction of the MFI system
3. Malfunction of WCM
4. Malfunction of CAN bus line
5. Malfunction of the transponder
6. VIN not programmed

Required Special Tools

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

Scheme 30

1. STEP 1. Check the battery voltage. Measure the battery voltage when cranking. The voltage should measure 8 volt or more. Q: Is the measured voltage 8 volt or more? YES: Go to Step 2. NO: Check the battery. (Refer to «BATTERY TEST»(ref-592567-S28765070892014011000000) .)
2. STEP 2. Using scan tool MB991958, diagnose the CAN bus line. 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. Refer to " «HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)»(ref-592550-S18506152292014011000000) ." Turn the ignition switch to the "ON" position. Diagnose the CAN bus line. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the CAN bus line found to be normal? YES: Go to Step 3. NO: Repair the CAN bus line. (Refer to «DIAGNOSIS»(ref-592553-S00268715102014011000000) ).
3. STEP 3. Using scan tool MB991958, read the MFI system diagnostic trouble code. Check if DTC is set to the engine control module. Q: Is the DTC set? YES: Troubleshoot the MFI system. (Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592554-S34172480472014011000000) < 2.0L Engine Non-turbo > or «DIAGNOSTIC TROUBLE CODE CHART»(ref-592555-S21340300262014011000000) < 2.0L Engine Turbo > or «DIAGNOSTIC TROUBLE CODE CHART»(ref-592556-S26682004632014011000000) < 2.4L Engine >.) NO: Go to Step 4.
4. STEP 4. Using scan tool MB991958, read the WCM diagnostic trouble code. Check if DTC is set to the WCM. Q: Is the DTC set? YES: Troubleshoot the WCM. (Refer to «STANDARD FLOW OF DIAGNOSTIC TROUBLESHOOTING»(ref-592550-S24253379582014011000000) .) NO: Go to Step 5.
5. STEP 5. Check that the engine starts. Q: Does the engine start? YES: The procedure is complete. NO: Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592554-S34172480472014011000000) < 2.0L Engine Non-turbo > or «DIAGNOSTIC TROUBLE CODE CHART»(ref-592555-S21340300262014011000000) < 2.0L Engine Turbo > or «DIAGNOSTIC TROUBLE CODE CHART»(ref-592556-S26682004632014011000000) < 2.4L Engine >. When the cause of the failure cannot be tracked down by the troubleshooting in < 2.0L Engine Non-turbo >, < 2.0L Engine Turbo > or < 2.4L Engine >, replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ).

Inspection Procedure 4: Abnormality In WCM Power Supply And Ground Circuits

Scheme 31

1. Damaged wiring harness and connectors
2. Malfunction of the WCM

Required Special Tools

1. MB992006: Extra fine probe
2. MB991223: Harness set

Scheme 32

Scheme 33

Scheme 34

1. STEP 1. Check WCM connector C-09 and ETACS-ECU connector C-317 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is the WCM connector C-09 and ETACS-ECU connector C-317 in good condition? YES: Go to Step 2. NO: Repair the defective connector.
2. STEP 2. Check the wiring harness between WCM connector C-09 (terminal No. 6, 9) and the ETACS-ECU connector C-317 (terminal No. 10, 5) for open circuit. Disconnect WCM connector C-09 and ETACS-ECU connector C-317, and check the wiring harness. Check the wiring harness between WCM connector C-09 (terminal No. 6) and ETACS-ECU connector C-317 (terminal No. 10) OK: Continuity exists (2 ohms or less) Check the wiring harness between WCM connector C-09 (terminal No. 9) and ETACS-ECU connector C-317 (terminal No. 5) OK: Continuity exists (2 ohms or less) NOTE: Also check joint connector (1) C-03 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If joint connector (1) C-03 is damaged, repair or replace the damaged component(s) as described in «HARNESS CONNECTOR INSPECTION»(ref-592557-S11382637462014011000000) . Q: Is the wiring harness between WCM connector C-09 and the ETACS-ECU connector C-317 in good condition? YES: Go to Step 3. NO: Repair the wiring harness between WCM connector C-09 (terminal No. 6, 9) and ETACS-ECU connector C-317 (terminal No. 10, 5).
3. STEP 3. Check the wiring harness between the WCM connector C-09 (terminal No. 7) and the ground for open circuit. Disconnect the connector and measure the resistance at the wiring harness side. Turn the ignition switch to the ON position. Measure the resistance between terminal No. 7 and the ground. OK: Continuity exists (2 ohms or less) Q: Is the wiring harness between WCM connector C-09 and the ground in good condition? YES: Go to Step 4. NO: Repair the wiring harness between WCM connector C-09 (terminal No. 7) and ground.
4. STEP 4. Retest the system Q: Does the abnormality in WCM power supply and ground circuits in good condition? YES: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) ). NO: Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ).

Inspection Procedure 5: Keyless Entry System Does Not Work

1. The key reminder switch may be defective
2. The door switches may be defective
3. The liftgate latch assembly may defective < LANCER SPORTBACK >
4. The keyless entry transmitter may be defective
5. The WCM may be defective
6. The ETACS-ECU may be defective
7. The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector
8. Option coding information

Required Special Tools

1. MB992006: Extra fine probe
2. MB991223: Harness set
3. 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

Scheme 35

Scheme 36

Scheme 37

1. STEP 1. Using scan tool MB991958, check for CAN bus the diagnostic trouble code. 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. Refer to " «HOW TO CONNECT SCAN TOOL (M.U.T.-III)»(ref-592550-S18506152292014011000000) ." Turn the ignition switch to the "ON" position. Check whether the CAN bus lines related DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Repair the CAN bus line (Refer to «CAN BUS DIAGNOSTICS TABLE»(ref-592553-S01090254822014011000000) ). NO: Go to Step 2.
2. STEP 2. Using scan tool MB991958, read the diagnostic trouble code. 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. Refer to " «HOW TO CONNECT SCAN TOOL (M.U.T.-III)»(ref-592550-S18506152292014011000000) ." Turn the ignition switch to the "ON" position. Check whether the ETACS-ECU related DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Diagnose the ETACS-ECU. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592550-S22995444002014011000000) . NO: Go to Step 3.
3. STEP 3. Check the power supply system With the ignition switch in the LOCK (OFF) position, check if the following function operates normally: Hazard warning light Q: Is the check result normal? YES: Go to Step 4. NO: Refer to «MALFUNCTION OF ETACS-ECU POWER SUPPLY CIRCUIT»(ref-592558-S12242195632014011000000) .
4. STEP 4. Verify the central door locking system. Check that the central door locking system works normally. Q: Is the check result normal? YES: Go to Step 5. NO: Refer to «TROUBLESHOOTING»(ref-592568-S03319160152014011000000) .
5. STEP 5. Using scan tool MB991958, check data list. Check the signals related to the keyless entry system operation. 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. Refer to " «HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)»(ref-592550-S18506152292014011000000) ." Turn the ignition switch to the "LOCK" (OFF) position. Check the ETACS data list. Close the driver's door. Close the passenger's door. Close the RH-side rear door. Close the LH-side rear door. Close the liftgate < LANCER SPORTBACK >. Remove the ignition key from the ignition key cylinder. DOOR SWITCH CONDITIONS Item No. Item name Normal condition Item 256 Dr door ajar switch Close Item 257 As door ajar switch Close Item 258 RR door ajar switch Close Item 259 RL door ajar switch Close Item 260 Trunk/gate trunk ajar switch Close Item 264 Handle lock switch Key in --> Key out OK: Normal condition are displayed. Q: Are the check result normal? YES < Normal conditions are displayed for all the items. >: Go to Step 6. NO < Normal condition is not displayed for item No. 256. >: Refer to . «INSPECTION PROCEDURE 5: ETACS-ECU DOES NOT RECEIVE ANY SIGNAL FROM THE FRONT DOOR SWITCH (LH)»(ref-592558-S40064498912014011000000) . NO < Normal condition is not displayed for item No. 257. >: Refer to «INSPECTION PROCEDURE 6: ETACS-ECU DOES NOT RECEIVE ANY SIGNAL FROM THE FRONT DOOR SWITCH (RH)»(ref-592558-S00823668122014011000000) . NO < Normal condition is not displayed for item No. 258. >: Refer to «INSPECTION PROCEDURE 8: ETACS-ECU DOES NOT RECEIVE ANY SIGNAL FROM THE REAR DOOR SWITCH (RH)»(ref-592558-S13389163032014011000000) . NO < Normal condition is not displayed for item No. 259. >: Refer to «INSPECTION PROCEDURE 7: ETACS-ECU DOES NOT RECEIVE ANY SIGNAL FROM THE REAR DOOR SWITCH (LH)»(ref-592558-S31108027912014011000000) . NO < Normal condition is not displayed for item No. 260 (LANCER SPORTBACK). >: Refer to «INSPECTION PROCEDURE 9: ETACS-ECU DOES NOT RECEIVE ANY SIGNAL FROM THE LIFTGATE SWITCH. < LANCER SPORTBACK >»(ref-592558-S30680950372014011000000) . NO < Normal condition is not displayed for item No. 264. >: Refer to «INSPECTION PROCEDURE 3: ETACS-ECU DOES NOT RECEIVE ANY SIGNAL FROM THE KEY REMINDER SWITCH»(ref-592558-S14332117072014011000000) . .
6. STEP 6. Retest the system. Check if the keyless entry system works normally. Q: Is the check result normal? YES: Intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) ). NO: Replace WCM and register the ID codes (Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) ).

Inspection Procedure 6: Keyless Entry Hazard Light Answerback Function, The Dome Light Answerback Function Or The Horn Answerback Function Does Not Work Normally

1. The turn signal lights may be defective
2. The dome light may be defective
3. The horn may be defective
4. The ETACS-ECU may be defective
5. The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector

1. STEP 1. Verify the operation hazard warning light. Check that the hazard warning light illuminate normally. Q: Is the check result normal? YES: Go to Step 2. NO: Refer to «INSPECTION PROCEDURE 1: "HAZARD WARNING LIGHT DOES NOT ILLUMINATE»(ref-592569-S10035702222014011000000) ."
2. STEP 2. Verify the operation of the dome light. Check that the dome lights illuminate normally. Q: Is the check result normal? YES: Go to Step 3. NO: Refer to «INSPECTION PROCEDURE 1 "THE FRONT DOME LIGHT DOES NOT ILLUMINATE NORMALLY»(ref-592570-S31813693852014011000000) ." or «INSPECTION PROCEDURE 2 "THE REAR DOME LIGHT DOES NOT ILLUMINATE NORMALLY»(ref-592570-S29700339852014011000000) ."
3. STEP 3. Verify the horn. Check that the horn normally. Q: Is the check result normal? YES: Go to Step 4. NO: Replace the horn (Refer to «REMOVAL AND INSTALLATION»(ref-592571-S02847896412014011000000) ).
4. STEP 4. Check the operation of the keyless entry system. Operate the transmitter and check that all doors lock and unlock. Q: Is the check result normal? YES: Go to Step 5. NO: Refer to «INSPECTION PROCEDURE 5: "KEYLESS ENTRY SYSTEM DOES NOT WORK»(ref-592550-S35212663662014011000000) ."
5. STEP 5. Check the customize function (Hazard light answerback). Check that any one of the followings other than "Lock: 0, Unlock: 0" is set for "Hazard answerback" with a customization function. Lock: 1, Unlock: 2 Lock: 1, Unlock: 0 Lock: 0, Unlock: 2 Lock: 2, Unlock: 1 Lock: 2, Unlock: 0 Lock: 0, Unlock: 1 Q: Is the check result normal? YES: Go to Step 6. NO: Set "Hazard answerback" to any one other than "Lock: 0, Unlock: 0" with a customization function (Refer to «CUSTOMIZATION FUNCTION»(ref-592550-S28751554082014011000000) ).
6. STEP 6. Check the customize function (Horn answerback). Check that any one of the followings other than "Not sound horn" is set for "Horn chirp by keyless" with a customization function. Lock any time W lock any time Q: Is the check result normal? YES: Go to Step 7. NO: Set "Horn chirp by keyless" to any one other than "Not sound horn" with a customization function (Refer to «CUSTOMIZATION FUNCTION»(ref-592550-S28751554082014011000000) ).
7. STEP 7. Check of the troubles Check if the keyless entry answerback function works normally. Q: Is the check result normal? YES: Intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) ). NO: Replace ETACS-ECU.

Inspection Procedure 7: The Timer Lock Function Does Not Work After The Doors Have Been Unlocked By The Keyless Entry System

1. The keyless entry transmitter may be defective
2. The ETACS-ECU may be defective
3. The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector

1. STEP 1. Check the operation of the keyless entry system. Operate the transmitter and check that all doors lock and unlock. Q: Is the check result normal? YES: Go to Step 2. NO: Refer to «INSPECTION PROCEDURE 5: "KEYLESS ENTRY SYSTEM DOES NOT WORK»(ref-592550-S35212663662014011000000) ."
2. STEP 2. Check the customize function. The "Timer lock timer" has been set to one of the followings with the customization function. Check if the doors are locked at the set period. 30 sec 60 sec 120 sec 180 sec Q: Is the check result normal? YES: Intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) ). NO: Replace ETACS-ECU.

Inspection Procedure 8: The Trunk Is Not Opened When The Keyless Entry Transmitter "TRUNK" Button Is Operated - LANCER

Scheme 38

1. The keyless entry transmitter may be defective
2. The WCM may be defective
3. The ETACS-ECU may be defective
4. The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector

Required Special Tools

1. MB992006: Extra fine probe
2. MB991223: Harness set
3. 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

Scheme 39

Scheme 40

1. STEP 1. Check the operation of the keyless entry system. Operate the transmitter and check that all doors lock and unlock. Q: Is the check result normal? YES: Go to Step 2. NO: Refer to «INSPECTION PROCEDURE 5: "KEYLESS ENTRY SYSTEM DOES NOT WORK»(ref-592550-S35212663662014011000000) ."
2. STEP 2. Using scan tool MB991958, check for diagnostic trouble code. 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. Refer to " «HOW TO CONNECT SCAN TOOL (M.U.T.-III)»(ref-592550-S18506152292014011000000) ." Turn the ignition switch to the "ON" position. Check whether the ETACS-ECU related DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Diagnose the ETACS-ECU. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592550-S22995444002014011000000) . NO: Go to Step 3.
3. STEP 3. Check trunk lid lock actuator connector F-12 and ETACS-ECU connector C-311 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is trunk lid lock actuator connector F-12 and ETACS-ECU connector C-311 in good condition? YES: Go to Step 4. NO: Repair or replace the damaged component(s). Refer to «HARNESS CONNECTOR INSPECTION»(ref-592557-S11382637462014011000000) .
4. STEP 4. Check the trunk lid latch assembly. Remove the trunk lid latch assembly. Refer to «REMOVAL AND INSTALLATION»(ref-592572-S05830018242014011000000) . TRUNK LID LATCH OPERATION Lever position Battery connection Lever operation At the "LOCK" position Connect terminal No. 2 and the negative battery terminal. Connect terminal No. 3 and the positive battery terminal. The lever moves from the "LOCK" position to the "UNLOCK" position. Q: Is the trunk lid actuator normal? YES: Go to Step 5. NO: Replace the trunk lid latch assembly.
5. STEP 5. Check the ground circuit to the trunk lid lock actuator. Measure the resistance at trunk lid lock actuator connector F-12. Disconnect trunk lid lock actuator connector F-12 and measure the resistance available at the wiring harness side of the connector. Measure the resistance value between terminal 2 and ground. The resistance should be 2 ohms or less. Q: Is the measured resistance 2 ohms or less? YES: Go to Step 7 . NO: Go to Step 6.
6. STEP 6. Check the wiring harness between trunk lid lock actuator connector F-12 (terminal 2) and ground. Check the ground wires for open circuit. NOTE: Also check intermediate connector F-23 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector F-23 is damaged, repair or replace the damaged component(s) as described in «HARNESS CONNECTOR INSPECTION»(ref-592557-S11382637462014011000000) . Q: Is the wiring harness between trunk lid lock actuator connector F-12 (terminal 2) and ground in good condition? YES: No action is necessary and testing is complete. NO: The wiring harness may be damaged or the connector(s) may have loose, corroded or damaged terminals, or terminals pushed back in the connector. Repair the wiring harness as necessary. Check that the trunk lid opener function works normally.
7. STEP 7. Check the wiring harness between trunk lid lock actuator connector F-12 (terminal 3) and ETACS-ECU connector C-311 (terminal 1). Check the input/output line for open or short circuit. NOTE: Also check intermediate connectors D-14, F-23 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connectors D-14, F-23 is damaged, repair or replace the damaged component(s) as described in «HARNESS CONNECTOR INSPECTION»(ref-592557-S11382637462014011000000) . Q: Is the wiring harness between trunk lid lock actuator connector F-12 (terminal 3) and ETACS-ECU connector C-311 (terminal 1) in good condition? YES: Go to Step 8. NO: The wiring harness may be damaged or the connector(s) may have loose, corroded or damaged terminals, or terminals pushed back in the connector. Repair the wiring harness as necessary. Check that the trunk lid opener function works normally.
8. STEP 8. Retest the system. Check if the keyless entry system (trunk lid open) works normally. Q: Is the check result normal? YES: Intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) ). NO: Replace the ETACS-ECU. When the ETACS-ECU is replaced, register the keyless ID. Refer to «ID CODES REGISTRATION PROCEDURE»(ref-592550-S17773111812014011000000) .

Inspection Procedure 9: Power Door Locks With Selective Unlocking Does Not Work

COMMENT ON TROUBLE SYMPTOM

If the keyless entry system works normally and only the power door locks with selective unlocking does not work normally, ETACS-ECU may be defective. In addition, it is possible that the function has been disabled by using the customization function.

DIAGNOSTIC PROCEDURE

1. STEP 1. Check the customization Q: Are the power door locks with selective unlocking enabled by the customization function? YES: Go to Step 2. NO: Set the power door locks with selective unlocking to "Enabled" by using the customization function. Refer to «CUSTOMIZATION FUNCTION»(ref-592550-S28751554082014011000000) .
2. STEP 2. Keyless entry system operation check Press the unlock button of the transmitter and check that only the driver's door is unlocked. Then, press the unlock button once again within 2 seconds after that to check that the front passenger's door, rear doors, and liftgate < LANCER SPORTBACK > are unlocked. Q: Does the keyless entry system work normally? YES: Go to Step 3. NO (Only the driver's door is not unlocked.): Replace the ETACS-ECU. NO (The driver's door, front passenger's door, rear doors, and liftgate < LANCER SPORTBACK > are not unlocked.): Refer to «INSPECTION PROCEDURE 5: "KEYLESS ENTRY SYSTEM DOES NOT WORK»(ref-592550-S35212663662014011000000) ."
3. STEP 3. Check of the troubles Check that the power door locks with selective unlocking works normally. Q: Is the check result normal? YES: Intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) ). NO: Replace ETACS-ECU.

Scheme 41

ECU TERMINALS AND CONDITIONS

INSPECTION OF KEYLESS ENTRY TIMER LOCK FUNCTION

Attempt to unlock the doors and the liftgate < LANCER SPORTBACK > by using the transmitter. If the doors and the liftgate < LANCER SPORTBACK > are not locked within 30 seconds, carry out diagnosis. Note that the doors will not be locked if the ignition key is inserted within the 30-second period, or the doors and the liftgate < LANCER SPORTBACK > are opened. Refer to TROUBLE SYMPTOM CHART .

Note. The operation time of the keyless entry timer lock function can be set using the customization function. Confirm the operation time before performing the diagnosis. Refer to CUSTOMIZATION FUNCTION .

POWER DOOR LOCKS WITH SELECTIVE UNLOCKING INSPECTION

Press the unlock button on the transmitter once to unlock only the driver's door. Press the unlock button of the transmitter once again within 2 seconds after the driver's door is unlocked, and check that the front passenger's door, rear doors, and liftgate < LANCER SPORTBACK > are unlocked. If they are not unlocked, carry out troubleshooting. Refer to TROUBLE SYMPTOM CHART .

Note. Press the unlock button on the transmitter once to unlock only the driver's door. When the unlock button of the transmitter is pressed once again more than 2 seconds after the driver's door is unlocked, only the driver's door is unlocked.

Note. The setting of the power door locks with selective unlocking can be changed using the customization function. Confirm which setting is activated before performing these checks. Refer to CUSTOMIZATION FUNCTION .