Radio and CD Player
DTC U1415: Coding Not Completed/Data FailCAUTION:
- If DTC U1415 is set, be sure to diagnose the CAN bus line.
- When replacing the ECU, always check that the communication circuit is normal.
TROUBLE JUDGMENT
When the vehicle information data is not registered to the radio and CD player, the radio and CD player sets the diagnostic trouble code No.U1415.
COMMENTS ON TROUBLE SYMPTOM
The radio and CD player, ETACS-ECU, or CAN bus line may have a problem.
TROUBLESHOOTING HINTS
- The CAN bus line may be defective.
- The radio and CD player may be defective.
- The ETACS-ECU may be defective.
DIAGNOSIS
Required Special Tools:
- 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
STEP 1. Using scan tool MB991958, diagnose the CAN bus line.
Use scan tool MB991958 to diagnose the CAN bus lines.
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.
1. Connect scan tool MB991958. Refer to "How to connect the Scan Tool (M.U.T.-III)." Scan Tool Connecting
2. Turn the ignition switch to "ON" position.
3. Diagnose the CAN bus line.
Q : Is the check result normal
YES : Go to Step 2.
NO : Repair the CAN bus line. (Refer to Controller Area Network, Diagnosis.) On completion, go to Step 2.
STEP 2. Using scan tool MB991958, read the other system DTC.
Check if DTC is set to the ETACS-ECU.
Q : Is the DTC set?
YES : Diagnose the ETACS-ECU. Diagnostic Trouble Code Descriptions
NO : Go to Step 3.
STEP 3. Recheck for diagnostic trouble code.
Check again if the DTC is set to the radio and CD player.
1. Erase the DTC.
2. Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
3. Check if the DTC is set.
Q : Is the DTC set?
YES : Replace the radio and CD player.
NO : The trouble can be an intermittent malfunction (Refer to General (Body and Chassis), How to use Troubleshooting/inspection Service Points, How to Cope with Intermittent Malfunction).