Mitsubishi Outlander: DTC No.U0001, U0100, U0101, U0121, U0126, U0141, U0401, U0428, U0431, U1415, U1417, U1425, U1427, U1428
Code No.U0001: Bus-Off
CAUTION
- If there is any problem in the CAN bus lines, an incorrect diagnostic trouble code may be set. Prior to this diagnosis, diagnose the CAN bus lines.
- Whenever the ECU is replaced, ensure that the CAN bus lines are normal.
DIAGNOSTIC TROUBLE CODE SET CONDITIONS
The code is set when AWC-ECU ceases (bus-off).
PROBABLE CAUSES
- The CAN bus line is defective.
- Malfunction of AWC-ECU
- ECU malfunction of other system
DIAGNOSTIC PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics.
Use scan tool to perform the CAN bus diagnosis.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus lines. After repairing the CAN bus line, go to Step 2.
STEP 2. Check whether the diagnostic trouble code is reset.
Q: Is diagnostic trouble code No.U0001 set? YES : Replace the AWC-ECU. Then go to Step 3.
NO : Intermittent malfunction.
STEP 3. Check whether the diagnostic trouble code is reset.
Q: Is diagnostic trouble code No.U0001 set? YES : Return to Step 1.
NO : This diagnosis is complete.
Code No.U0100: Engine Time-out Error
CAUTION
- If there is any problem in the CAN bus lines, an incorrect diagnostic trouble code may be set. Prior to this diagnosis, diagnose the CAN bus lines.
- Whenever the ECU is replaced, ensure that the CAN bus lines are normal.
OPERATION
AWC-ECU communicates with the ECM via the CAN bus lines.
DIAGNOSTIC TROUBLE CODE SET CONDITIONS
The code is set when the signal sent from the ECM cannot be received for a certain period.
PROBABLE CAUSES
- Malfunction of the CAN bus line
- Malfunction of power supply circuit system (ECM)
- Malfunction of ECU (ECM)
- Malfunction of AWC-ECU
DIAGNOSTIC PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics.
Use scan tool to perform the CAN bus diagnosis.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus lines. After repairing the CAN bus line, go to Step 2.
STEP 2. M.U.T.-III diagnostic trouble code.
Check the engine diagnostic trouble code.
Q: Is the diagnostic trouble code set? YES : Perform the relevant troubleshooting.
NO : Go to Step 3.
STEP 3. Check whether the diagnostic trouble code is reset.
Q: Is diagnostic trouble code No.U0100 set? YES : Replace the AWC-ECU. Then go to Step 4.
NO : Intermittent malfunction.
STEP 4. Check whether the diagnostic trouble code is reset.
Q: Is diagnostic trouble code No.U0100 set? YES : Return to Step 1.
NO : This diagnosis is complete.
Code No.U0101: Transaxle Time-out Error
CAUTION
- If there is any problem in the CAN bus lines, an incorrect diagnostic trouble code may be set. Prior to this diagnosis, diagnose the CAN bus lines.
- Whenever the ECU is replaced, ensure that the CAN bus lines are normal.
OPERATION
AWC-ECU communicates with TCM via the CAN bus lines.
DIAGNOSTIC TROUBLE CODE SET CONDITIONS
The code is set when the signal sent from the TCM cannot be received for a certain period.
PROBABLE CAUSES
- Malfunction of the CAN bus line
- Malfunction of power supply circuit system (TCM)
- Malfunction of ECU (TCM)
- Malfunction of AWC-ECU
- ETACS coding failure (coding of A/T specification for a vehicle with M/T specification)
DIAGNOSTIC PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics.
Use scan tool to perform the CAN bus diagnosis.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus lines.
STEP 2. M.U.T.-III diagnostic trouble code.
Check the A/T diagnostic trouble code.
Q: Is the diagnostic trouble code set? YES : Perform the relevant troubleshooting.
NO : Go to Step 3.
STEP 3. ETACS-ECU coding data check.
Check the Transaxle coding data stored in ETACS-ECU for any abnormality.
Q: Is the check result normal?
YES : Go to Step 4.
NO : Replace the ETACS-ECU. Then go to Step 5.
STEP 4. Check whether the diagnostic trouble code is reset.
Q: Is diagnostic trouble code No.U0101 set? YES : Replace the AWC-ECU. Then go to Step 5.
NO : Intermittent malfunction.
STEP 5. Check whether the diagnostic trouble code is reset.
Q: Is diagnostic trouble code No.U0101 set? YES : Return to Step 1.
NO : This diagnosis is complete.
Code No.U0121: ASC Time-out Error
CAUTION
- If there is any problem in the CAN bus lines, an incorrect diagnostic trouble code may be set. Prior to this diagnosis, diagnose the CAN bus lines.
- Whenever the ECU is replaced, ensure that the CAN bus lines are normal.
OPERATION
AWC-ECU communicates with the ASC-ECU via the CAN bus lines.
DIAGNOSTIC TROUBLE CODE SET CONDITIONS
The code is set when the signal sent from the ASC-ECU cannot be received for a certain period.
PROBABLE CAUSES
- Malfunction of the CAN bus line
- Malfunction of power supply circuit system (ASC-ECU)
- Malfunction of ECU (ASC-ECU)
- Malfunction of AWC-ECU
DIAGNOSTIC PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics.
Use scan tool to perform the CAN bus diagnosis.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus lines.
STEP 2. M.U.T.-III diagnostic trouble code.
Check the ASC diagnostic trouble code.
Q: Is the diagnostic trouble code set? YES : Perform the relevant troubleshooting.
NO : Go to Step 3.
STEP 3. Check whether the diagnostic trouble code is reset.
Q: Is diagnostic trouble code No.U0121 set? YES : Replace the AWC-ECU. Then go to Step 4.
NO : Intermittent malfunction.
STEP 4. Check whether the diagnostic trouble code is reset.
Q: Is diagnostic trouble code No.U0121 set? YES : Return to Step 1.
NO : This diagnosis is complete.
Code No.U0126: Steering Wheel Sensor Time-out Error
CAUTION
- If there is any problem in the CAN bus lines, an incorrect diagnostic trouble code may be set. Prior to this diagnosis, diagnose the CAN bus lines.
- Whenever the ECU is replaced, ensure that the CAN bus lines are normal.
- When the steering wheel sensor is replaced, calibrate the steering wheel sensor (Refer to GROUP 35C − On-vehicle Service), and reset the steering wheel sensor correction amount stored in the AWC-ECU. (Item No.1: SAS adjusted value).
OPERATION
AWC-ECU communicates with the steering wheel sensor via the CAN bus lines.
DIAGNOSTIC TROUBLE CODE SET CONDITIONS
The code is set when the signal sent from the steering wheel sensor cannot be received for a certain period.
PROBABLE CAUSES
- Malfunction of the CAN bus line
- Malfunction of power supply circuit system (steering wheel sensor)
- Malfunction of the steering wheel sensor
- Malfunction of AWC-ECU
DIAGNOSTIC PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics.
Use scan tool to perform the CAN bus diagnosis.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus lines.
STEP 2. M.U.T.-III data list.
Item No.8: Steering angle sensor.
Q: Is the check result normal?
YES : Intermittent malfunction.
NO : Replace the steering wheel sensor. Then go to Step 3.
STEP 3. Check whether the diagnostic trouble code is reset.
Q: Is diagnostic trouble code No.U0126 set? YES : Replace the AWC-ECU. Then go to Step 4.
NO : Intermittent malfunction.
STEP 4. Check whether the diagnostic trouble code is reset.
Q: Is diagnostic trouble code No.U0126 set? YES : Return to Step 1.
NO : This diagnosis is complete.
Code No.U0141: ETACS Time-out Error
CAUTION
- If there is any problem in the CAN bus lines, an incorrect diagnostic trouble code may be set. Prior to this diagnosis, diagnose the CAN bus lines.
- Whenever the ECU is replaced, ensure that the CAN bus lines are normal.
OPERATION
AWC-ECU communicates with the ETACS-ECU via the CAN bus lines.
DIAGNOSTIC TROUBLE CODE SET CONDITIONS
The code is set when the signal sent from the ETACS-ECU cannot be received for a certain period.
PROBABLE CAUSES
- Malfunction of the CAN bus line
- Malfunction of power supply circuit system (ETACS-ECU)
- Malfunction of ECU (ETACS-ECU)
- Malfunction of AWC-ECU
DIAGNOSTIC PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics.
Use scan tool to perform the CAN bus diagnosis.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus lines.
STEP 2. M.U.T.-III diagnostic trouble code.
Check the ETACS diagnostic trouble code.
Q: Is the diagnostic trouble code set? YES : Perform the relevant troubleshooting.
NO : Go to Step 3.
STEP 3. Check whether the diagnostic trouble code is reset.
Q: Is diagnostic trouble code No.U0141 set? YES : Replace the AWC-ECU. Then go to Step 4.
NO : Intermittent malfunction.
STEP 4. Check whether the diagnostic trouble code is reset.
Q: Is diagnostic trouble code No.U0141 set? YES : Return to Step 1.
NO : This diagnosis is complete.
Code No.U0401: Engine Data Malfunction
CAUTION
- If there is any problem in the CAN bus lines, an incorrect diagnostic trouble code may be set. Prior to this diagnosis, diagnose the CAN bus lines.
- Whenever the ECU is replaced, ensure that the CAN bus lines are normal.
OPERATION
AWC-ECU communicates with the ECM via the CAN bus lines.
DIAGNOSTIC TROUBLE CODE SET CONDITIONS
The code is set when abnormality is detected in the signal received from the ECM.
PROBABLE CAUSES
- Malfunction of the CAN bus line
- Engine malfunction
- Malfunction of ECM
- Malfunction of AWC-ECU
DIAGNOSTIC PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics.
Use scan tool to perform the CAN bus diagnosis.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus lines.
STEP 2. M.U.T.-III diagnostic trouble code.
Check the engine diagnostic trouble code.
Q: Is the diagnostic trouble code set? YES : Perform the relevant troubleshooting.
NO : Go to Step 3.
STEP 3. M.U.T.-III data list.
Check the following data list.
- Item No.12: Engine speed
- Item No.13: Engine torque (Driver request value)
Q: Is the check result normal?
YES : Intermittent malfunction.
NO : Go to Step 4.
STEP 4. Check whether the diagnostic trouble code is reset.
Q: Is diagnostic trouble code No.U0401 set? YES : Replace the AWC-ECU. Then go to Step 5.
NO : Intermittent malfunction.
STEP 5. Check whether the diagnostic trouble code is reset.
Q: Is diagnostic trouble code No.U0401 set? YES : Return to Step 1.
NO : This diagnosis is complete.
Code No.U0428: Steering Wheel Sensor Data Malfunction
CAUTION
- If there is any problem in the CAN bus lines, an incorrect diagnostic trouble code may be set. Prior to this diagnosis, diagnose the CAN bus lines.
- Whenever the ECU is replaced, ensure that the CAN bus lines are normal.
- When the steering wheel sensor is replaced, calibrate the steering wheel sensor (Refer to GROUP 35C − On-vehicle Service), and reset the steering wheel sensor correction amount stored in the AWC-ECU. (Item No.1: SAS adjusted value).
OPERATION
AWC-ECU communicates with the steering wheel sensor via the CAN bus lines.
DIAGNOSTIC TROUBLE CODE SET CONDITIONS
The code is set when abnormality is detected in the signal received from the steering wheel sensor.
PROBABLE CAUSES
- Malfunction of the CAN bus line
- Malfunction of the steering wheel sensor
- Malfunction of AWC-ECU
DIAGNOSTIC PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics.
Use scan tool to perform the CAN bus diagnosis.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus lines.
STEP 2. M.U.T.-III data list.
Item No.8: Steering angle sensor.
Q: Is the check result normal?
YES : Intermittent malfunction.
NO : Replace the steering wheel sensor. Then go to Step 3.
STEP 3. Check whether the diagnostic trouble code is reset.
Q: Is diagnostic trouble code No.U0428 set? YES : Replace the AWC-ECU. Then go to Step 4.
NO : Intermittent malfunction.
STEP 4. Check whether the diagnostic trouble code is reset.
Q: Is diagnostic trouble code No.U0428 set? YES : Return to Step 1.
NO : This diagnosis is complete.
Code No.U0431: ETACS Data Malfunction
CAUTION
- If there is any problem in the CAN bus lines, an incorrect diagnostic trouble code may be set. Prior to this diagnosis, diagnose the CAN bus lines.
- Whenever the ECU is replaced, ensure that the CAN bus lines are normal.
OPERATION
AWC-ECU communicates with the ETACS-ECU via the CAN bus lines.
DIAGNOSTIC TROUBLE CODE SET CONDITIONS
The code is set when abnormality is detected in the signal received from ETACS-ECU.
PROBABLE CAUSES
- Malfunction of the CAN bus line
- Malfunction of ETACS-ECU power supply circuit system
- ETACS-ECU malfunction
- Malfunction of AWC-ECU
- Coding not implemented
DIAGNOSTIC PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics.
Use scan tool to perform the CAN bus diagnosis.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus lines.
STEP 2. M.U.T.-III diagnostic trouble code.
Check if the AWC diagnostic trouble code No.U1415 is set.
Q: Is the diagnostic trouble code set? YES : Perform the relevant troubleshooting.
NO : Go to Step 3.
STEP 3. M.U.T.-III diagnostic trouble code.
Check the ETACS diagnostic trouble code.
Q: Is the diagnostic trouble code set? YES : Perform the relevant troubleshooting.
NO : Go to Step 4.
STEP 4. M.U.T.-III data list.
Check the ETACS data list below.
- Item No.252: Ambient temperature sensor
- Item No.254: IG voltage
Q: Is the check result normal?
YES : Go to Step 5.
NO : Replace the ETACS-ECU.
STEP 5. Check whether the diagnostic trouble code is reset.
Q: Is diagnostic trouble code No.U0431 set? YES : Replace the AWC-ECU. Then go to Step 6.
NO : Intermittent malfunction.
STEP 6. Check whether the diagnostic trouble code is reset.
Q: Is diagnostic trouble code No.U0431 set? YES : Return to Step 1.
NO : This diagnosis is complete.
Code No.U1415: Coding incomplete/fail
CAUTION
- If there is any problem in the CAN bus lines, an incorrect diagnostic trouble code may be set. Prior to this diagnosis, diagnose the CAN bus lines.
- Whenever the ECU is replaced, ensure that the CAN bus lines are normal.
- When the diagnostic trouble code No.U1415 is set in AWC-ECU, the diagnostic trouble code may also be set in ETACS-ECU. When the diagnostic trouble code is set in ETACS-ECU, perform the diagnosis of the diagnostic trouble code for ETACS-ECU first.
OPERATION
AWC-ECU receives the vehicle information stored in ETACS-ECU via CAN bus lines.
DIAGNOSTIC TROUBLE CODE SET CONDITIONS
The code is set when the AWC-ECU coding has not been performed.
PROBABLE CAUSES
- Malfunction of the CAN bus line
- Coding not implemented
- ETACS-ECU malfunction
- Malfunction of AWC-ECU
DIAGNOSTIC PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics.
Use scan tool to perform the CAN bus diagnosis.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus lines.
STEP 2. M.U.T.-III diagnostic trouble code.
Check the ETACS diagnostic trouble code.
Q: Is the diagnostic trouble code set? YES : Perform the relevant troubleshooting.
NO : Go to Step 3.
STEP 3. ETACS-ECU coding data check
Using the M.U.T.-III, check if there is any abnormality to the coding data stored in the ETACS-ECU.
Q: Is the check result normal?
YES : Go to Step 4.
NO : Replace the ETACS-ECU. Then go to Step 5.
STEP 4. Check whether the diagnostic trouble code is reset.
Q: Is diagnostic trouble code No.U1415 set? YES : Replace the AWC-ECU. Then go to Step 5.
NO : Intermittent malfunction.
STEP 5. Check whether the diagnostic trouble code is reset.
Q: Is diagnostic trouble code No.U1415 set? YES : Return to Step 1.
NO : This diagnosis is complete.
Code No.U1417: Coding Data Malfunction
CAUTION
- If there is any problem in the CAN bus lines, an incorrect diagnostic trouble code may be set. Prior to this diagnosis, diagnose the CAN bus lines.
- Whenever the ECU is replaced, ensure that the communication circuit is normal.
- When the diagnostic trouble code No.U1417 is set in AWC-ECU, the diagnostic trouble code may also be set in ETACS-ECU. When the diagnostic trouble code is set in ETACS-ECU, perform the diagnosis of the diagnostic trouble code for ETACS-ECU first.
OPERATION
AWC-ECU receives the vehicle information stored in ETACS-ECU via CAN bus lines.
DIAGNOSTIC TROUBLE CODE SET CONDITIONS
The code is set when the vehicle information received from ETACS-ECU is not correct.
PROBABLE CAUSES
- Malfunction of the CAN bus line
- ETACS-ECU malfunction
- Malfunction of AWC-ECU
- ETACS-ECU has been interchanged between two vehicles.
DIAGNOSTIC PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics.
Use scan tool to perform the CAN bus diagnosis.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus lines.
STEP 2. M.U.T.-III diagnostic trouble code.
Check the ETACS diagnostic trouble code.
Q: Is the diagnostic trouble code set? YES : Perform the relevant troubleshooting.
NO : Go to Step 3.
STEP 3. ETACS-ECU coding data check
Using the M.U.T.-III, check if there is any abnormality to the coding data stored in the ETACS-ECU.
Q: Is the check result normal?
YES : Go to Step 4.
NO : Repair the coding data or replace ETACS-ECU.
Then go to Step 6.
STEP 4. Check the part number of ETACS-ECU
Check the part number of ETACS-ECU.
Q: Is the check result normal?
YES : Go to Step 5.
NO : Replace the ETACS-ECU, and then go to Step 6.
STEP 5. Check whether the diagnostic trouble code is reset.
Q: Is diagnostic trouble code No.U1417 set? YES : Replace the AWC-ECU. Then go to Step 6.
NO : Intermittent malfunction.
STEP 6. Check whether the diagnostic trouble code is reset.
Q: Is diagnostic trouble code No.U1417 set? YES : Return to Step 1.
NO : This diagnosis is complete.
Code No.U1425: Transaxle Data Malfunction
CAUTION
- If there is any problem in the CAN bus lines, an incorrect diagnostic trouble code may be set. Prior to this diagnosis, diagnose the CAN bus lines.
- Whenever the ECU is replaced, ensure that the CAN bus lines are normal.
OPERATION
AWC-ECU communicates with TCM via the CAN bus lines.
DIAGNOSTIC TROUBLE CODE SET CONDITIONS
The code is set when abnormality is detected in the gear shift signal received from the TCM.
PROBABLE CAUSES
- Malfunction of the CAN bus line
- Malfunction of TCM
- Malfunction of AWC-ECU
DIAGNOSTIC PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics.
Use scan tool to perform the CAN bus diagnosis.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus lines.
STEP 2. M.U.T.-III diagnostic trouble code.
Check the A/T diagnostic trouble code.
YES : Perform the relevant troubleshooting.
NO : Go to Step 3.
STEP 3. M.U.T.-III data list.
Item No.15: A/T Gear position.
Q: Is the check result normal?
YES : Intermittent malfunction.
NO : Go to Step 4.
STEP 4. Check whether the diagnostic trouble code is reset.
Q: Is diagnostic trouble code No.U1425 set?
YES : Replace the AWC-ECU. Then go to Step 5.
NO : Intermittent malfunction.
STEP 5. Check whether the diagnostic trouble code is reset.
Q: Is diagnostic trouble code No.U1425 set?
YES : Return to Step 1.
NO : This diagnosis is complete.
Code No.U1427: Wheel Speed Sensor Data Malfunction
CAUTION
- If there is any problem in the CAN bus lines, an incorrect diagnostic trouble code may be set. Prior to this diagnosis, diagnose the CAN bus lines.
- Whenever the ECU is replaced, ensure that the CAN bus lines are normal.
OPERATION
AWC-ECU communicates with the ASC-ECU via the CAN bus lines.
DIAGNOSTIC TROUBLE CODE SET CONDITIONS
The code is set when abnormality is detected in the wheel speed sensor signal received from the ASC-ECU.
PROBABLE CAUSES
- Malfunction of the CAN bus line
- Malfunction of the wheel speed sensor
- Malfunction of ASC-ECU
- Malfunction of AWC-ECU
DIAGNOSTIC PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics.
Use scan tool to perform the CAN bus diagnosis.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus lines.
STEP 2. M.U.T.-III diagnostic trouble code.
Check the ASC diagnostic trouble code.
Q: Is the diagnostic trouble code set? YES : Perform the relevant troubleshooting.
NO : Go to Step 3.
STEP 3. M.U.T.-III data list.
Check the data list of the relevant wheel speed sensor.
- Item No.21: Wheel speed sensor <FL>
- Item No.22: Wheel speed sensor <FR>
- Item No.23: Wheel speed sensor <RL>
- Item No.24: Wheel speed sensor <RR>
Q: Is the check result normal?
YES : Intermittent malfunction.
NO : Go to Step 4.
STEP 3. M.U.T.-III data list.
Check the data list of the relevant wheel speed sensor.
- Item No.21: Wheel speed sensor <FL>
- Item No.22: Wheel speed sensor <FR>
- Item No.23: Wheel speed sensor <RL>
- Item No.24: Wheel speed sensor <RR>
Q: Is the check result normal?
YES : Intermittent malfunction.
NO : Go to Step 4.
STEP 4. Check whether the diagnostic trouble code is reset.
Q: Is diagnostic trouble code No.U1427 set? YES : Replace the AWC-ECU. Then go to Step 5.
NO : Intermittent malfunction.
STEP 5. Check whether the diagnostic trouble code is reset.
Q: Is diagnostic trouble code No.U1427 set? YES : Return to Step 1.
NO : This diagnosis is complete.
Code No.U1428: G and Yaw Rate Sensor Data Malfunction
CAUTION
- If there is any problem in the CAN bus lines, an incorrect diagnostic trouble code may be set. Prior to this diagnosis, diagnose the CAN bus lines.
- Whenever the ECU is replaced, ensure that the CAN bus lines are normal.
- Do not drop the G and yaw rate sensor or subject it to a shock.
- When G and yaw rate sensor is replaced, calibrate G and yaw rate sensor (refer to GROUP 35C − On-vehicle Service)
OPERATION
AWC-ECU receives the G and yaw rate sensor data from ASC-ECU via the CAN communication.
DIAGNOSTIC TROUBLE CODE SET CONDITIONS
The code is set when abnormality is detected in the G and yaw rate sensor signal received from the ASC-ECU.
PROBABLE CAUSES
- Malfunction of G and yaw rate sensor
- Malfunction of G and yaw rate sensor power supply
- Damaged connector(s)
- Malfunction of the CAN bus line
- Malfunction of AWC-ECU
- Malfunction of ASC-ECU
DIAGNOSTIC PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics.
Use scan tool to perform the CAN bus diagnosis.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus lines.
STEP 2. M.U.T.-III diagnostic trouble code.
Check the ASC diagnostic trouble code.
Q: Is the diagnostic trouble code set? YES : Perform the relevant troubleshooting.
NO : Go to Step 3.
STEP 3. M.U.T.-III diagnostic trouble code.
Check if the AWC diagnostic trouble code No.C123C, C1242 is set.
Q: Is the check result normal?
YES : Perform the relevant troubleshooting.
NO : Go to Step 4.
STEP 4. M.U.T.-III data list.
Check the data list below.
- Item No.25: Yaw rate sensor
- Item No.26: Lateral G sensor
- Item No.27: Longitudinal G sensor
Q: Is the check result normal?
YES : Go to Step 5.
NO : Replace the G and yaw rate sensor.
Then go to Step 6.
STEP 5. Check whether the diagnostic trouble code is reset.
Q: Is diagnostic trouble code No.U1428 set? YES : Replace the AWC-ECU. Then go to Step 6.
NO : Intermittent malfunction.
STEP 6. Check whether the diagnostic trouble code is reset.
Q: Is diagnostic trouble code No.U1428 set? YES : Return to Step 1.
NO : This diagnosis is complete.
READ NEXT:
Inspection Procedure
INSPECTION PROCEDURE 1: Communication between scan tool and AWC-ECU
cannot be
established
CAUTION
If there is any problem in the CAN bus lines,
an incorrect trouble symptom may occur.
Prior to th
On-vehicle Service
A/T CONTROL COMPONENT LAYOUT
ESSENTIAL SERVICE
TRANSMISSION FLUID CHECK
1. Drive the vehicle until the transmission fluid temperature
rises to the normal operating temperature [70 − 80ºC (
Transaxle Control
REMOVAL AND INSTALLATION
WARNING
When removing and installing the transaxle
control cable and shift lock cable unit, be
careful not to hit the SRS-ECU.
Pre-removal operation
Front floor console asse
SEE MORE:
Diagnosis
CAN BUS DIAGNOSTICS TABLE
CAUTION
A diagnostic trouble code may not also be set in
the CAN-B lines under the conditions below. If no
diagnostic trouble code has been set due to electrical
noise, confirm diagnostic item 26.
Open circuit at the CAN_H side of the CAN-B
bus lines
Open circuit at the
Ignition System
GENERAL INFORMATION
This system is equipped with four <2.4L> or six
<3.0L> ignition coils with built-in power transistors for
each of the cylinders.
Interruption of the primary current flowing in the primary
side of an ignition coil generates a high voltage
in the secondary side of igni
