DTC U0402:68 [REAR VEHICLE MONITORING SYSTEM]

id0902z2885400


MTX

DESCRIPTION

Error signal from PCM
DETECTION CONDITION
•  Rear vehicle monitoring control module (RH) receives the error signal from PCM for 1 s or more.
POSSIBLE CAUSE
•  PCM DTC is stored.
•  PCM malfunction
•  Rear vehicle monitoring control module (RH) malfunction

Diagnostic Procedure

STEP

INSPECTION

ACTION
1
CONFIRM PCM DTC
•  Perform the PCM DTC inspection using the M-MDS.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [MZR 1.5, MZR 1.6].)
(See DTC TABLE [MZR 2.0, MZR 2.5].)
(See DTC TABLE [MZR 2.0 DISI i-stop].)
(See DTC TABLE [MZR 2.3 DISI Turbo].)
(See DTC TABLE [MZR-CD 2.2].)
(See DTC TABLE [MZ-CD 1.6].)
No
Go to the next step.
2
PERFORM DTC INSPECTION AND VERIFY THAT MALFUNCTIONING PART IS PCM
•  Clear the DTC from rear vehicle monitoring control module using the M-MDS.
•  Switch the ignition to ON and wait for 1.5 s or more.
•  Perform the rear vehicle monitoring control module DTC inspection using the M-MDS.
•  Is the same DTC present?
Yes
Replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION [MZR 1.5, MZR 1.6].)
(See PCM REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5].)
(See PCM REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].)
(See PCM REMOVAL/INSTALLATION [MZR 2.3 DISI Turbo].)
(See PCM REMOVAL/INSTALLATION [MZR-CD 2.2].)
(See PCM REMOVAL/INSTALLATION [MZ-CD 1.6].)
No
Go to Step 4.
3
VERIFY TROUBLESHOOTING COMPLETED
•  Clear the DTC from rear vehicle monitoring control module using the M-MDS.
•  Switch the ignition to ON and wait for 1.5 s or more.
•  Perform the rear vehicle monitoring control module DTC inspection using the M-MDS.
•  Is the same DTC present?
Yes
Replace the rear vehicle monitoring control module (RH), then go to the next step.
(See REAR VEHICLE MONITORING CONTROL MODULE REMOVAL/INSTALLATION.)
No
Go to the next step.
4
VERIFY THAT NO OTHER DTCs ARE PRESENT
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [REAR VEHICLE MONITORING SYSTEM].)
No
DTC troubleshooting completed.


ATX

DESCRIPTION

Error signal from TCM
DETECTION CONDITION
•  Rear vehicle monitoring control module (RH) receives the error signal from TCM for 1 s or more.
POSSIBLE CAUSE
•  TCM DTC is stored.
•  TCM malfunction
•  Rear vehicle monitoring control module (RH) malfunction

Diagnostic Procedure

STEP

INSPECTION

ACTION
1
CONFIRM TCM DTC
•  Perform the TCM DTC inspection using the M-MDS.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [FN4A-EL].)
(See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [FS5A-EL].)
(See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [DJVA-EL].)
No
Go to the next step.
2
PERFORM DTC INSPECTION AND VERIFY THAT MALFUNCTIONING PART IS TCM
•  Clear the DTC from rear vehicle monitoring control module using the M-MDS.
•  Switch the ignition to ON and wait for 1.5 s or more.
•  Perform the rear vehicle monitoring control module DTC inspection using the M-MDS.
•  Is the same DTC present?
Yes
Replace the TCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION [MZR 1.5, MZR 1.6].)
(See TCM REMOVAL/INSTALLATION [FS5A-EL].)
(See TCM REMOVAL/INSTALLATION [DJVA-EL].)
No
Go to Step 4.
3
VERIFY TROUBLESHOOTING COMPLETED
•  Clear the DTC from rear vehicle monitoring control module using the M-MDS.
•  Switch the ignition to ON and wait for 1.5 s or more.
•  Perform the rear vehicle monitoring control module DTC inspection using the M-MDS.
•  Is the same DTC present?
Yes
Replace the rear vehicle monitoring control module (RH), then go to the next step.
(See REAR VEHICLE MONITORING CONTROL MODULE REMOVAL/INSTALLATION.)
No
Go to the next step.
4
VERIFY THAT NO OTHER DTCs ARE PRESENT
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [REAR VEHICLE MONITORING SYSTEM].)
No
DTC troubleshooting completed.