DTC U0442:00 [TCM (SJ6A-EL)]

id0502o1905300

DTC U0442:00

CAN communication: Error signal received from PCM
DETECTION CONDITION
•  Throttle opening signal error
―  Vehicle condition: TCM communication normal
―  Status: Detects throttle opening angle signal error
―  Period: Confirmed 1 time in 0.5 s or more
•  Accelerator opening angle signal error
―  Vehicle condition: TCM communication normal
―  Status: Detects accelerator opening angle signal error
―  Period: Confirmed 1 time in 0.5 s or more
•  Engine torque signal error
―  Vehicle condition: TCM communication normal
―  Status: Detects engine torque signal error
―  Period: Confirmed 1 time in 0.5 s or more
•  Engine speed signal error
―  Vehicle condition: TCM communication normal
―  Status: Detects engine speed signal error
―  Period: Confirmed 1 time in 0.5 s or more
•  Engine coolant temperature signal error
―  Vehicle condition: TCM communication normal
―  Status: Detects engine coolant signal error
―  Period: Confirmed 1 time in 0.5 s or more
•  Detects engine misfire
―  Vehicle condition: TCM communication normal
―  Status: Detects engine misfire determination signal
―  Period: Confirmed 1 time
FAIL-SAFE FUNCTION
•  Throttle opening signal error
―  Inhibits learning control.
―  Inhibits direct mode.
―  Inhibits AAS mode.
―  Inhibits the TCC control and slip control.
―  Inhibits 5GR and 6GR.
―  Inhibits the neutral control.
―  Inhibits the i-stop control.
―  Inhibits the slope control.
•  Accelerator opening angle signal error
―  Inhibits learning control.
―  Inhibits direct mode.
―  Inhibits AAS mode.
―  Inhibits the TCC control and slip control.
―  Inhibits 5GR and 6GR.
―  Inhibits the neutral control.
―  Inhibits the i-stop control.
―  Inhibits the slope control.
•  Engine torque signal error
―  Inhibits learning control.
―  Inhibits AAS mode.
―  Inhibits slip control.
―  Inhibits 5GR and 6GR.
―  Inhibits the i-stop control.
―  Inhibits the slope control.
•  Engine speed signal error
―  Inhibits learning control.
―  Inhibits direct mode.
―  Inhibits AAS mode.
―  Inhibits the TCC control and slip control.
―  Inhibits 5GR and 6GR.
―  Inhibits the neutral control.
―  Inhibits the i-stop control.
―  Inhibits the slope control.
•  Engine coolant temperature signal error
―  Performs control with the ATF temperature of 80 °C {176 °F}.
―  Inhibits AAS mode.
―  Inhibits slip control.
―  Inhibits the neutral control.
―  Inhibits the slope control.
•  Detects engine misfire
―  Inhibits learning control.
―  Inhibits direct mode.
―  Inhibits AAS mode.
―  Inhibits the TCC control and slip control.
―  Inhibits 5GR and 6GR.
―  Inhibits the slope control.
POSSIBLE CAUSE
•  PCM DTC is stored.
SYSTEM WIRING DIAGRAM
Not applicable

Diagnostic procedure

STEP

INSPECTION

ACTION
1
VERIFY RELATED SERVICE INFORMATION AVAILABILITY
•  Verify related Service Information availability.
•  Is any related Service Information available?
Yes
Perform repair or diagnosis according to the available Service Information.
•  If the vehicle is not repaired, go to the next step.
No
Go to the next step.
2
VERIFY 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 [PCM (SKYACTIV-G 1.5, SKYACTIV-G 2.0)].)
No
Go to the next step.
3
VERIFY DTC TROUBLESHOOTING COMPLETED
•  Clear the DTC using the M-MDS.
•  Perform the following procedure to ensure that the DTC has been resolved:
1.  Start the engine and warm it up completely.
2.  Drive the vehicle for a while under the following conditions:
•  Selector lever position: D position
•  Perform the DTC inspection using the M-MDS.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [TCM (SJ6A-EL)].)
No
DTC troubleshooting completed.