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 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 slope control.

• Engine torque signal error

• Inhibits learning control.

• Inhibits AAS mode.

• Inhibits slip control.

• Inhibits 5GR and 6GR.

• 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 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

STEP

INSPECTION

ACTION

1

• Verify related Service Bulletins and/or on-line repair information availability.

• Is any related repair information available?

Yes

Perform repair or diagnosis according to the available repair information.

• If the vehicle is not repaired, go to the next step.

No

Go to the next step.

2

• Perform the PCM DTC inspection using the M-MDS.

  (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-G 2.0)].)

• Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [PCM (SKYACTIV-G 2.0)].)

No

Go to the next step.

3

• Clear the DTC using the M-MDS.

  (See ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION [TCM (SJ6A-EL)].)

• Perform the following procedure to ensure that the DTC has been resolved:

• Start the engine and warm it up completely.

• Drive the vehicle for a while under the following conditions:

• Selector lever position: D position

• Perform the DTC inspection using the M-MDS.

  (See ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION [TCM (SJ6A-EL)].)

• 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.