DTC U0073:00, U0100:00 [DOSING CONTROL UNIT (SKYACTIV-D 2.2)]

id0102k1913400

DTC U0073:00

CAN system communication error (HS CAN)

DETECTION CONDITION

•  Malfunction in CAN bus communication line.

MONITORING CONDITIONS

•  Battery voltage: 10.9—16 V

•  Ignition switched ON (engine off or on)

Note

•  DTC P2BAF:00 is also stored in the PCM and the vehicle speed is restricted.

•  DTC P1640:00 is also stored in the PCM.

Diagnostic support note

•  This is a continuous monitor (other).

•  The check engine light does not illuminate.

•  FREEZE FRAME DATA is not available.

•  Snapshot data is available.

•  DTC is stored in the dosing control unit memory.

FAIL-SAFE FUNCTION

•  Restricts the maximum remaining distance to empty.

•  Limits the upper limit of the engine speed.

POSSIBLE CAUSE

•  CAN bus communication line malfunction

•  Dosing control unit malfunction

SYSTEM WIRING DIAGRAM

•  Not applicable

DTC U0073:00	CAN system communication error (HS CAN)
DETECTION CONDITION	• Malfunction in CAN bus communication line. MONITORING CONDITIONS • Battery voltage: 10.9—16 V • Ignition switched ON (engine off or on) Note • DTC P2BAF:00 is also stored in the PCM and the vehicle speed is restricted. • DTC P1640:00 is also stored in the PCM. Diagnostic support note • This is a continuous monitor (other). • The check engine light does not illuminate. • FREEZE FRAME DATA is not available. • Snapshot data is available. • DTC is stored in the dosing control unit memory.
FAIL-SAFE FUNCTION	• Restricts the maximum remaining distance to empty. • Limits the upper limit of the engine speed.
POSSIBLE CAUSE	• CAN bus communication line malfunction • Dosing control unit malfunction
SYSTEM WIRING DIAGRAM	• Not applicable

DTC U0100:00

CAN communication: communication error to PCM

DETECTION CONDITION

•  Communication error between the dosing control unit and PCM continues for 5 s or more.

MONITORING CONDITIONS

•  Battery voltage: 10.9—16 V

•  Ignition switched ON (engine off or on)

Note

•  DTC P2BAF:00 is also stored in the PCM and the vehicle speed is restricted.

•  DTC P1640:00 is also stored in the PCM.

Diagnostic support note

•  This is a continuous monitor (CCM).

•  The check engine light illuminates if the dosing control unit detects the above malfunction condition during the first drive cycle.

•  FREEZE FRAME DATA/Snapshot data is available.

•  DTC is stored in the dosing control unit memory.

FAIL-SAFE FUNCTION

•  Restricts the maximum remaining distance to empty.

•  Limits the upper limit of the engine speed.

POSSIBLE CAUSE

•  CAN communication line malfunction between PCM and dosing control unit

•  PCM malfunction

•  Dosing control unit malfunction

SYSTEM WIRING DIAGRAM

•  Not applicable

DTC U0100:00	CAN communication: communication error to PCM
DETECTION CONDITION	• Communication error between the dosing control unit and PCM continues for 5 s or more. MONITORING CONDITIONS • Battery voltage: 10.9—16 V • Ignition switched ON (engine off or on) Note • DTC P2BAF:00 is also stored in the PCM and the vehicle speed is restricted. • DTC P1640:00 is also stored in the PCM. Diagnostic support note • This is a continuous monitor (CCM). • The check engine light illuminates if the dosing control unit detects the above malfunction condition during the first drive cycle. • FREEZE FRAME DATA/Snapshot data is available. • DTC is stored in the dosing control unit memory.
FAIL-SAFE FUNCTION	• Restricts the maximum remaining distance to empty. • Limits the upper limit of the engine speed.
POSSIBLE CAUSE	• CAN communication line malfunction between PCM and dosing control unit • PCM malfunction • Dosing control unit malfunction
SYSTEM WIRING DIAGRAM	• Not applicable

Diagnostic Procedure

• Inspect according to the diagnostic procedure in ON-BOARD DIAGNOSTIC [MULTIPLEX COMMUNICATION SYSTEM]. (See FOREWORD [SKYACTIV-G 2.0/2.5, SKYACTIV-D 2.2 (MTX) (L.H.D.)].) (See FOREWORD [SKYACTIV-G 2.0/2.5, SKYACTIV-D 2.2 (MTX) (R.H.D.)].) (See FOREWORD [SKYACTIV-G 2.5T, SKYACTIV-D 2.2 (ATX) (L.H.D.)].) (See FOREWORD [SKYACTIV-G 2.5T, SKYACTIV-D 2.2 (ATX) (R.H.D.)].)