DTC P3203:00 [PCM (SKYACTIV-D 2.2)]

id0102j5730600

DTC P3203:00

Engine torque limit request from dosing control unit
DETECTION CONDITION
•  PCM receives DTC detection signal from dosing control unit
Diagnostic support note
•  This is an intermittent monitor (other).
•  The check engine light does not illuminate.*
•  FREEZE FRAME DATA/Snapshot data is not available.
•  DTC is not stored in the PCM memory.
*: This DTC does not turn on the check engine light. The dosing control unit turns on or flash the check engine light due to a SCR system malfunction.
FAIL-SAFE FUNCTION
•  Limits engine torque.
•  Inhibits the automatic diesel particulate filter regeneration control.
POSSIBLE CAUSE
•  Dosing control unit detects DTC
SYSTEM WIRING DIAGRAM
Not applicable

Diagnostic Procedure

STEP

INSPECTION

ACTION
1
VERIFY RELATED SERVICE INFORMATION AVAILABILITY
•  Verify related Service Bulletins and/or on-line repair information availability.
•  Is any related Service 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
VERIFY DOSING CONTROL UNIT RELATED DTC
•  Retrieve dosing control unit DTCs using the M-MDS.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [DOSING CONTROL UNIT (SKYACTIV-D 2.2)].)
No
Go to the next step.
3
VERIFY DTC TROUBLESHOOTING COMPLETED
•  Always reconnect all disconnected connectors.
•  Clear the DTC from the PCM memory using the M-MDS.
•  Perform the PCM and Dosing unit DTC Reading Procedure.
•  Is the same DTC present?
Yes
Dosing control unit DTC is output:
•  Go to the applicable DTC inspection agein.
Dosing control unit DTC is not output:
•  Replace the PCM, then go to the next step.
No
Go to the next step.
4
VERIFY AFTER REPAIR PROCEDURE
•  Perform the “AFTER REPAIR PROCEDURE”.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [PCM (SKYACTIV-D 2.2)].)
No
DTC troubleshooting completed.