DTC P2200:00 [DOSING CONTROL UNIT (SKYACTIV-D 2.2)]

id0102k1725700

Note

•  To determine the malfunctioning part, proceed with the diagnostics from "Function Inspection Using M-MDS".

Details On DTCs

DESCRIPTION	NOx sensor No.1 control circuit range/performance problem
DETECTION CONDITION	Determination conditions	•  Any one of the following conditions is met: ―  Signal for open circuit in circuit from NOx sensor No.1 is received for a continuous 4 s ―  Signal for short circuit in circuit from NOx sensor No.1 is received for a continuous 4 s
	Preconditions	•  Battery voltage: 10.9—16 V •  CAN communication is normal at engine start for a continuous 20 s or more •  The following DTCs is not detected: ―  NOx sensor No.1: U029D:00
	Drive cycle	•  1
	Self test type	•  CMDTC self test
	Sensor used	•  NOx sensor No.1 •  Dosing control unit
FAIL-SAFE FUNCTION	•  Restricts the maximum remaining distance to empty. •  Limits the upper limit of the engine speed.
VEHICLE STATUS WHEN DTCs ARE OUTPUT	•  DTC P2BAF:00 is also stored in the PCM and the vehicle speed is restricted. •  DTC P1640:00 is also stored in the PCM. •  P0615:00 may be stored if the remaining distance to empty is 0 km {0 mile} and the engine cannot be restarted.
POSSIBLE CAUSE	•  NOx sensor No.1 connector or terminals malfunction •  Dosing control unit connector or terminals malfunction •  NOx sensor No.1 loose •  Open or short circuit in wiring harness between the following terminals: ―  NOx sensor No.1 terminal B—dosing control unit terminal BK ―  NOx sensor No.1 terminal C—dosing control unit terminal BL •  NOx sensor No.1 malfunction ―  NOx sensor No.1 internal heater malfunction ―  NOx sensor No.1 control unit malfunction •  Dosing control unit malfunction

System Wiring Diagram

ac5uuw00009763

Function Explanation (DTC Detection Outline)

Repeatability Verification Procedure

1.  Perform the "COMPULSORY DIESEL PARTICULATE FILTER REGENERATION". (See COMPULSORY DIESEL PARTICULATE FILTER REGENERATION [SKYACTIV-D 2.2].)

2.  Idle the engine for 1 min.

PID Item/Simulation Item Used In Diagnosis

PID/DATA monitor item table

Function Inspection Using M-MDS

STEP	INSPECTION	RESULTS	ACTION
1	PURPOSE: VERIFY RELATED REPAIR 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	PURPOSE: RECORD FREEZE FRAME DATA/SNAPSHOT DATA AND DIAGNOSTIC MONITORING TEST RESULTS TO UTILIZE WITH REPEATABILITY VERIFICATION Note •  Recording can be facilitated using the screen capture function of the PC. •  Record the FREEZE FRAME DATA/snapshot data and DIAGNOSTIC MONITORING TEST RESULTS (NOx sensor No.1) on the repair order.	—	Go to the next step.
3	PURPOSE: VERIFY IF DIAGNOSTIC RESULT IS AFFECTED BY OTHER RELATED DTCs OCCURRING •  Switch the ignition off, then ON (engine off). •  Perform the Pending Trouble Code Access Procedure and DTC Reading Procedure. •  Is the PENDING CODE/DTC P220A:00 or U029D:00 also present?	Yes	Go to the applicable DTC inspection. (See DTC P220A:00 [DOSING CONTROL UNIT (SKYACTIV-D 2.2)].) (See DTC U029D:00 [DOSING CONTROL UNIT (SKYACTIV-D 2.2)].) Repair or replace the applicable wiring harness or connector parts. Go to the troubleshooting procedure to perform the procedure from Step 5.
		No	Go to the next step.
4	PURPOSE: VERIFY IF THERE IS PID ITEM CAUSING DRASTIC CHANGES OF ACCELERATION FLUCTUATION BY INPUT SIGNAL TO PCM OR DOSING CONTROL UNIT •  Access the following PIDs using the M-MDS: (See ON-BOARD DIAGNOSTIC TEST [DOSING CONTROL UNIT (SKYACTIV-D 2.2)].) ―  NOX_C_B1S1 •  Is there any signal that is far out of specification?	Yes	Go to the next step.
		No	Go to Troubleshooting Diagnostic Procedure to perform the procedure from step 1.
5	PURPOSE: VERIFY CONNECTOR CONNECTIONS •  Access the following PIDs using the M-MDS: (See ON-BOARD DIAGNOSTIC TEST [DOSING CONTROL UNIT (SKYACTIV-D 2.2)].) ―  NOX_C_B1S1 •  When the following parts are shaken, does the PID value include a PID item which has changed? ―  NOx sensor No.1 ―  Dosing control unit	Yes	Inspect the related wiring harness and connector. •  Repair or replace the malfunctioning part.
		No	Go to Troubleshooting Diagnostic Procedure to perform the procedure from step 1.

Troubleshooting Diagnostic Procedure

―  Perform a unit inspection of the NOx sensor No.1.

―  Perform inspection of NOx sensor No.1 CAN communication related parts.

―  Verify that the engine can be started.

―  Verify that the primary malfunction is resolved and there are no other malfunctions.

STEP	INSPECTION	RESULTS	ACTION
1	PURPOSE: INSPECT INSTALLATION OF NOx SENSOR No.1 •  Inspect installation of NOx sensor No.1. •  Is the NOx sensor No.1 installed securely?	Yes	Go to the next step.
		No	Retighten the NOx sensor No.1, then go to Step 5. (See NOx SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
2	PURPOSE: INSPECT NOx SENSOR NO.1 CIRCUIT FOR SHORT TO GRO •  Verify that the NOx sensor No.1 and dosing control unit connectors are disconnected. •  Inspect for continuity between the following terminals (wiring harness-side) and body ground: ―  NOx sensor No.1 terminal B ―  NOx sensor No.1 terminal C •  Is there continuity?	Yes	Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals: •  NOx sensor No.1 terminal B—dosing control unit terminal BK •  NOx sensor No.1 terminal C—dosing control unit terminal BL If there is a common connector: •  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground. •  Repair or replace the malfunctioning part. If there is no common connector: •  Repair or replace the wiring harness which has a short to ground. Go to Step 5.
		No	Go to the next step.
3	PURPOSE: INSPECT NOx SENSOR NO.1 CIRCUIT FOR SHORT TO POWER SUPPLY •  Verify that the NOx sensor No.1 and dosing control unit connectors are disconnected. •  Switch the ignition ON (engine off). Note •  Another DTC may be stored by the dosing control unit detecting an open circuit. •  Measure the voltage at the following terminals (wiring harness-side). ―  NOx sensor No.1 terminal B ―  NOx sensor No.1 terminal C •  Is the voltage 0 V?	Yes	Go to the next step.
		No	Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals: •  NOx sensor No.1 terminal B—dosing control unit terminal BK •  NOx sensor No.1 terminal C—dosing control unit terminal BL If there is a common connector: •  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to power supply. •  Repair or replace the malfunctioning part. If there is no common connector: •  Repair or replace the wiring harness which has a short to power supply. Go to Step 5.
4	PURPOSE: INSPECT NOx SENSOR NO.1 CIRCUIT FOR OPEN CIRCUIT •  Verify that the NOx sensor No.1 and dosing control unit connectors are disconnected. •  Switch the ignition off. •  Inspect for continuity between the following terminals (wiring harness-side): ―  NOx sensor No.1 terminal B—dosing control unit terminal BK ―  NOx sensor No.1 terminal C—dosing control unit terminal BL •  Is there continuity?	Yes	Replace the NOx sensor No.1, then go to the next step. (See NOx SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
		No	Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals: •  NOx sensor No.1 terminal B—dosing control unit terminal BK •  NOx sensor No.1 terminal C—dosing control unit terminal BL If there is a common connector: •  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit. •  Repair or replace the malfunctioning part. If there is no common connector: •  Repair or replace the wiring harness which has an open circuit. Go to the next step.
5	VERIFY THAT ENGINE CAN BE STARTED •  Always reconnect all disconnected connectors. •  Clear the DTC from the dosing control unit memory using the M-MDS. (See CLEARING DTC [DOSING CONTROL UNIT (SKYACTIV-D 2.2)].) Note •  The engine cannot be restarted when the remaining distance to empty is 0 km {0 mile}. •  Start the engine. •  Can the engine be started?	Yes	Go to the next step.
		No	Perform the “SCR INDUCEMENT INSPECTION SERVICE FUNCTION” using the M-MDS. (See SCR INDUCEMENT INSPECTION SERVICE FUNCTION [DOSING CONTROL UNIT (SKYACTIV-D 2.2)].) Note •  When restriction of the remaining distance to empty is canceled, the SCR system warning light/SCR system warning indication turns off. Go to the next step.
6	IMPLEMENT THE REPEATABILITY VERIFICATION PROCEDURE •  Always reconnect all disconnected connectors. •  Implement the repeatability verification procedure. (See Repeatability Verification Procedure.) •  Has the restriction of the remaining distance to empty been canceled?	Yes	Go to the next step.
		No	Repeat the inspection from Step 5.
7	VERIFY DTC TROUBLESHOOTING COMPLETED •  Retrieve the dosing control unit DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [DOSING CONTROL UNIT (SKYACTIV-D 2.2)].) •  Is the same Pending DTC present?	Yes	Go to the next step.
		No	Repeat the inspection from Step 1. •  If the malfunction recurs, replace the dosing control unit. (See DOSING CONTROL UNIT REMOVAL/INSTALLATION [SKYACTIV-D 2.2].) Go to the next step.
8	VERIFY IF OTHER DTCs DISPLAYED •  Are any other DTCs displayed?	Yes	Repair or replace the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [DOSING CONTROL UNIT (SKYACTIV-D 2.2)].)
		No	DTC troubleshooting completed.