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DTC P2201:00 [PCM (SKYACTIV-D)]

id0102t5725800

Note

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

Details On DTCs

Description

NOx sensor system: NOx concentration malfunction

Detection condition

Determination conditions

•  With the following conditions met, the value of the NOx sensor on-board diagnostic result is not within the specified value.

Preconditions

•  After engine run, IG-OFF

•  Time after IF- OFF: about 90—180 s

•  Following condition before IG-Off are met:

―  Engine speed: 0—1,500 rpm for 4 s or more

―  Diesel particulate filter regeneration control is performed for 30 min or more

―  Vehicle speed: 1 km/h {0.6 mph}

―  Diesel particulate filter regeneration control is not operating

―  DeNOx control is not operating

―  DeSOx control is not operating

―  Exhaust gas amount is within specified value or exhaust gas temperature sensor No.4 is 119.96 °C {247.928 °F} or more

―  NOx sensor heater temperature is normal

―  NOx sensor supply voltage is normal

―  Battery voltage: 10.9 V or more

―  The following DTCs are not detected.

•  NOx sensor: U029D:00, P220A:00, P225C:00, P220E:00, P2203:00, P2202:00, P2200:00, P0138:00, P0137:00, P2270:00

Drive cycle

•  2

Self test type

•  CMDTC self test

Sensor used

•  NOx sensor

Fail-safe

•  Inhibits the DENOx/DESOx control.

Vehicle status when dtcs are output

•  Not applicable

Possible cause

•  NOx sensor connector or terminals malfunction

•  PCM connector or terminals malfunction

•  NOx sensor loose

•  Exhaust gas leakage from exhaust system

•  NOx sensor malfunction

―  NOx sensor control unit malfunction

―  Deterioration due to soot/moisture adhering to PM sensor

―  Characteristics malfunction

•  PCM malfunction

Description	NOx sensor system: NOx concentration malfunction
Detection condition	Determination conditions	• With the following conditions met, the value of the NOx sensor on-board diagnostic result is not within the specified value.
Preconditions	• After engine run, IG-OFF • Time after IF- OFF: about 90—180 s • Following condition before IG-Off are met: ― Engine speed: 0—1,500 rpm for 4 s or more ― Diesel particulate filter regeneration control is performed for 30 min or more ― Vehicle speed: 1 km/h {0.6 mph} ― Diesel particulate filter regeneration control is not operating ― DeNOx control is not operating ― DeSOx control is not operating ― Exhaust gas amount is within specified value or exhaust gas temperature sensor No.4 is 119.96 °C {247.928 °F} or more ― NOx sensor heater temperature is normal ― NOx sensor supply voltage is normal ― Battery voltage: 10.9 V or more ― The following DTCs are not detected. • NOx sensor: U029D:00, P220A:00, P225C:00, P220E:00, P2203:00, P2202:00, P2200:00, P0138:00, P0137:00, P2270:00
Drive cycle	• 2
Self test type	• CMDTC self test
Sensor used	• NOx sensor
Fail-safe	• Inhibits the DENOx/DESOx control.
Vehicle status when dtcs are output	• Not applicable
Possible cause	• NOx sensor connector or terminals malfunction • PCM connector or terminals malfunction • NOx sensor loose • Exhaust gas leakage from exhaust system • NOx sensor malfunction ― NOx sensor control unit malfunction ― Deterioration due to soot/moisture adhering to PM sensor ― Characteristics malfunction • PCM malfunction

System Wiring Diagram

• Not applicable

Function Explanation (DTC Detection Outline)

• NOx sensor performs diagnosis independently after IG-Off and if it detects an open or short circuit, it sends a malfunction signal to the PCM. When the malfunction signal is received from NOx sensor, the PCM stores a DTC.

Repeatability verification procedure

• Start the engine and warm it up.

― Drive the vehicle on flat roads under the following conditions 3 times repeatedly.

Caution

• Observe legal speed limits when driving the vehicle and perform the procedure in a location where safety can be assured.

Note

• The on-board diagnostics may not be implemented if the diesel particulate filter regeneration is performed.

1. Accelerate to 80 km/h and drive the vehicle while maintaining the speed for 300 s.

2. Switch the ignition off and leave it idling for 5 min.

PID Item/Simulation Item Used In Diagnosis

• Not applicable

Function Inspection Using M-MDS

Step

Inspection

Results

Action

1

PURPOSE: VERIFY RELATED REPAIR INFORMATION OR SERVICE INFORMATION AVAILABILITY

•  Verify related Service Bulletins, on-line repair information, or Service Information availability.

•  Is any related Information available?

Yes

Perform repair or diagnosis according to the available information.

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

No

Go to the next step.

2

PURPOSE: RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION

•  Record the freeze frame data/snapshot data.

Note

•  Recording can be facilitated using the screen capture function of the PC.

—

Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 1.

Step	Inspection	Results	Action
1	PURPOSE: VERIFY RELATED REPAIR INFORMATION OR SERVICE INFORMATION AVAILABILITY • Verify related Service Bulletins, on-line repair information, or Service Information availability. • Is any related Information available?	Yes	Perform repair or diagnosis according to the available information. • If the vehicle is not repaired, go to the next step.
No	Go to the next step.
2	PURPOSE: RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION • Record the freeze frame data/snapshot data. Note • Recording can be facilitated using the screen capture function of the PC.	—	Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 1.

Troubleshooting Diagnostic Procedure

Intention of troubleshooting procedure

• Step 1

― Perform inspection of NOx sensor installation.

• Step 2

― Perform a unit inspection of the NOx sensor.

• Step 3

― Perform inspection of NOx sensor signal related parts.

• Repair completion verification

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

Step

Inspection

Results

Action

1

PURPOSE: INSPECT INSTALLATION OF NOx SENSOR

•  Inspect installation of NOx sensor.

•  Is the NOx sensor installed securely?

Yes

Go to the next step.

No

Retighten the NOx sensor, then go to repair completion verification.

(See NOx SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

2

PURPOSE: INSPECT NOx SENSOR FOR MALFUNCTION

•  Inspect the applicable part.
(See NOx SENSOR INSPECTION [SKYACTIV-D 1.8].)

•  Is the part normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

(See NOx SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

3

PURPOSE: VERIFY IF MALFUNCTION RELATED TO EMISSION SYSTEM AFFECTS NOx SENSOR SIGNAL

•  Inspect for exhaust gas leakage from the exhaust system.

•  Is there any malfunction?

Yes

Repair or replace the malfunctioning part according to the inspection results, then go to the next step.

No

Replace the NOx sensor, then go to the next step.

(See NOx SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

Repair completion verification 1

PURPOSE: VERIFY THAT VEHICLE IS REPAIRED

•  Install/connect the part removed/disconnected during the troubleshooting procedure.

•  Clear the DTC recorded in the memory.
(See CLEARING DTC.)

•  Replicate the vehicle conditions at the time the DTC was detected using the following procedure.

―  Implement the repeatability verification procedure.
(See Repeatability verification procedure)

•  Perform the DTC inspection for the PCM.
(See DTC INSPECTION.)

•  Is the same Pending DTC present?

Yes

Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.

(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].)

If the CAN communication is normal, perform the diagnosis from Step 1.

•  If the malfunction recurs, replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

No

Go to the next step.

Repair completion verification 2

PURPOSE: VERIFY IF OTHER DTCs DISPLAYED

•  Perform the DTC inspection.
(See DTC INSPECTION.)

•  Are any other DTCs displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

No

DTC troubleshooting completed.

Step	Inspection	Results	Action
1	PURPOSE: INSPECT INSTALLATION OF NOx SENSOR • Inspect installation of NOx sensor. • Is the NOx sensor installed securely?	Yes	Go to the next step.
1		No	Retighten the NOx sensor, then go to repair completion verification. (See NOx SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)
2	PURPOSE: INSPECT NOx SENSOR FOR MALFUNCTION • Inspect the applicable part. (See NOx SENSOR INSPECTION [SKYACTIV-D 1.8].) • Is the part normal?	Yes	Go to the next step.
2		No	Repair or replace the malfunctioning location and perform the repair completion verification. (See NOx SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)
3	PURPOSE: VERIFY IF MALFUNCTION RELATED TO EMISSION SYSTEM AFFECTS NOx SENSOR SIGNAL • Inspect for exhaust gas leakage from the exhaust system. • Is there any malfunction?	Yes	Repair or replace the malfunctioning part according to the inspection results, then go to the next step.
3		No	Replace the NOx sensor, then go to the next step. (See NOx SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)
Repair completion verification 1	PURPOSE: VERIFY THAT VEHICLE IS REPAIRED • Install/connect the part removed/disconnected during the troubleshooting procedure. • Clear the DTC recorded in the memory. (See CLEARING DTC.) • Replicate the vehicle conditions at the time the DTC was detected using the following procedure. ― Implement the repeatability verification procedure. (See Repeatability verification procedure) • Perform the DTC inspection for the PCM. (See DTC INSPECTION.) • Is the same Pending DTC present?	Yes	Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].) If the CAN communication is normal, perform the diagnosis from Step 1. • If the malfunction recurs, replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)
Repair completion verification 1		No	Go to the next step.
Repair completion verification 2	PURPOSE: VERIFY IF OTHER DTCs DISPLAYED • Perform the DTC inspection. (See DTC INSPECTION.) • Are any other DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting.
Repair completion verification 2		No	DTC troubleshooting completed.