DTC P242B:00 [PCM (SKYACTIV-D 2.2)]

id0102j5057900

DTC P242B:00	Exhaust gas temperature sensor No.3: Correlation error
DETECTION CONDITION	•  With the following conditions met, the difference between the exhaust gas temperature sensor No.3 output value and the exhaust gas temperature sensor No.1, No.2, No.4 (with SCR system), or No.5 (with SCR system) output value is 150 °C {302 °F} or more for a continuous 0.128 s. ―  Before starting the engine, leave the vehicle with the engine turned off for 6 h or more. ―  Battery positive voltage: 10 V or more ―  Ignition is switched ON (engine off or on) ―  The following DTCs are not detected •  ECT sensor: P0118:00, P0117:00 •  Exhaust gas temperature sensor No.2: P2032:00, P2033:00 •  Exhaust gas temperature sensor No.1: P0545:00, P0546:00 •  Malfunction in instrument cluster: P2610:00 •  Exhaust gas temperature sensor No.3: P242C:00, P242D:00 •  Exhaust gas temperature sensor No.2 transistor: P161E:00, P16B2:00 •  Exhaust gas temperature sensor No.3 transistor: P161F:00, P16B3:00 Diagnostic support note •  This is a continuous monitor (CCM). •  The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle. •  FREEZE FRAME DATA/Snapshot data is available. •  DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION	•  Limits engine torque. •  Limits the maximum engine speed. •  Inhibits the automatic diesel particulate filter regeneration control. •  Inhibits the manual diesel particulate filter regeneration control. •  Inhibits the EGR control.
POSSIBLE CAUSE	•  Exhaust gas temperature sensor No.3 connector or terminal malfunction •  Exhaust gas temperature sensor No.3 malfunction •  Exhaust gas temperature sensor No.1 connector or terminal malfunction •  Exhaust gas temperature sensor No.1 malfunction •  Exhaust gas temperature sensor No.2 connector or terminal malfunction •  Exhaust gas temperature sensor No.2 malfunction •  Exhaust gas temperature sensor No.4 connector or terminal malfunction (with SCR system) •  Exhaust gas temperature sensor No.4 malfunction (with SCR system) •  Exhaust gas temperature sensor No.5 connector or terminal malfunction (with SCR system) •  Exhaust gas temperature sensor No.5 malfunction (with SCR system) •  PCM connector or terminal malfunction •  PCM malfunction
SYSTEM WIRING DIAGRAM	Not applicable

Diagnostic Procedure

Step	Inspection	Results	Action
1	RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION Note •  Recording can be facilitated using the screen capture function of the PC. •  Record the snap shot data.	—	Go to the next step.
2	INSPECT EXHAUST GAS TEMPERATURE SENSOR No.3 CONNECTOR CONDITION •  Switch the ignition OFF. •  Disconnect the exhaust gas temperature sensor No.3 connector. •  Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection. •  Is the connector normal?	Yes	Go to the next step.
		No	Repair or replace the connector, then go to Step 13.
3	INSPECT EXHAUST GAS TEMPERATURE SENSOR No.3 •  Inspect exhaust gas temperature sensor No.3. (See EXHAUST GAS TEMPERATURE SENSOR INSPECTION [SKYACTIV-D 2.2].) •  Is exhaust gas temperature sensor No.3 normal?	Yes	Go to the next step.
		No	Replace exhaust gas temperature sensor No.3, then go to Step 13. (See EXHAUST GAS TEMPERATURE SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
4	INSPECT EXHAUST GAS TEMPERATURE SENSOR No.1 CONNECTOR CONDITION •  Switch the ignition OFF. •  Disconnect the exhaust gas temperature sensor No.1 connector. •  Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection. •  Is the connector normal?	Yes	Go to the next step.
		No	Repair or replace the connector, then go to Step 13.
5	INSPECT EXHAUST GAS TEMPERATURE SENSOR No.1 •  Inspect exhaust gas temperature sensor No.1. (See EXHAUST GAS TEMPERATURE SENSOR INSPECTION [SKYACTIV-D 2.2].) •  Is exhaust gas temperature sensor No.1 normal?	Yes	Go to the next step.
		No	Replace exhaust gas temperature sensor No.1, then go to Step 13. (See EXHAUST GAS TEMPERATURE SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
6	INSPECT EXHAUST GAS TEMPERATURE SENSOR No.2 CONNECTOR CONDITION •  Switch the ignition OFF. •  Disconnect the exhaust gas temperature sensor No.2 connector. •  Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection. •  Is the connector normal?	Yes	Go to the next step.
		No	Repair or replace the connector, then go to Step 13.
7	INSPECT EXHAUST GAS TEMPERATURE SENSOR No.2 •  Inspect exhaust gas temperature sensor No.2. (See EXHAUST GAS TEMPERATURE SENSOR INSPECTION [SKYACTIV-D 2.2].) •  Is exhaust gas temperature sensor No.2 normal?	Yes	Without SCR system •  Go to Step 12. With SCR system •  Go to the next step.
		No	Replace exhaust gas temperature sensor No.2, then go to Step 13. (See EXHAUST GAS TEMPERATURE SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
8	INSPECT EXHAUST GAS TEMPERATURE SENSOR No.4 CONNECTOR CONDITION •  Switch the ignition OFF. •  Disconnect the exhaust gas temperature sensor No.4 connector. •  Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection. •  Is the connector normal?	Yes	Go to the next step.
		No	Repair or replace the connector, then go to Step 13.
9	INSPECT EXHAUST GAS TEMPERATURE SENSOR No.4 •  Inspect exhaust gas temperature sensor No.4. (See EXHAUST GAS TEMPERATURE SENSOR INSPECTION [SKYACTIV-D 2.2].) •  Is exhaust gas temperature sensor No.4 normal?	Yes	Go to the next step.
		No	Replace exhaust gas temperature sensor No.4, then go to Step 13. (See EXHAUST GAS TEMPERATURE SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
10	INSPECT EXHAUST GAS TEMPERATURE SENSOR No.5 CONNECTOR CONDITION •  Switch the ignition OFF. •  Disconnect the exhaust gas temperature sensor No.5 connector. •  Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection. •  Is the connector normal?	Yes	Go to the next step.
		No	Repair or replace the connector, then go to Step 13.
11	INSPECT EXHAUST GAS TEMPERATURE SENSOR No.5 •  Inspect exhaust gas temperature sensor No.5. (See EXHAUST GAS TEMPERATURE SENSOR INSPECTION [SKYACTIV-D 2.2].) •  Is exhaust gas temperature sensor No.2 normal?	Yes	Go to the next step.
		No	Replace exhaust gas temperature sensor No.5, then go to Step 13. (See EXHAUST GAS TEMPERATURE SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
12	INSPECT PCM CONNECTOR CONDITION •  Disconnect the PCM connector. •  Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection. •  Is the connector normal?	Yes	Go to the next step.
		No	Repair or replace the connector, then go to the next step.
13	VERIFY THAT REPAIRS HAVE BEEN COMPLETED •  Reconnect all the disconnected connectors. •  Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC. (See CLEARING DTC [PCM (SKYACTIV-D 2.2)].) •  Leave the vehicle for 6 h or more. •  Switch the ignition ON (engine off) or leave for 1 min while idling. •  Display the DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].) •  Is DTC P242B:00 displayed?	Yes	Repeat the inspection from Step 1. •  If the malfunction recurs, replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
		No	Go to the next step.
14	VERIFY OTHER DTCs •  Has any other DTC or pending code been stored?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-D 2.2)].)
		No	DTC troubleshooting completed.