DTC P0340:00 [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5]

id0102h9703700

DTC P0340:00

Intake CMP sensor circuit problem

DETECTION CONDITION

•  The intake CMP sensor input signal pattern, received while the crankshaft rotates 24 times, is incorrect.

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 (Mode 2)/Snapshot data is available.

•  DTC is stored in the PCM memory.

FAIL-SAFE FUNCTION

•  Sets the electric variable valve timing control to the maximum cam retard mode.

•  Inhibits traction control.

POSSIBLE CAUSE

•  Intake CMP sensor connector or terminals malfunction

•  Short to ground or open circuit in intake CMP sensor power supply circuit

―  Short to ground in wiring harness between ENGINE1 15 A fuse and intake CMP sensor terminal C

―  ENGINE1 15 A fuse malfunction

―  Open circuit in wiring harness between main relay terminal D and intake CMP sensor terminal C

•  Short to ground in wiring harness between intake CMP sensor terminal A and PCM terminal 1Y

•  PCM connector or terminals malfunction

•  Short to power supply in wiring harness between intake CMP sensor terminal A and PCM terminal 1Y

•  Intake CMP sensor signal circuit and ground circuit are shorted to each other

•  Open circuit in wiring harness between the following terminals:

―  Intake CMP sensor terminal A—PCM terminal 1Y

―  Intake CMP sensor terminal B—PCM terminal 1AC

•  Intake CMP sensor malfunction

―  Intake CMP sensor is dirty

―  Intake CMP sensor pulse wheel malfunction

―  Damage to the detection area of the intake CMP sensor

•  CKP sensor connector or terminals malfunction

•  Loose timing chain or improper valve timing

•  PCM malfunction

DTC P0340:00	Intake CMP sensor circuit problem
DETECTION CONDITION	• The intake CMP sensor input signal pattern, received while the crankshaft rotates 24 times, is incorrect. 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 (Mode 2)/Snapshot data is available. • DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION	• Sets the electric variable valve timing control to the maximum cam retard mode. • Inhibits traction control.
POSSIBLE CAUSE	• Intake CMP sensor connector or terminals malfunction • Short to ground or open circuit in intake CMP sensor power supply circuit ― Short to ground in wiring harness between ENGINE1 15 A fuse and intake CMP sensor terminal C ― ENGINE1 15 A fuse malfunction ― Open circuit in wiring harness between main relay terminal D and intake CMP sensor terminal C • Short to ground in wiring harness between intake CMP sensor terminal A and PCM terminal 1Y • PCM connector or terminals malfunction • Short to power supply in wiring harness between intake CMP sensor terminal A and PCM terminal 1Y • Intake CMP sensor signal circuit and ground circuit are shorted to each other • Open circuit in wiring harness between the following terminals: ― Intake CMP sensor terminal A—PCM terminal 1Y ― Intake CMP sensor terminal B—PCM terminal 1AC • Intake CMP sensor malfunction ― Intake CMP sensor is dirty ― Intake CMP sensor pulse wheel malfunction ― Damage to the detection area of the intake CMP sensor • CKP sensor connector or terminals malfunction • Loose timing chain or improper valve timing • PCM malfunction

Diagnostic Procedure

STEP	INSPECTION		ACTION
1	VERIFY FREEZE FRAME DATA (MODE 2)/SNAPSHOT DATA HAS BEEN RECORDED • Has the FREEZE FRAME DATA (Mode 2)/snapshot data been recorded?	Yes	Go to the next step.
1		No	Record the FREEZE FRAME DATA (Mode 2)/snapshot data on the repair order, then go to the next step.
2	VERIFY RELATED SERVICE 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.
2		No	Go to the next step.
3	VERIFY RELATED PENDING CODE AND/OR DTC • Switch the ignition off, then ON (engine off). • Perform the Pending Trouble Code Access Procedure and DTC Reading Procedure. (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) • Are any other PENDING CODEs and/or DTCs present?	Yes	Go to the applicable PENDING CODE or DTC inspection. (See DTC TABLE [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].)
3		No	Go to the next step.
4	INSPECT INTAKE CMP SENSOR CONNECTOR CONDITION • Switch the ignition off. • Disconnect the intake CMP sensor connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is there any malfunction?	Yes	Repair or replace the connector and/or terminals, then go to Step 15.
4		No	Go to the next step.
5	INSPECT INTAKE CMP SENSOR POWER SUPPLY CIRCUIT FOR SHORT TO GROUND OR OPEN CIRCUIT • Verify that the intake CMP sensor connector is disconnected. • Switch the ignition ON (engine off). Note • Another DTC may be stored by the PCM detecting an open circuit. • Measure the voltage at the intake CMP sensor terminal C (wiring harness-side). • Is the voltage B+?	Yes	Go to the next step.
5		No	Inspect the ENGINE1 15 A fuse. • If the fuse is blown: ― Refer to the wiring diagram and verify whether or not there is a common connector between ENGINE1 15 A fuse and intake CMP sensor terminal C. 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. • Replace the fuse. • If the fuse is damaged: ― Replace the fuse. • If the fuse is normal: ― Refer to the wiring diagram and verify whether or not there is a common connector between main relay terminal D and intake CMP sensor terminal C. 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 Step 15.
6	INSPECT INTAKE CMP SENSOR SIGNAL CIRCUIT FOR SHORT TO GROUND • Verify that the intake CMP sensor connector is disconnected. • Switch the ignition off. • Inspect for continuity between intake CMP sensor terminal A (wiring harness-side) and body ground. • Is there continuity?	Yes	If the short to ground circuit could be detected in the wiring harness: • Refer to the wiring diagram and verify whether or not there is a common connector between intake CMP sensor terminal A and PCM terminal 1Y. 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. If the short to ground circuit could not be detected in the wiring harness: • Replace the PCM (short to ground in the PCM internal circuit). (See PCM REMOVAL/INSTALLATION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) Go to Step 15.
6		No	Go to the next step.
7	INSPECT PCM CONNECTOR CONDITION • Disconnect the PCM connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is there any malfunction?	Yes	Repair or replace the connector and/or terminals, then go to Step 15.
7		No	Go to the next step.
8	INSPECT INTAKE CMP SENSOR SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY • Verify that the intake CMP sensor and PCM connectors are disconnected. • Switch the ignition ON (engine off). Note • Another DTC may be stored by the PCM detecting an open circuit. • Measure the voltage at the intake CMP sensor terminal A (wiring harness-side). • Is the voltage 0 V?	Yes	Go to the next step.
8		No	Refer to the wiring diagram and verify whether or not there is a common connector between intake CMP sensor terminal A and PCM terminal 1Y. 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 15.
9	INSPECT INTAKE CMP SENSOR SIGNAL CIRCUIT AND GROUND CIRCUIT FOR SHORT TO EACH OTHER • Verify that the intake CMP sensor and PCM connectors are disconnected. • Switch the ignition off. • Inspect for continuity between intake CMP sensor terminals A and B (wiring harness-side). • Is there continuity?	Yes	Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals: • Intake CMP sensor terminal A—PCM terminal 1Y • Intake CMP sensor terminal B—PCM terminal 1AC 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 each other. • Repair or replace the malfunctioning part. If there is no common connector: • Repair or replace the wiring harness which has a short to each other. Go to Step 15.
9		No	Go to the next step.
10	INSPECT INTAKE CMP SENSOR CIRCUIT FOR OPEN CIRCUIT • Verify that the intake CMP sensor and PCM connectors are disconnected. • Inspect for continuity between the following terminals (wiring harness-side): ― Intake CMP sensor terminal A—PCM terminal 1Y ― Intake CMP sensor terminal B—PCM terminal 1AC • Is there continuity?	Yes	Go to the next step.
10		No	Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals: • Intake CMP sensor terminal A—PCM terminal 1Y • Intake CMP sensor terminal B—PCM terminal 1AC 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 Step 15.
11	INSPECT INTAKE CMP SENSOR • Inspect the intake CMP sensor. (See CAMSHAFT POSITION (CMP) SENSOR INSPECTION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) • Is there any malfunction?	Yes	Replace the intake CMP sensor, then go to Step 15. (See CAMSHAFT POSITION (CMP) SENSOR REMOVAL/INSTALLATION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].)
11		No	Go to the next step.
12	INSPECT CKP SENSOR CONNECTOR CONDITION • Switch the ignition off. • Disconnect the CKP sensor connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is there any malfunction?	Yes	Repair or replace the connector and/or terminals, then go to Step 15.
12		No	Go to the next step.
13	INSPECT CKP SENSOR • Inspect the CKP sensor. (See CRANKSHAFT POSITION (CKP) SENSOR INSPECTION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) • Is there any malfunction?	Yes	Replace the CKP sensor, then go to Step 15. (See CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].)
13		No	Go to the next step.
14	VERIFY ASSEMBLY CONDITION OF TIMING CHAIN • Verify the condition of the timing chain assembly (intake valve timing, looseness, jumping). (See TIMING CHAIN REMOVAL/INSTALLATION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) • Is there any malfunction?	Yes	Repair or replace the malfunctioning part. Assemble the timing chain using the correct timing, then go to the next step. (See TIMING CHAIN REMOVAL/INSTALLATION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].)
14		No	Go to the next step.
15	VERIFY DTC TROUBLESHOOTING COMPLETED • Always reconnect all disconnected connectors. • Clear the DTC from the PCM memory using the M-MDS. (See AFTER REPAIR PROCEDURE [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) • Start the engine and race it. • Perform the KOER self test. (See KOEO/KOER SELF TEST [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) • Is the same DTC present?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the PCM. (See PCM REMOVAL/INSTALLATION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) Go to the next step.
15		No	Go to the next step.
16	VERIFY AFTER REPAIR PROCEDURE • Perform the “AFTER REPAIR PROCEDURE”. (See AFTER REPAIR PROCEDURE [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].)
16		No	DTC troubleshooting completed.