DTC P0340:00 [ZJ, ZY]

id0102c0703700

DTC P0340:00

CMP sensor circuit problem

DETECTION CONDITION

•  If there is no CMP sensor signal input even though there is a CKP sensor signal input.

•  If a malfunction is detected in the input pulse pattern from the CMP sensor.

Diagnostic support note

•  This is a continuous monitor (CCM).

•  The MIL illuminates if the PCM detects the above malfunction condition in the first drive cycle.

•  FREEZE FRAME DATA is available.

•  The DTC is stored in the PCM memory.

POSSIBLE CAUSE

•  CMP sensor connector or terminals malfunction

•  Short to ground in wiring harness between the following terminals:

―  CMP sensor terminal A and PCM terminal 2I

―  CMP sensor terminal B and PCM terminal 2N

•  PCM connector or terminals malfunction

•  Short to power supply in wiring harness between the following terminals:

―  CMP sensor terminal B and PCM terminal 2N

―  CMP sensor terminal C and PCM terminal 2M

•  CMP sensor malfunction

•  Open circuit in wiring harness between the following terminals:

―  CMP sensor terminal A and PCM terminal 2I

―  CMP sensor terminal B and PCM terminal 2N

―  CMP sensor terminal C and PCM terminal 2M

•  PCM malfunction

DTC P0340:00	CMP sensor circuit problem
DETECTION CONDITION	• If there is no CMP sensor signal input even though there is a CKP sensor signal input. • If a malfunction is detected in the input pulse pattern from the CMP sensor. Diagnostic support note • This is a continuous monitor (CCM). • The MIL illuminates if the PCM detects the above malfunction condition in the first drive cycle. • FREEZE FRAME DATA is available. • The DTC is stored in the PCM memory.
POSSIBLE CAUSE	• CMP sensor connector or terminals malfunction • Short to ground in wiring harness between the following terminals: ― CMP sensor terminal A and PCM terminal 2I ― CMP sensor terminal B and PCM terminal 2N • PCM connector or terminals malfunction • Short to power supply in wiring harness between the following terminals: ― CMP sensor terminal B and PCM terminal 2N ― CMP sensor terminal C and PCM terminal 2M • CMP sensor malfunction • Open circuit in wiring harness between the following terminals: ― CMP sensor terminal A and PCM terminal 2I ― CMP sensor terminal B and PCM terminal 2N ― CMP sensor terminal C and PCM terminal 2M • PCM malfunction

Diagnostic procedure

STEP	INSPECTION		ACTION
1	VERIFY FREEZE FRAME DATA HAS BEEN RECORDED • Has the FREEZE FRAME DATA been recorded?	Yes	Go to the next step.
1		No	Record the FREEZE FRAME 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	INSPECT CMP SENSOR CONNECTOR AND TERMINALS • Turn the ignition switch off. • Disconnect the CMP sensor connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is there any malfunction?	Yes	Repair or replace the connector or terminals, then go to Step 9.
3		No	Go to the next step.
4	INSPECT CMP SENSOR CIRCUIT FOR SHORT TO GROUND • CMP sensor connector is disconnected. • Inspect for continuity between the following terminals (wiring harness-side) and body ground: ― CMP sensor terminal A ― CMP sensor terminal B • Is there continuity?	Yes	If the short to ground circuit could be detected: • Repair or replace the wiring harness for a possible short to ground. If the short to ground circuit could not be detected: • Replace the PCM (short to ground in PCM internal circuit). (See PCM REMOVAL/INSTALLATION [ZJ, ZY].) Go to Step 9.
4		No	Go to the next step.
5	INSPECT PCM CONNECTOR AND TERMINALS • 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 or terminals, then go to Step 9.
5		No	Go to the next step.
6	INSPECT CMP SENSOR CIRCUIT FOR SHORT TO POWER SUPPLY • CMP sensor and PCM connectors are disconnected. • Turn the ignition switch to the ON position (engine off). • Measure the voltage between the following terminals (wiring harness-side) and body ground: ― CMP sensor terminal B ― CMP sensor terminal C • Is there any voltage?	Yes	Repair or replace the wiring harness for a possible short to power supply, then go to Step 9.
6		No	Go to the next step.
7	INSPECT CMP SENSOR • Turn the ignition switch off. • Inspect the CMP sensor. (See CAMSHAFT POSITION (CMP) SENSOR INSPECTION [ZJ, ZY].) • Is there any malfunction?	Yes	Replace the CMP sensor, then go to Step 9. (See CAMSHAFT POSITION (CMP) SENSOR REMOVAL/INSTALLATION [ZJ, ZY].)
7		No	Go to the next step.
8	INSPECT CMP SENSOR CIRCUIT FOR OPEN CIRCUIT • CMP sensor and PCM connectors are disconnected. • Inspect for continuity between the following terminals (wiring harness-side): ― CMP sensor terminal A and PCM terminal 2I ― CMP sensor terminal B and PCM terminal 2N ― CMP sensor terminal C and PCM terminal 2M • Is there continuity?	Yes	Go to the next step.
8		No	Repair or replace the wiring harness for a possible open circuit, then go to the next step.
9	VERIFY DTC TROUBLESHOOTING COMPLETED • Make sure to reconnect all disconnected connectors. • Clear the DTC from the PCM memory using the M-MDS. (See AFTER REPAIR PROCEDURE [ZJ, ZY].) • Start the engine. • Run the engine when the MAF PID is more than 1.43 g/s {0.189 lb/min}. • Perform the DTC Reading Procedure. (See ON-BOARD DIAGNOSTIC TEST [ZJ, ZY].) • Is the same DTC present?	Yes	Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [ZJ, ZY].)
9		No	Go to the next step.
10	VERIFY AFTER REPAIR PROCEDURE • Perform the “AFTER REPAIR PROCEDURE”. (See AFTER REPAIR PROCEDURE [ZJ, ZY].) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [ZJ, ZY].)
10		No	DTC troubleshooting completed.