DTC P0344:00 [MZI-3.7]

id0102d2313300

DTC P0344:00 | CMP sensor (RH) circuit intermittent
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DETECTION CONDITION | • The test fails when the PCM detects an intermittent signal from the CMP sensor.
POSSIBLE CAUSE | • Connector or terminal malfunction • Short to power supply between CMP sensor (RH) terminal A and PCM terminal 2X • Short to ground circuit between CMP sensor (RH) terminal A and PCM terminal 2X • Open circuit between CMP sensor (RH) terminal A and PCM terminal 2X • Open circuit between CMP sensor (RH) terminal B and PCM terminal 2AB • CMP sensor (RH) malfunction • Sensor shielding malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | VERIFY FREEZE FRAME DATA HAS BEEN RECORDED • Has FREEZE FRAME DATA been recorded? | Yes | Go to the next step.
No | Record 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.
No | Go to the next step.
3 | CLEAR AND ATTEMPT TO RETRIEVE THE DTC Note • If DTCs P0340:00, P0344:00, P0345:00 or P0349:00 are present, ignition, alternator noise, radio frequency interference and CKP concerns should be considered. • Clear the DTC from the PCM memory using the M-MDS. • Turn the ignition switch to the ON position (Engine running). • Increase engine speed to more than 1,500 rpm for 10 s. Repeat this 3 times. • Retrieve the continuous memory DTCs. • The same DTC present? | Yes | Go to the next step.
No | Perform the “INTERMITTENT CONCERN TROUBLESHOOTING”. Then go to Step 11.
4 | CHECK THE GENERATOR FOR EXCESSIVE ELECTRICAL NOISE Note • If the generator/regulator is electrically noisy, the noise decreases when the terminal B is disconnected. • Turn the ignition switch to the ON position (Engine running). • Monitor the generator for an audible electric noise. • Turn the ignition switch off. • Generator/regulator terminal B disconnected. • Turn the ignition switch to the ON position (Engine running). • With the engine running, determine if the generator is still noisy. • Does the noise remain constant when the terminal B is disconnected? | Yes | Go to the next step.
No | • Inspect the charging system, then go to Step 11. ― Drive belt damaged and misinstallation ― Generator pulley or generator misinstallation
5 | INSPECT CMP SENSOR (RH) CONNECTOR FOR POOR CONNECTION • Turn the ignition switch off. • Disconnect the CMP sensor (RH) connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Are there any malfunction? | Yes | Repair or replace suspected part, then go to Step 11.
No | Go to the next step.
6 | INSPECT CMP SENSOR SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY • CMP sensor (RH) connector is disconnected. • Turn the ignition switch to the ON position (Engine off). • Measure voltage between CMP sensor (RH) terminal A (wiring harness-side) and body ground. • Is the voltage B+? | Yes | Repair or replace suspected part, then go to Step 11.
No | Go to the next step.
7 | INSPECT CMP SENSOR (RH) SIGNAL CIRCUIT FOR SHORT TO GROUND • CMP sensor (RH) connector is disconnected. • Turn the ignition switch off. • Check continuity between CMP sensor (RH) terminal A (wiring harness-side) and body ground. • Is there continuity? | Yes | Repair or replace suspected part, then go to Step 11.
No | Go to the next step.
8 | INSPECT PCM CONNECTOR FOR POOR CONNECTION • Turn the ignition switch off. • Disconnect PCM connector. • Check for poor connection (such as damaged, pulled-out pins, and corrosion). • Are there any malfunction? | Yes | Repair or replace suspected part, then go to Step 11.
No | Go to the next step.
9 | INSPECT CMP SENSOR (RH) CIRCUIT FOR OPEN CIRCUIT • CMP sensor (RH) and PCM connectors are disconnected. • Turn the ignition switch off. • Check continuity between the following circuits: ― CMP sensor (RH) terminal A (wiring harness-side) and PCM terminal 2X (wiring harness-side) ― CMP sensor (RH) terminal B (wiring harness-side) and PCM terminal 2AB (wiring harness-side) • Is there continuity? | Yes | Go to the next step.
No | Repair or replace suspected part, then go to Step 11.
10 | INSPECT CMP SENSOR (RH) • Inspect CMP sensor (RH). (See CAMSHAFT POSITION (CMP) SENSOR INSPECTION [MZI-3.7].) • Is there any malfunction? | Yes | Replace CMP sensor (RH), then go to the next step. (See CAMSHAFT POSITION (CMP) SENSOR REMOVAL/INSTALLATION [MZI-3.7].)
No | Go to the next step.
11 | VERIFY TROUBLESHOOTING OF DTC P0344:00 COMPLETED • Verify that all disconnected connectors reconnected. • Turn ignition switch to the ON position (Engine off). • Clear the DTC from the PCM memory using the M-MDS. • Start the engine. • Access the MAF PID using the M-MDS. • Is same DTC present? | Yes | Repeat the inspection from Step 1. • If the malfunction recurs, replace the PCM. (See PCM REMOVAL/INSTALLATION [MZI-3.7].) Go to the next step.
No | Go to the next step.
12 | VERIFY AFTER REPAIR PROCEDURE • Perform the “AFTER REPAIR PROCEDURE”. (See AFTER REPAIR PROCEDURE [MZI-3.7].) • Are any DTCs present? | Yes | Go to the applicable DTC inspection. (See DTC TABLE [MZI-3.7].)
No | Troubleshooting completed.