DTC P0342 [MZR-CD (RF Turbo)]

BME010200102274

DTC P0342

CMP sensor circuit low input

DETECTION CONDITION

• The PCM monitors the input signal from the CMP sensor and the CKP sensor while the engine is running. If the input signal from the CMP sensor is not input while the PCM detects 255 pulses from the CKP sensor, the PCM determines that there is a malfunction in the CMP sensor circuit.
Diagnostic support note
• 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 malfunction
• Connector or terminal malfunction
• Short to GND in wiring harness between CMP sensor terminal A and PCM terminal 81
• Short to GND in wiring harness between CMP sensor terminal B and PCM terminal 55
• Open circuit in wiring harness between CMP sensor terminal A and PCM terminal 81
• Open circuit in wiring harness between CMP sensor terminal B and PCM terminal 55
• Improper CMP sensor air gap
• CMP sensor pulsar malfunction
• PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
• Has FREEZE FRAME DATA been recorded?
Yes
Go to the next step.
No
Record the FREEZE FRAME DATA on the repair order, then go to the next step.
2
VERIFY RELATED REPAIR INFORMATION AVAILABILITY
• Verify related Service Information availability.
• Is any related repair 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
VERIFY CURRENT SIGNAL STATUS: IS CONCERN INTERMITTENT OR CONSTANT?
• Connect the WDS or equivalent to the DLC-2.
• Clear the DTC from the PCM memory using the WDS or equivalent.
• Start the engine.
• Is the same DTC present?
Yes
Go to the next step.
No
Intermittent concern exists.
Perform the "INTERMITTENT CONCERN TROUBLESHOOTING".
4
INSPECT CMP SENSOR CONNECTOR FOR POOR CONNECTION
• Turn the engine switch off.
• Inspect for poor connection (such as damaged/pulled-out terminals, corrosion).
• Is there any malfunction?
Yes
Repair or replace the suspected terminal, go to Step 11.
No
Go to the next step.
5
INSPECT CMP SENSOR CIRCUIT FOR SHORT TO GND
• Turn the engine switch off.
• Inspect for continuity between the following terminals and body GND:
- CMP sensor terminal A and body GND.
- CMP sensor terminal B and body GND.
• Is there continuity?
Yes
Repair or replace the wiring harness for a short to GND, go to Step 11.
No
Go to the next step.
6
INSPECT CMP SENSOR
• Inspect the CMP sensor.
• Is there any malfunction?
Yes
Replace the CMP sensor, go to Step 11.
No
Go to the next step.
7
INSPECT CMP SENSOR AIR GAP
• Measure the CMP sensor air gap.
• Is the CMP sensor air gap normal?
Specification

0.5-1.5 mm {0.020-0.059 in}

Yes
Go to the next step.
No
Replace the CMP sensor, then go to Step 11.
8
INSPECT CMP SENSOR PULSAR
• Inspect the CMP sensor pulsar for damage and/or cracks.
• Is there any malfunction?
Yes
Replace the camshaft, then go to Step 11.
No
Go to the next step.
9
INSPECT PCM CONNECTOR FOR POOR CONNECTION
• Turn the engine switch off.
• Inspect for poor connection (such as damaged/pulled-out terminals, corrosion).
• Is there any malfunction?
Yes
Repair or replace the suspected terminal, go to Step 11.
No
Go to the next step.
10
INSPECT CMP SENSOR FOR OPEN CIRCUIT
• Turn the engine switch off.
• Inspect for continuity between the following terminals:
- CMP sensor terminal A and PCM terminal 81.
- CMP sensor terminal B and PCM terminal 55.
• Is there continuity?
Yes
Go to the next step.
No
Repair or replace the wiring harness for an open circuit, go to the next step.
11
VERIFY TROUBLESHOOTING OF DTC P0342 COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear the DTC from the PCM memory using the WDS or equivalent.
• Start the engine and idle it.
• Is the same DTC present?
Yes
Replace the PCM, go to the next step.
No
Go to the next step.
12
VERIFY AFTER REPAIR PROCEDURE
• Perform the Repair Verification Drive Mode.
• Are any DTCs present?
Yes
Go to the applicable DTC inspection.
No
Troubleshooting completed.