P1342

DTC P1340 Camshaft Position Sensor "A" (Bank 1 Sensor 2)
DTC P1342 Camshaft Position Sensor "A" Low Input (MRE)
DTC P1343 Camshaft Position Sensor "A" High Input (MRE)

DESCRIPTION

DTC Detection Condition:

The camshaft position sensor (G signal) consists of a magnet, iron core and pickup coil. The camshaft drive gear (LH) has 3 teeth on its inner circumstance. When the camshaft gear rotates, air gap changes between the protrusion on the gear and the pickup coil. The change affects the magnetic field and results in changes in the resistance of the MRE element.

The crankshaft signal plate has 34 teeth and is mounted on the crankshaft. The crankshaft position sensor generates 34 signals at every engine revolution. The ECM detects the standard crankshaft angle based on the G signal, and the actual crankshaft angle and engine speed by the NE signal.

MONITOR DESCRIPTION

Monitor Strategy:

Typical Enabling Conditions:

Typical Malfunction Thresholds:

Component Operating Range:

The camshaft position sensor (G signal) consists of a magnet and MRE element.

The camshaft drive gear has 3 teeth on its inner circumference. When the camshaft gear rotates, air gap changes between the protrusion on the gear and the pickup coil. The change affects the magnetic field and results in changes in the resistance of the MRE element. The crankshaft angle sensor plate has 34 teeth and outputs 34 signals at every engine revolution. The ECM detects the standard crankshaft angle based on the G signal, and the actual crankshaft angle and engine speed by the NE signal.

Wiring Diagram:

Step 1:

Step 2-4:

Step 4(Continued)-6:

INSPECTION PROCEDURE

HINT: Read freeze frame data using the intelligent tester or Techstream. Freeze frame data records the engine conditions when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was running or stopped, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.