DTC P0341 Camshaft Position (CMP) Sensor Performance. Cadillac Seville 2000

For 1990-2009 cars only

Makes 🢒 Cadillac 🢒 2000 🢒 Seville 🢒 Engine 🢒 Engine Controls - 4.6L 🢒 DTC P0341 Camshaft Position (CMP) Sensor Performance

Engine Controls Component Views
Ignition Control Module- Front Bank
OBD II Symbol Description Notice
Handling ESD Sensitive Parts Notice

Circuit Description

The PCM uses the camshaft position (CMP) sensor signal to determine the position of the valve train in relation to the engine cylinders. The PCM uses the CMP signal to sequence the ignition system, and the fuel injectors.

The PCM supplies power and ground to the CMP sensor. The CMP sensor returns a signal pulse in responds to the reluctor track, located on the camshaft sprocket. If the PCM detects an incorrect correlation between the CMP signal and the CKP signals, DTC P0341 will set.

Conditions for Running the DTC

Engine running less than 2000 RPM

Conditions for Setting the DTC

The PCM detects an incorrect correlation between the CMP signal and the CKP signals.

Action Taken When the DTC Sets

•	The PCM illuminates the malfunction indicator lamp (MIL) during the second consecutive trip in which the diagnostic test runs and fails.

•	The PCM stores the conditions present when the DTC set as Freeze Frame/Failure Records data.

Conditions for Clearing the MIL/DTC

•	The PCM will turn the MIL OFF after the third consecutive trip in which the diagnostic runs and passes.

•	The history DTC will clear after 40 consecutive warm-up cycles have occurred without a malfunction.

•	The DTC can be cleared by using the scan tool Clear DTC Information function.

Diagnostic Aids

If the condition is intermittent, refer to Intermittent Conditions .

DTC P0340 may set in addition to DTC P0341. If the calibrated number of cylinder events occur with a loss of CMP signal, DTC P0340 will set. An intermittent loss of signal, signal circuit noise, or poor connections at the PCM and CMP sensor will set DTC P0340 and P0341.

If the camshaft to crankshaft timing relationship is incorrect, DTC P0340 will not set. The PCM still receives the correct number CMP signal pulses. However, because the signal occurs at an incorrect correlation to the crankshaft signals, DTC P0341 will set.

Step

Action

Values

Yes

Did you perform the Powertrain On Board Diagnostic (OBD) System Check?

Go to Step 2

Go to Powertrain On Board Diagnostic (OBD) System Check

Is DTC P0340 also set?

Go to Step 3

Go to Step 7

Test the CMP ignition feed circuit for the following conditions:

•	Intermittent open

•	Poor connections at the PCM and the CMP sensor

If a condition is found, repair as necessary. Refer to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 8

Go to Step 4

Test the CMP signal circuit for the following conditions:

•	An intermittent open

•	An intermittent short to ground or CMP sensor ground

•	An intermittent short to the CMP ignition feed circuit

•	Poor connections at the PCM and the CMP sensor

If a condition is found, repair as necessary. Refer to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 8

Go to Step 5

Test the CMP sensor ground circuit for the following conditions:

•	An intermittent open

•	Poor connections at the PCM and the CMP sensor

If a condition is found, repair as necessary. Refer to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 8

Go to Step 6

Test the CMP harness wiring for improper routing near high frequency devices.
If a condition is found, correct as necessary.

Did you find and correct the condition?

Go to Step 8

Go to Diagnostic Aids

Test the valve train for the following conditions:

•	Damaged or misaligned camshaft timing components

•	Proper camshaft timing, refer to Setting Camshaft Timing in Engine Mechanical.

If a condition is found, repair as necessary. Refer to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 8

Go to Diagnostic Aids

Review and record the scan tool Fail Records data.
Clear the DTCs
Operate the vehicle within the Conditions for Running the DTC listed above.
Using the scan tool, monitor the Specific DTC information for DTC P0341 until the test runs.

Does the scan tool indicate that DTC P0341 passed?

System OK

Go to Step 2