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Home >> Cadillac >> 2004 >> CTS Base, 3.6 7 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Engine Controls - 2.6L & 3.2L - Diagnosis (DTC P0172 - P0446)) >> Diagnostic Trouble Codes >> DTC P0341 >> Test Description

Test Description

WARNING: This page is about a different variant/trim than selected.

The number below refers to the step number on the diagnostic table.

  1. 2:  This step inspects for electromagnetic interference (EMI) on the CMP sensor circuits.
DTC P0341

Step Action Yes No
Schematic Reference:  Engine Controls Schematics 
Connector End View Reference:  Engine Control Module (ECM) Connector End Views  or  Engine Controls Connector End Views 
1 Did you perform the Diagnostic System Check-Engine Controls? Go to Step 2  Go to Diagnostic System Check - Engine Controls
2 
IMPORTANT: If DTC P0342 or P0343 is set, diagnose those DTC's first.
  1. Inspect all circuits going to the CMP sensor for the following conditions:
    • Routed too close to secondary ignition wires or components
    • Routed too close to after-market add-on electrical equipment
    • Routed too close to solenoids, relays, and motors
  2. If you find incorrect routing, correct the harness routing.
Did you find and correct the condition?		 Go to Step 9  Go to Step 3 
3 Test for an intermittent and for a poor connection at the CMP sensor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 9  Go to Step 4 
4 Test for an intermittent and for a poor connection at the ECM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 9  Go to Step 5 
5
  1. Remove the CMP sensor. Refer to Camshaft Position (CMP) Sensor Replacement .
  2. Inspect the CMP sensor for signs of damage.
Did you find and correct the condition?		 Go to Step 9  Go to Step 6 
6 Inspect the reluctor wheel for signs of damage or looseness. Refer to Diagnostic Aids. If you find damage or looseness to the reluctor wheel, refer to Camshaft Replacement - Left in Engine Mechanical.
Did you find and correct the condition?		 Go to Step 9  Go to Step 7 
7 Replace the CMP sensor. Refer to Camshaft Position (CMP) Sensor Replacement .
Did you find and correct the condition?		 Go to Step 9  Go to Step 8 
8 Replace the ECM. Refer to Engine Control Module (ECM) Replacement .
Did you complete the replacement?		 Go to Step 9  -
9
  1. Clear the DTCs with a scan tool.
  2. Turn OFF the ignition for 30 seconds.
  3. Start the engine.
  4. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records.
Does the DTC fail this ignition?		 Go to Step 10  Go to Step 2 
10 Observe the Capture Info with a scan tool.
Are there any DTC's that have not been diagnosed?		 Go to Diagnostic Trouble Code (DTC) List System OK
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