Conditions for Clearing the MIL/DTC

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

The control module turns OFF the malfunction indicator lamp (MIL) after 3 consecutive ignition cycles that the diagnostic runs and does not fail.
A current DTC, Last Test Failed, clears when the diagnostic runs and passes.
A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other emission related diagnostic.
Clear the MIL and the DTC with a scan tool.

DTC P0335

Step	Action	Values	Yes	No
Schematic Reference: Engine Controls Schematics Connector End View Reference: Powertrain Control Module (PCM) 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	Start the engine. Observe the CKP active counter on the scan tool. Does the CKP active counter increment?	-	Go to Step 3	Go to Step 4
3	Observe the Freeze Frame/Failure Records for this DTC. Turn OFF the ignition for 30 seconds. Start the engine. 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 4	Go to Intermittent Conditions
4	Turn OFF the ignition. Disconnect the powertrain control module (PCM) connector. Measure the resistance from the crankshaft position (CKP) sensor signal circuit to the low reference circuit of the CKP sensor with a DMM. Is the resistance within the specified range?	500-1,000 ohm	Go to Step 5	Go to Step 6
5	Test the CKP sensor circuits for a short to voltage or a short to ground. Refer to Circuit Testing in Wiring Systems. Did you find and correct the condition?	-	Go to Step 14	Go to Step 9
6	Test the CKP sensor circuits for the following conditions: An open A short across circuits A high resistance Refer to Circuit Testing in Wiring Systems. Did you find and correct the condition?	-	Go to Step 14	Go to Step 7
7	Test for an intermittent and for a poor connection at the PCM. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring System. Did you find and correct the condition?	-	Go to Step 14	Go to Step 8
8	Test for an intermittent and for a poor connection at the CKP sensor. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems. Did you find and correct the condition?	-	Go to Step 14	Go to Step 10
9	Test for shorted terminals and poor connections at the PCM. 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 14	Go to Step 13
10	Remove the CKP sensor. Refer to Crankshaft Position (CKP) Sensor Replacement . Visually inspect the CKP sensor for the following conditions: Foreign material passing between the CKP sensor and the reluctor wheel Physical damage Excessive air gap between the CKP sensor and the reluctor wheel Loose or improper installation Electromagnetic interference in the CKP sensor circuits Wiring rooted too closely to secondary ignition components Did you find and correct the conditions?	-	Go to Step 14	Go to Step 11
11	Visually inspect the CKP reluctor wheel for the following conditions: Physical damage Incorrect installation Excessive end play or looseness Refer to Crankshaft and Bearings Cleaning and Inspection in Engine Mechanical. Did you find and correct the condition?	-	Go to Step 14	Go to Step 12
12	Replace the CKP sensor. Refer to Crankshaft Position (CKP) Sensor Replacement . Did you complete the replacement?	-	Go to Step 14	-
13	Replace the PCM. Refer to Powertrain Control Module (PCM) Replacement . Did you complete the replacement?	-	Go to Step 14	-
14	Use the scan tool in order to clear the DTCs. Turn OFF the ignition for 30 seconds. Start the engine. 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. Did the DTC fail this ignition?	-	Go to Step 2	Go to Step 15
15	Observe the capture info with a scan tool. Are there any DTCs that have not been diagnosed?	-	Go to Diagnostic Trouble Code (DTC) List	System OK