Test Description
The numbers below refer to the step numbers on the diagnostic table.
- 3: This step determines if the fault is present.
- 6: This step simulates a CKP sensor signal to the PCM. If the PCM receives the signal, the fuel pump will operate for about two seconds.
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 - Vehicle? | - | Go to Step 2 | Go to Diagnostic System Check - Vehicle |
| 2 | Does the engine start and continue to run? | - | Go to Step 3 | Go to Step 4 |
| 3 |
|
- | Go to Step 4 | Go to Testing for Intermittent Conditions and Poor Connections |
| 4 |
CAUTION:
Before proceeding, remove the fuses for the ignition coil and fuel injector feed circuits in order to prevent personal injury from engine rotation, sparks, and excessive engine fueling.
IMPORTANT:
An internally shorted CAM sensor can cause DTC P0335 to set. Test this circuit for a short before proceeding with this diagnostic table. Refer to Circuit Testing
and Wiring Repairs
.
|
B+ | Go to Step 5 | Go to Step 7 |
| 5 | Measure the voltage between the CKP sensor 12-volt reference circuit and the CKP sensor low reference circuit with the DMM. Does the DMM display the specified value? |
B+ | Go to Step 6 | Go to Step 8 |
| 6 | Momentarily connect the test lamp between the CKP sensor signal circuit and the CKP sensor 12-volt reference circuit. Does the fuel pump operate when voltage was applied to the CKP sensor signal circuit? |
- | Go to Step 11 | Go to Step 9 |
| 7 | Test for an open or a short to ground in the CKP sensor 12-volt reference circuit. Refer to Circuit Testing
and Wiring Repairs
. Did you find and correct the condition? |
- | Go to Step 16 | Go to Step 14 |
| 8 | Test for an open or for high resistance in the CKP sensor low reference circuit. Refer to Circuit Testing
and Wiring Repairs
. Did you find and correct the condition? |
- | Go to Step 16 | Go to Step 14 |
| 9 | Test the CKP sensor signal circuit for the following conditions:
Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 16 | Go to Step 10 |
| 10 | Inspect for poor connections at the CKP sensor. Refer to Testing for Intermittent Conditions and Poor Connections
and Repairing Connector Terminals
. Did you find and correct the condition? |
- | Go to Step 16 | Go to Step 14 |
| 11 |
|
- | Go to Step 16 | Go to Step 12 |
| 12 | Inspect the CKP reluctor wheel for the following conditions:
Did you find and correct the condition? |
- | Go to Step 16 | Go to Step 13 |
| 13 | Replace the CKP sensor. Refer to Crankshaft Position (CKP) Sensor Replacement
. Did you complete the repair? |
- | Go to Step 16 | - |
| 14 | Inspect for poor connections at the powertrain control module (PCM). Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
. Did you complete the repair? |
- | Go to Step 16 | Go to Step 15 |
| 15 | Replace the PCM. Refer to Control Module References
for replacement, setup, and programming. Did you complete the replacement? |
- | Go to Step 16 | - |
| 16 |
|
- | Go to Step 17 | Go to Step 2 |
| 17 | Observe the Capture Info with a scan tool. Are there any DTCs that have not been diagnosed? |
- | Go to Diagnostic Trouble Code (DTC) List - Vehicle | System OK |