| DTC P0335 (4-1): | CKP Sensor No Signal |
| 1. | Reset the ECM/PCM. |
| 2. | Start the engine. Is DTC P0335 and/or P0339 indicated? YES - Go to 3. NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the CKP sensor and at the ECM/PCM.n |
| 3. | Turn the ignition switch OFF. |
| 4. | Disconnect the CKP sensor 3P connector. |
| 5. | Turn the ignition switch ON (II). |
| 6. | Measure voltage between the CKP sensor 3P connector terminal No. 1 and body ground.
Is there battery voltage? YES - Go to 7. NO - Repair open in the wire between the PGM-FI main relay 1 and the CKP sensor.n |
| 7. | Measure voltage between the CKP sensor 3P connector terminal No. 2 and body ground.
Is there about 5 V? YES - Go to 8. NO - Go to 10. |
| 8. | Measure voltage between the CKP sensor 3P connector terminals No. 1 and No. 3.
Is there battery voltage? YES - Go to 9. NO - Repair open in the wire between the CKP sensor and G101.n |
| 9. | Substitute a known-good CKP sensor and recheck. Is DTC P0335 and/or P0339 indicated? YES - Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM, then recheck. If the symptom/indication goes away with a known-good ECM/PCM, replace the original ECM/ PCM.n NO - Replace the original CKP sensor.n |
| 10. | Measure voltage between ECM/PCM connector terminal A7 and body ground.
Is there about 5 V? YES - Repair open in the wire between the ECM/PCM (A7) and the CKP sensor.n NO - Go to 11. |
| 11. | Turn the ignition switch OFF. |
| 12. | Disconnect ECM/PCM connector A (31P). |
| 13. | Check for continuity between ECM/PCM connector terminal A7 and body ground.
Is there continuity? YES - Repair short in the wire between the ECM/PCM (A7) and the CKP sensor.n NO - Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM, then recheck. If the symptom/indication goes away with a known-good ECM/PCM, replace the original ECM/ PCM.n |