## DTC Troubleshooting: P0335 (4-1), P0336 (4-2)

DTC P0335 (4-1): | CKP Sensor No Signal
DTC P0336 (4-2): | CKP Sensor Intermittent Interruption

1. | Reset the ECM/PCM.

2. | Start the engine. Is DTC P0335 and/or P0336 indicated? YES - Go to 3. NO - Intermittent failure, system is OK at this time. Check for poor connections or loose wires 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 P0336 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