| DTC P1607 (0-2): | Malfunction in ECM/PCM Internal Circuit |
| 1. | Reset the ECM/PCM. |
| 2. | Turn the ignition switch ON (II). |
| 3. | Wait 40 seconds. Is DTC P1607 indicated? YES - Substitute a known-good ECM/PCM and recheck. If symptom/indication goes away, replace the original ECM/ PCM.n NO - Intermittent failure, system is OK at this time.n |