| DTC P0108 (3-2): | MAP Sensor Circuit High Voltage |
| 1. | Start the engine. Hold the engine at 3,000 rpm (min-1) with no load (in Park or neutral) until the radiator fan comes on, then let it idle. |
| 2. | Check the MAP with the scan tool. Is about 101 kPa (760 mmHg, 30 in.Hg) or higher, or about 2.9 V or higher indicated? YES - Go to 3. NO - Intermittent failure, system is OK at this time. Check for poor connections or loose wires at the MAP sensor and at the ECM/ PCM.n |
| 3. | Turn the ignition switch OFF. |
| 4. | Disconnect the MAP sensor 3P connector. |
| 5. | Connect the MAP sensor 3P connector terminals No. 2 and No. 3 with a jumper wire.
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| 6. | Turn the ignition switch ON (II). |
| 7. | Check the MAP with the scan tool. Is about 101 kPa (760 mmHg, 30 in.Hg) or higher, or about 2.9 V or higher indicated? YES - Go to 8. NO - Replace the MAP sensor.n |
| 8. | Remove the jumper wire. |
| 9. | Measure voltage between the MAP sensor 3P connector terminals No. 1 and No. 3.
Is there about 5 V? YES - Go to 10. NO - Repair open in the wire between the ECM/PCM (A11) and the MAP sensor.n |
| 10. | Turn the ignition switch OFF. |
| 11. | Connect ECM/PCM connector terminals A11 and A19 with a jumper wire.
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| 12. | Turn the ignition switch ON (II). |
| 13. | Check the MAP with the scan tool. Is about 101 kPa (760 mmHg, 30 in.Hg) or higher, or about 2.9 V or higher indicated? YES - Substitute a known-good ECM/PCM and recheck. If the symptom/indication goes away, replace the original ECM/ PCM.n NO - Repair open in the wire between the ECM/PCM (A19) and the MAP sensor.n |