## PGM-FI System

#### DTC Troubleshooting (cont'd)

11-360

DTC P0108: MAP Sensor Circuit High Voltage

1. Start the engine. Hold the engine at 3,000 rpm 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 step 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.

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.

MAP SENSOR 3P CONNECTOR

JUMPER WIRE

Wire side of female terminals

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 step 8.
NO | - Replace the MAP sensor.

8. Remove the jumper wire.

9. Measure voltage between the MAP sensor 3P connector terminals No. 1 and No. 3.

MAP SENSOR 3P CONNECTOR

Wire side of female terminals

Is there about 5 V?

YES | - Go to step 10.
NO | - Repair open in the wire between the ECM/PCM (A11) and the MAP sensor.

10. Turn the ignition switch OFF.
11. Connect ECM/PCM connector terminals A11 and A19 with a jumper wire.

ECM/PCM CONNECTOR A (31P)

JUMPER WIRE

Wire side of female terminals

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 (see page 11-313). If symptom/indication goes away, replace the original ECM/PCM.
NO | - Repair open in the wire between the ECM/PCM (A19) and the MAP sensor.