## PGM-FI System

#### DTC Troubleshooting (cont'd)

11-514

12. Measure voltage between the MAP sensor 3P connector terminals No. 2 and No. 3.

MAP SENSOR 3P CONNECTOR

Wire side of female terminals

Is there about 5 V?

YES | - Replace the MAP sensor.
NO | - Repair open in the wire between the ECM/PCM (A19) and the MAP sensor.

13. Turn the ignition switch OFF.
14. Disconnect the MAP sensor 3P connector.
15. Turn the ignition switch ON (II).
16. Measure voltage between ECM/PCM connector terminals A11 and A19.

ECM/PCM CONNECTOR A (31P)

Wire side of female terminals

Is there about 5 V?

YES | - Replace the MAP sensor.
NO | - Go to step 17.

17. Measure voltage between the MAP sensor 3P connector terminals No. 1 and body ground.

MAP SENSOR 3P CONNECTOR

Wire side of female terminals

Is there about 5 V?

YES | - Go to step 18.
NO | - Repair open in the wire between the ECM/PCM (A21) and the MAP sensor.

18. Turn the ignition switch OFF.
19. Disconnect ECM/PCM connector A (31P).
20. Check for continuity between ECM/PCM connector terminal A19 and body ground.

ECM/PCM CONNECTOR A (31P)

Wire side of female terminals

Is there continuity?

YES | - Repair short in the wire between the ECM/PCM (A19) and the MAP sensor.
NO | - Substitute a known-good ECM/PCM and recheck. If symptom/indication goes away, replace the original ECM/PCM.