## PGM-FI System

#### DTC Troubleshooting (cont'd)

11-391

DTC P0563: ECM/PCM Power Source Circuit Unexpected Voltage

1. Reset the ECM/PCM (see page 11-312).
2. Turn the ignition switch OFF.
3. Wait 5 seconds.
4. Turn the ignition switch ON (II).

Is DTC P0563 indicated?

YES | - Go to step 5.
NO | - Intermittent failure, system is OK at this time. Check for poor connections or loose wires at the No. 6 ECU (ECM/PCM) (15 A) fuse in the under-hood fuse/relay box and at the ECM/PCM.

5. Turn the ignition switch OFF.
6. Disconnect ECM/PCM connector E (31P).
7. Measure voltage between ECM/PCM connector terminal E7 and body ground.

ECM/PCM CONNECTOR E (31P)

Wire side of female terminals

Is there battery voltage?

YES | - Go to step 11.
NO | - Go to step 8.

8. Remove the glove box.

9. Remove the PGM-FI main relay 1 (A).

10. Check for continuity between ECM/PCM connector terminal E7 and body ground.

ECM/PCM CONNECTOR E (31P)

Wire side of female terminals

Is there continuity?

YES | - Repair short in the wire between the ECM/PCM (E7) and the PGM-FI main relay 1.
NO | - Replace the PGM-FI main relay 1.

11. Reconnect ECM/PCM connector E (31P).